Search for acoplanar lepton pair events in e+e- collisions at √s = 161, 172 and 183 GeV

G. Abbiendi, K. Ackerstaff, G. Alexander, J. Allison, N. Altekamp, K. J. Anderson, S. Anderson, S. Arcelli, S. Asai, S. F. Ashby, D. Axen, G. Azuelos, A. H. Ball, E. Barberio, R. J. Barlow, R. Bartoldus, J. R. Batley, S. Baumann, J. Bechtluft, T. Behnke & 300 others K. W. Bell, G. Bella, A. Bellerive, S. Bentvelsen, S. Bethke, S. Betts, O. Biebel, A. Biguzzi, S. D. Bird, V. Blobel, I. J. Bloodworth, M. Bobinski, P. Bock, J. Böhme, D. Bonacorsi, M. Boutemeur, S. Braibant, P. Bright-Thomas, L. Brigliadori, R. M. Brown, H. J. Burckhart, C. Burgard, R. Burgin, P. Capiluppi, R. K. Carnegie, A. A. Carter, J. R. Carter, C. Y. Chang, D. G. Charlton, D. Chrisman, C. Ciocca, P. E.L. Clarke, E. Clay, I. Cohen, J. E. Conboy, O. C. Cooke, C. Couyoumtzelis, R. L. Coxe, M. Cuffiani, S. Dado, G. M. Dallavalle, R. Davis, S. De Jong, L. A. del Pozo, A. de Roeck, K. Desch, B. Dienes, M. S. Dixit, J. Dubbert, E. Duchovni, G. Duckeck, I. P. Duerdoth, D. Eatough, P. G. Estabrooks, E. Etzion, H. G. Evans, F. Fabbri, M. Fanti, A. A. Faust, F. Fiedler, M. Fierro, I. Fleck, R. Folman, A. Furtjes, D. I. Futyan, P. Gagnon, J. W. Gary, J. Gascon, S. M. Gascon-Shotkin, G. Gaycken, C. Geich-Gimbel, G. Giacomelli, P. Giacomelli, V. Gibson, W. R. Gibson, D. M. Gingrich, D. Glenzinski, J. Goldberg, W. Gorn, C. Grandi, E. Gross, J. Grunhaus, M. Gruwé, G. G. Hanson, M. Hansroul, M. Hapke, K. Harder, C. K. Hargrove, C. Hartmann, M. Hauschild, C. M. Hawkes, R. Hawkings, R. J. Hemingway, M. Herndon, G. Herten, R. D. Heuer, M. D. Hildreth, J. C. Hill, S. J. Hillier, P. R. Hobson, A. Hocker, R. J. Homer, A. K. Honma, D. Horváth, K. R. Hossain, R. Howard, P. Hüntemeyer, P. Igo-Kemenes, D. C. Imrie, K. Ishii, F. R. Jacob, A. Jawahery, H. Jeremie, M. Jimack, C. R. Jones, P. Jovanovic, T. R. Junk, D. Karlen, V. Kartvelishvili, K. Kawagoe, T. Kawamoto, P. I. Kayal, R. K. Keeler, R. G. Kellogg, B. W. Kennedy, A. Klier, S. Kluth, T. Kobayashi, M. Kobel, D. S. Koetke, T. P. Kokott, M. Kolrep, Sachio Komamiya, R. V. Kowalewski, T. Kress, P. Krieger, J. von Krogh, T. Kuhl, P. Kyberd, G. D. Lafferty, D. Lanske, J. Lauber, S. R. Lautenschlager, I. Lawson, J. G. Layter, D. Lazic, A. M. Lee, D. Lellouch, J. Letts, L. Levinson, R. Liebisch, B. List, C. Littlewood, A. W. Lloyd, S. L. Lloyd, F. K. Loebinger, G. D. Long, M. J. Losty, J. Ludwig, D. Liu, A. Macchiolo, A. Macpherson, W. Mader, M. Mannelli, S. Marcellini, C. Markopoulos, A. J. Martin, J. P. Martin, G. Martinez, T. Mashimo, P. Mattig, W. J. McDonald, J. McKenna, E. A. Mckigney, T. J. McMahon, R. A. McPherson, F. Meijers, S. Menke, F. S. Merritt, H. Mes, J. Meyer, A. Michelini, S. Mihara, G. Mikenberg, D. J. Miller, R. Mir, W. Mohr, A. Montanari, T. Mori, K. Nagai, I. Nakamura, H. A. Neal, B. Nellen, R. Nisius, S. W. O'Neale, F. G. Oakham, F. Odorici, H. O. Ogren, M. J. Oreglia, S. Orito, J. Pálinkás, G. Pásztor, J. R. Pater, G. N. Patrick, J. Patt, R. Perez-Ochoa, S. Petzold, P. Pfeifenschneider, J. E. Pilcher, J. Pinfold, D. E. Plane, P. Poffenberger, J. Polok, M. Przybycień, C. Rembser, H. Rick, S. Robertson, S. A. Robins, N. Rodning, J. M. Roney, K. Roscoe, A. M. Rossi, Y. Rozen, K. Runge, O. Runolfsson, D. R. Rust, K. Sachs, T. Saeki, O. Sahr, W. M. Sang, E. K.G. Sarkisyan, C. Sbarra, A. D. Schaile, O. Schaile, F. Scharf, P. Scharff-Hansen, J. Schieck, B. Schmitt, S. Schmitt, A. Schöning, M. Schröder, M. Schumacher, C. Schwick, W. G. Scott, R. Seuster, T. G. Shears, B. C. Shen, C. H. Shepherd-Themistocleous, P. Sherwood, G. P. Siroli, A. Sittler, A. Skuja, A. M. Smith, G. A. Snow, R. Sobie, S. Söldner-Rembold, M. Sproston, A. Stahl, K. Stephens, J. Steuerer, K. Stoll, D. Strom, R. Ströhmer, B. Surrow, S. D. Talbot, S. Tanaka, P. Taras, S. Tarem, R. Teuscher, M. Thiergen, M. A. Thomson, E. von Törne, E. Torrence, S. Towers, I. Trigger, Z. Trócsányi, E. Tsur, A. S. Turcot, M. F. Turner-Watson, R. Van Kooten, P. Vannerem, M. Verzocchi, H. Voss, F. Wäckerle, A. Wagner, C. P. Ward, D. R. Ward, P. M. Watkins, A. T. Watson, N. K. Watson, P. S. Wells, N. Wermes, J. S. White, G. W. Wilson, J. A. Wilson, T. R. Wyatt, S. Yamashita, G. Yekutieli, V. Zacek, D. Zer-Zion

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

A selection of di-lepton events with significant missing transverse momentum has been performed using a total data sample of 77.0 pb-1 at e+e- centre-of-mass energies of 161 GeV, 172 GeV and 183 GeV. The observed numbers of events: four at 161 GeV, nine at 173 GeV, and 78 at 183 GeV, are consistent with the numbers expected from Standard Model processes, which arise predominantly from W+W- production with each W decaying leptonically. This topology is an experimental signature also for the pair production of new particles that decay to a charged lepton accompanied by one or more invisible particles. Further event selection criteria are described that optimise the sensitivity to particular new physics channels. No evidence for new phenomena is apparent and limits on the production cross-section times branching ratio squared for various new physics processes are presented in a manner intended to minimise the number of model assumptions. Assuming a 100% branching ratio for the decay ℓ± R→ℓ± -0λ1, we exclude at 95%. CL: right-handed smuons with masses below 65 GeV for mμ̃ - m-0λ1 > 2 GeV and right-handed staus with masses below 64 GeV for m τ̃ - m-0λ1 > 10 GeV. Right-handed selectrons are excluded at 95% CL for masses below 77 GeV for mο̃ - m-0λ1 > 5 GeV within the framework of the Minimal Supersymmetric Standard Model assuming μ < -100 GeV and tan 3 = 1.5.

Original languageEnglish
Pages (from-to)551-565
Number of pages15
JournalEuropean Physical Journal C
Volume12
Issue number4
Publication statusPublished - 2000 Jan 1
Externally publishedYes

Fingerprint

leptons
collisions
Physics
particle decay
physics
pair production
transverse momentum
center of mass
Momentum
topology
signatures
Topology
sensitivity
cross sections
decay
energy

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Physics and Astronomy (miscellaneous)

Cite this

Abbiendi, G., Ackerstaff, K., Alexander, G., Allison, J., Altekamp, N., Anderson, K. J., ... Zer-Zion, D. (2000). Search for acoplanar lepton pair events in e+e- collisions at √s = 161, 172 and 183 GeV. European Physical Journal C, 12(4), 551-565.

Search for acoplanar lepton pair events in e+e- collisions at √s = 161, 172 and 183 GeV. / Abbiendi, G.; Ackerstaff, K.; Alexander, G.; Allison, J.; Altekamp, N.; Anderson, K. J.; Anderson, S.; Arcelli, S.; Asai, S.; Ashby, S. F.; Axen, D.; Azuelos, G.; Ball, A. H.; Barberio, E.; Barlow, R. J.; Bartoldus, R.; Batley, J. R.; Baumann, S.; Bechtluft, J.; Behnke, T.; Bell, K. W.; Bella, G.; Bellerive, A.; Bentvelsen, S.; Bethke, S.; Betts, S.; Biebel, O.; Biguzzi, A.; Bird, S. D.; Blobel, V.; Bloodworth, I. J.; Bobinski, M.; Bock, P.; Böhme, J.; Bonacorsi, D.; Boutemeur, M.; Braibant, S.; Bright-Thomas, P.; Brigliadori, L.; Brown, R. M.; Burckhart, H. J.; Burgard, C.; Burgin, R.; Capiluppi, P.; Carnegie, R. K.; Carter, A. A.; Carter, J. R.; Chang, C. Y.; Charlton, D. G.; Chrisman, D.; Ciocca, C.; Clarke, P. E.L.; Clay, E.; Cohen, I.; Conboy, J. E.; Cooke, O. C.; Couyoumtzelis, C.; Coxe, R. L.; Cuffiani, M.; Dado, S.; Dallavalle, G. M.; Davis, R.; De Jong, S.; del Pozo, L. A.; de Roeck, A.; Desch, K.; Dienes, B.; Dixit, M. S.; Dubbert, J.; Duchovni, E.; Duckeck, G.; Duerdoth, I. P.; Eatough, D.; Estabrooks, P. G.; Etzion, E.; Evans, H. G.; Fabbri, F.; Fanti, M.; Faust, A. A.; Fiedler, F.; Fierro, M.; Fleck, I.; Folman, R.; Furtjes, A.; Futyan, D. I.; Gagnon, P.; Gary, J. W.; Gascon, J.; Gascon-Shotkin, S. M.; Gaycken, G.; Geich-Gimbel, C.; Giacomelli, G.; Giacomelli, P.; Gibson, V.; Gibson, W. R.; Gingrich, D. M.; Glenzinski, D.; Goldberg, J.; Gorn, W.; Grandi, C.; Gross, E.; Grunhaus, J.; Gruwé, M.; Hanson, G. G.; Hansroul, M.; Hapke, M.; Harder, K.; Hargrove, C. K.; Hartmann, C.; Hauschild, M.; Hawkes, C. M.; Hawkings, R.; Hemingway, R. J.; Herndon, M.; Herten, G.; Heuer, R. D.; Hildreth, M. D.; Hill, J. C.; Hillier, S. J.; Hobson, P. R.; Hocker, A.; Homer, R. J.; Honma, A. K.; Horváth, D.; Hossain, K. R.; Howard, R.; Hüntemeyer, P.; Igo-Kemenes, P.; Imrie, D. C.; Ishii, K.; Jacob, F. R.; Jawahery, A.; Jeremie, H.; Jimack, M.; Jones, C. R.; Jovanovic, P.; Junk, T. R.; Karlen, D.; Kartvelishvili, V.; Kawagoe, K.; Kawamoto, T.; Kayal, P. I.; Keeler, R. K.; Kellogg, R. G.; Kennedy, B. W.; Klier, A.; Kluth, S.; Kobayashi, T.; Kobel, M.; Koetke, D. S.; Kokott, T. P.; Kolrep, M.; Komamiya, Sachio; Kowalewski, R. V.; Kress, T.; Krieger, P.; von Krogh, J.; Kuhl, T.; Kyberd, P.; Lafferty, G. D.; Lanske, D.; Lauber, J.; Lautenschlager, S. R.; Lawson, I.; Layter, J. G.; Lazic, D.; Lee, A. M.; Lellouch, D.; Letts, J.; Levinson, L.; Liebisch, R.; List, B.; Littlewood, C.; Lloyd, A. W.; Lloyd, S. L.; Loebinger, F. K.; Long, G. D.; Losty, M. J.; Ludwig, J.; Liu, D.; Macchiolo, A.; Macpherson, A.; Mader, W.; Mannelli, M.; Marcellini, S.; Markopoulos, C.; Martin, A. J.; Martin, J. P.; Martinez, G.; Mashimo, T.; Mattig, P.; McDonald, W. J.; McKenna, J.; Mckigney, E. A.; McMahon, T. J.; McPherson, R. A.; Meijers, F.; Menke, S.; Merritt, F. S.; Mes, H.; Meyer, J.; Michelini, A.; Mihara, S.; Mikenberg, G.; Miller, D. J.; Mir, R.; Mohr, W.; Montanari, A.; Mori, T.; Nagai, K.; Nakamura, I.; Neal, H. A.; Nellen, B.; Nisius, R.; O'Neale, S. W.; Oakham, F. G.; Odorici, F.; Ogren, H. O.; Oreglia, M. J.; Orito, S.; Pálinkás, J.; Pásztor, G.; Pater, J. R.; Patrick, G. N.; Patt, J.; Perez-Ochoa, R.; Petzold, S.; Pfeifenschneider, P.; Pilcher, J. E.; Pinfold, J.; Plane, D. E.; Poffenberger, P.; Polok, J.; Przybycień, M.; Rembser, C.; Rick, H.; Robertson, S.; Robins, S. A.; Rodning, N.; Roney, J. M.; Roscoe, K.; Rossi, A. M.; Rozen, Y.; Runge, K.; Runolfsson, O.; Rust, D. R.; Sachs, K.; Saeki, T.; Sahr, O.; Sang, W. M.; Sarkisyan, E. K.G.; Sbarra, C.; Schaile, A. D.; Schaile, O.; Scharf, F.; Scharff-Hansen, P.; Schieck, J.; Schmitt, B.; Schmitt, S.; Schöning, A.; Schröder, M.; Schumacher, M.; Schwick, C.; Scott, W. G.; Seuster, R.; Shears, T. G.; Shen, B. C.; Shepherd-Themistocleous, C. H.; Sherwood, P.; Siroli, G. P.; Sittler, A.; Skuja, A.; Smith, A. M.; Snow, G. A.; Sobie, R.; Söldner-Rembold, S.; Sproston, M.; Stahl, A.; Stephens, K.; Steuerer, J.; Stoll, K.; Strom, D.; Ströhmer, R.; Surrow, B.; Talbot, S. D.; Tanaka, S.; Taras, P.; Tarem, S.; Teuscher, R.; Thiergen, M.; Thomson, M. A.; von Törne, E.; Torrence, E.; Towers, S.; Trigger, I.; Trócsányi, Z.; Tsur, E.; Turcot, A. S.; Turner-Watson, M. F.; Van Kooten, R.; Vannerem, P.; Verzocchi, M.; Voss, H.; Wäckerle, F.; Wagner, A.; Ward, C. P.; Ward, D. R.; Watkins, P. M.; Watson, A. T.; Watson, N. K.; Wells, P. S.; Wermes, N.; White, J. S.; Wilson, G. W.; Wilson, J. A.; Wyatt, T. R.; Yamashita, S.; Yekutieli, G.; Zacek, V.; Zer-Zion, D.

In: European Physical Journal C, Vol. 12, No. 4, 01.01.2000, p. 551-565.

Research output: Contribution to journalArticle

Abbiendi, G, Ackerstaff, K, Alexander, G, Allison, J, Altekamp, N, Anderson, KJ, Anderson, S, Arcelli, S, Asai, S, Ashby, SF, Axen, D, Azuelos, G, Ball, AH, Barberio, E, Barlow, RJ, Bartoldus, R, Batley, JR, Baumann, S, Bechtluft, J, Behnke, T, Bell, KW, Bella, G, Bellerive, A, Bentvelsen, S, Bethke, S, Betts, S, Biebel, O, Biguzzi, A, Bird, SD, Blobel, V, Bloodworth, IJ, Bobinski, M, Bock, P, Böhme, J, Bonacorsi, D, Boutemeur, M, Braibant, S, Bright-Thomas, P, Brigliadori, L, Brown, RM, Burckhart, HJ, Burgard, C, Burgin, R, Capiluppi, P, Carnegie, RK, Carter, AA, Carter, JR, Chang, CY, Charlton, DG, Chrisman, D, Ciocca, C, Clarke, PEL, Clay, E, Cohen, I, Conboy, JE, Cooke, OC, Couyoumtzelis, C, Coxe, RL, Cuffiani, M, Dado, S, Dallavalle, GM, Davis, R, De Jong, S, del Pozo, LA, de Roeck, A, Desch, K, Dienes, B, Dixit, MS, Dubbert, J, Duchovni, E, Duckeck, G, Duerdoth, IP, Eatough, D, Estabrooks, PG, Etzion, E, Evans, HG, Fabbri, F, Fanti, M, Faust, AA, Fiedler, F, Fierro, M, Fleck, I, Folman, R, Furtjes, A, Futyan, DI, Gagnon, P, Gary, JW, Gascon, J, Gascon-Shotkin, SM, Gaycken, G, Geich-Gimbel, C, Giacomelli, G, Giacomelli, P, Gibson, V, Gibson, WR, Gingrich, DM, Glenzinski, D, Goldberg, J, Gorn, W, Grandi, C, Gross, E, Grunhaus, J, Gruwé, M, Hanson, GG, Hansroul, M, Hapke, M, Harder, K, Hargrove, CK, Hartmann, C, Hauschild, M, Hawkes, CM, Hawkings, R, Hemingway, RJ, Herndon, M, Herten, G, Heuer, RD, Hildreth, MD, Hill, JC, Hillier, SJ, Hobson, PR, Hocker, A, Homer, RJ, Honma, AK, Horváth, D, Hossain, KR, Howard, R, Hüntemeyer, P, Igo-Kemenes, P, Imrie, DC, Ishii, K, Jacob, FR, Jawahery, A, Jeremie, H, Jimack, M, Jones, CR, Jovanovic, P, Junk, TR, Karlen, D, Kartvelishvili, V, Kawagoe, K, Kawamoto, T, Kayal, PI, Keeler, RK, Kellogg, RG, Kennedy, BW, Klier, A, Kluth, S, Kobayashi, T, Kobel, M, Koetke, DS, Kokott, TP, Kolrep, M, Komamiya, S, Kowalewski, RV, Kress, T, Krieger, P, von Krogh, J, Kuhl, T, Kyberd, P, Lafferty, GD, Lanske, D, Lauber, J, Lautenschlager, SR, Lawson, I, Layter, JG, Lazic, D, Lee, AM, Lellouch, D, Letts, J, Levinson, L, Liebisch, R, List, B, Littlewood, C, Lloyd, AW, Lloyd, SL, Loebinger, FK, Long, GD, Losty, MJ, Ludwig, J, Liu, D, Macchiolo, A, Macpherson, A, Mader, W, Mannelli, M, Marcellini, S, Markopoulos, C, Martin, AJ, Martin, JP, Martinez, G, Mashimo, T, Mattig, P, McDonald, WJ, McKenna, J, Mckigney, EA, McMahon, TJ, McPherson, RA, Meijers, F, Menke, S, Merritt, FS, Mes, H, Meyer, J, Michelini, A, Mihara, S, Mikenberg, G, Miller, DJ, Mir, R, Mohr, W, Montanari, A, Mori, T, Nagai, K, Nakamura, I, Neal, HA, Nellen, B, Nisius, R, O'Neale, SW, Oakham, FG, Odorici, F, Ogren, HO, Oreglia, MJ, Orito, S, Pálinkás, J, Pásztor, G, Pater, JR, Patrick, GN, Patt, J, Perez-Ochoa, R, Petzold, S, Pfeifenschneider, P, Pilcher, JE, Pinfold, J, Plane, DE, Poffenberger, P, Polok, J, Przybycień, M, Rembser, C, Rick, H, Robertson, S, Robins, SA, Rodning, N, Roney, JM, Roscoe, K, Rossi, AM, Rozen, Y, Runge, K, Runolfsson, O, Rust, DR, Sachs, K, Saeki, T, Sahr, O, Sang, WM, Sarkisyan, EKG, Sbarra, C, Schaile, AD, Schaile, O, Scharf, F, Scharff-Hansen, P, Schieck, J, Schmitt, B, Schmitt, S, Schöning, A, Schröder, M, Schumacher, M, Schwick, C, Scott, WG, Seuster, R, Shears, TG, Shen, BC, Shepherd-Themistocleous, CH, Sherwood, P, Siroli, GP, Sittler, A, Skuja, A, Smith, AM, Snow, GA, Sobie, R, Söldner-Rembold, S, Sproston, M, Stahl, A, Stephens, K, Steuerer, J, Stoll, K, Strom, D, Ströhmer, R, Surrow, B, Talbot, SD, Tanaka, S, Taras, P, Tarem, S, Teuscher, R, Thiergen, M, Thomson, MA, von Törne, E, Torrence, E, Towers, S, Trigger, I, Trócsányi, Z, Tsur, E, Turcot, AS, Turner-Watson, MF, Van Kooten, R, Vannerem, P, Verzocchi, M, Voss, H, Wäckerle, F, Wagner, A, Ward, CP, Ward, DR, Watkins, PM, Watson, AT, Watson, NK, Wells, PS, Wermes, N, White, JS, Wilson, GW, Wilson, JA, Wyatt, TR, Yamashita, S, Yekutieli, G, Zacek, V & Zer-Zion, D 2000, 'Search for acoplanar lepton pair events in e+e- collisions at √s = 161, 172 and 183 GeV', European Physical Journal C, vol. 12, no. 4, pp. 551-565.
Abbiendi G, Ackerstaff K, Alexander G, Allison J, Altekamp N, Anderson KJ et al. Search for acoplanar lepton pair events in e+e- collisions at √s = 161, 172 and 183 GeV. European Physical Journal C. 2000 Jan 1;12(4):551-565.
Abbiendi, G. ; Ackerstaff, K. ; Alexander, G. ; Allison, J. ; Altekamp, N. ; Anderson, K. J. ; Anderson, S. ; Arcelli, S. ; Asai, S. ; Ashby, S. F. ; Axen, D. ; Azuelos, G. ; Ball, A. H. ; Barberio, E. ; Barlow, R. J. ; Bartoldus, R. ; Batley, J. R. ; Baumann, S. ; Bechtluft, J. ; Behnke, T. ; Bell, K. W. ; Bella, G. ; Bellerive, A. ; Bentvelsen, S. ; Bethke, S. ; Betts, S. ; Biebel, O. ; Biguzzi, A. ; Bird, S. D. ; Blobel, V. ; Bloodworth, I. J. ; Bobinski, M. ; Bock, P. ; Böhme, J. ; Bonacorsi, D. ; Boutemeur, M. ; Braibant, S. ; Bright-Thomas, P. ; Brigliadori, L. ; Brown, R. M. ; Burckhart, H. J. ; Burgard, C. ; Burgin, R. ; Capiluppi, P. ; Carnegie, R. K. ; Carter, A. A. ; Carter, J. R. ; Chang, C. Y. ; Charlton, D. G. ; Chrisman, D. ; Ciocca, C. ; Clarke, P. E.L. ; Clay, E. ; Cohen, I. ; Conboy, J. E. ; Cooke, O. C. ; Couyoumtzelis, C. ; Coxe, R. L. ; Cuffiani, M. ; Dado, S. ; Dallavalle, G. M. ; Davis, R. ; De Jong, S. ; del Pozo, L. A. ; de Roeck, A. ; Desch, K. ; Dienes, B. ; Dixit, M. S. ; Dubbert, J. ; Duchovni, E. ; Duckeck, G. ; Duerdoth, I. P. ; Eatough, D. ; Estabrooks, P. G. ; Etzion, E. ; Evans, H. G. ; Fabbri, F. ; Fanti, M. ; Faust, A. A. ; Fiedler, F. ; Fierro, M. ; Fleck, I. ; Folman, R. ; Furtjes, A. ; Futyan, D. I. ; Gagnon, P. ; Gary, J. W. ; Gascon, J. ; Gascon-Shotkin, S. M. ; Gaycken, G. ; Geich-Gimbel, C. ; Giacomelli, G. ; Giacomelli, P. ; Gibson, V. ; Gibson, W. R. ; Gingrich, D. M. ; Glenzinski, D. ; Goldberg, J. ; Gorn, W. ; Grandi, C. ; Gross, E. ; Grunhaus, J. ; Gruwé, M. ; Hanson, G. G. ; Hansroul, M. ; Hapke, M. ; Harder, K. ; Hargrove, C. K. ; Hartmann, C. ; Hauschild, M. ; Hawkes, C. M. ; Hawkings, R. ; Hemingway, R. J. ; Herndon, M. ; Herten, G. ; Heuer, R. D. ; Hildreth, M. D. ; Hill, J. C. ; Hillier, S. J. ; Hobson, P. R. ; Hocker, A. ; Homer, R. J. ; Honma, A. K. ; Horváth, D. ; Hossain, K. R. ; Howard, R. ; Hüntemeyer, P. ; Igo-Kemenes, P. ; Imrie, D. C. ; Ishii, K. ; Jacob, F. R. ; Jawahery, A. ; Jeremie, H. ; Jimack, M. ; Jones, C. R. ; Jovanovic, P. ; Junk, T. R. ; Karlen, D. ; Kartvelishvili, V. ; Kawagoe, K. ; Kawamoto, T. ; Kayal, P. I. ; Keeler, R. K. ; Kellogg, R. G. ; Kennedy, B. W. ; Klier, A. ; Kluth, S. ; Kobayashi, T. ; Kobel, M. ; Koetke, D. S. ; Kokott, T. P. ; Kolrep, M. ; Komamiya, Sachio ; Kowalewski, R. V. ; Kress, T. ; Krieger, P. ; von Krogh, J. ; Kuhl, T. ; Kyberd, P. ; Lafferty, G. D. ; Lanske, D. ; Lauber, J. ; Lautenschlager, S. R. ; Lawson, I. ; Layter, J. G. ; Lazic, D. ; Lee, A. M. ; Lellouch, D. ; Letts, J. ; Levinson, L. ; Liebisch, R. ; List, B. ; Littlewood, C. ; Lloyd, A. W. ; Lloyd, S. L. ; Loebinger, F. K. ; Long, G. D. ; Losty, M. J. ; Ludwig, J. ; Liu, D. ; Macchiolo, A. ; Macpherson, A. ; Mader, W. ; Mannelli, M. ; Marcellini, S. ; Markopoulos, C. ; Martin, A. J. ; Martin, J. P. ; Martinez, G. ; Mashimo, T. ; Mattig, P. ; McDonald, W. J. ; McKenna, J. ; Mckigney, E. A. ; McMahon, T. J. ; McPherson, R. A. ; Meijers, F. ; Menke, S. ; Merritt, F. S. ; Mes, H. ; Meyer, J. ; Michelini, A. ; Mihara, S. ; Mikenberg, G. ; Miller, D. J. ; Mir, R. ; Mohr, W. ; Montanari, A. ; Mori, T. ; Nagai, K. ; Nakamura, I. ; Neal, H. A. ; Nellen, B. ; Nisius, R. ; O'Neale, S. W. ; Oakham, F. G. ; Odorici, F. ; Ogren, H. O. ; Oreglia, M. J. ; Orito, S. ; Pálinkás, J. ; Pásztor, G. ; Pater, J. R. ; Patrick, G. N. ; Patt, J. ; Perez-Ochoa, R. ; Petzold, S. ; Pfeifenschneider, P. ; Pilcher, J. E. ; Pinfold, J. ; Plane, D. E. ; Poffenberger, P. ; Polok, J. ; Przybycień, M. ; Rembser, C. ; Rick, H. ; Robertson, S. ; Robins, S. A. ; Rodning, N. ; Roney, J. M. ; Roscoe, K. ; Rossi, A. M. ; Rozen, Y. ; Runge, K. ; Runolfsson, O. ; Rust, D. R. ; Sachs, K. ; Saeki, T. ; Sahr, O. ; Sang, W. M. ; Sarkisyan, E. K.G. ; Sbarra, C. ; Schaile, A. D. ; Schaile, O. ; Scharf, F. ; Scharff-Hansen, P. ; Schieck, J. ; Schmitt, B. ; Schmitt, S. ; Schöning, A. ; Schröder, M. ; Schumacher, M. ; Schwick, C. ; Scott, W. G. ; Seuster, R. ; Shears, T. G. ; Shen, B. C. ; Shepherd-Themistocleous, C. H. ; Sherwood, P. ; Siroli, G. P. ; Sittler, A. ; Skuja, A. ; Smith, A. M. ; Snow, G. A. ; Sobie, R. ; Söldner-Rembold, S. ; Sproston, M. ; Stahl, A. ; Stephens, K. ; Steuerer, J. ; Stoll, K. ; Strom, D. ; Ströhmer, R. ; Surrow, B. ; Talbot, S. D. ; Tanaka, S. ; Taras, P. ; Tarem, S. ; Teuscher, R. ; Thiergen, M. ; Thomson, M. A. ; von Törne, E. ; Torrence, E. ; Towers, S. ; Trigger, I. ; Trócsányi, Z. ; Tsur, E. ; Turcot, A. S. ; Turner-Watson, M. F. ; Van Kooten, R. ; Vannerem, P. ; Verzocchi, M. ; Voss, H. ; Wäckerle, F. ; Wagner, A. ; Ward, C. P. ; Ward, D. R. ; Watkins, P. M. ; Watson, A. T. ; Watson, N. K. ; Wells, P. S. ; Wermes, N. ; White, J. S. ; Wilson, G. W. ; Wilson, J. A. ; Wyatt, T. R. ; Yamashita, S. ; Yekutieli, G. ; Zacek, V. ; Zer-Zion, D. / Search for acoplanar lepton pair events in e+e- collisions at √s = 161, 172 and 183 GeV. In: European Physical Journal C. 2000 ; Vol. 12, No. 4. pp. 551-565.
@article{d4f95c6c58ca46dfb348f59ff0eddb3b,
title = "Search for acoplanar lepton pair events in e+e- collisions at √s = 161, 172 and 183 GeV",
abstract = "A selection of di-lepton events with significant missing transverse momentum has been performed using a total data sample of 77.0 pb-1 at e+e- centre-of-mass energies of 161 GeV, 172 GeV and 183 GeV. The observed numbers of events: four at 161 GeV, nine at 173 GeV, and 78 at 183 GeV, are consistent with the numbers expected from Standard Model processes, which arise predominantly from W+W- production with each W decaying leptonically. This topology is an experimental signature also for the pair production of new particles that decay to a charged lepton accompanied by one or more invisible particles. Further event selection criteria are described that optimise the sensitivity to particular new physics channels. No evidence for new phenomena is apparent and limits on the production cross-section times branching ratio squared for various new physics processes are presented in a manner intended to minimise the number of model assumptions. Assuming a 100{\%} branching ratio for the decay ℓ± R→ℓ± -0λ1, we exclude at 95{\%}. CL: right-handed smuons with masses below 65 GeV for mμ̃ - m-0λ1 > 2 GeV and right-handed staus with masses below 64 GeV for m τ̃ - m-0λ1 > 10 GeV. Right-handed selectrons are excluded at 95{\%} CL for masses below 77 GeV for mο̃ - m-0λ1 > 5 GeV within the framework of the Minimal Supersymmetric Standard Model assuming μ < -100 GeV and tan 3 = 1.5.",
author = "G. Abbiendi and K. Ackerstaff and G. Alexander and J. Allison and N. Altekamp and Anderson, {K. J.} and S. Anderson and S. Arcelli and S. Asai and Ashby, {S. F.} and D. Axen and G. Azuelos and Ball, {A. H.} and E. Barberio and Barlow, {R. J.} and R. Bartoldus and Batley, {J. R.} and S. Baumann and J. Bechtluft and T. Behnke and Bell, {K. W.} and G. Bella and A. Bellerive and S. Bentvelsen and S. Bethke and S. Betts and O. Biebel and A. Biguzzi and Bird, {S. D.} and V. Blobel and Bloodworth, {I. J.} and M. Bobinski and P. Bock and J. B{\"o}hme and D. Bonacorsi and M. Boutemeur and S. Braibant and P. Bright-Thomas and L. Brigliadori and Brown, {R. M.} and Burckhart, {H. J.} and C. Burgard and R. Burgin and P. Capiluppi and Carnegie, {R. K.} and Carter, {A. A.} and Carter, {J. R.} and Chang, {C. Y.} and Charlton, {D. G.} and D. Chrisman and C. Ciocca and Clarke, {P. E.L.} and E. Clay and I. Cohen and Conboy, {J. E.} and Cooke, {O. C.} and C. Couyoumtzelis and Coxe, {R. L.} and M. Cuffiani and S. Dado and Dallavalle, {G. M.} and R. Davis and {De Jong}, S. and {del Pozo}, {L. A.} and {de Roeck}, A. and K. Desch and B. Dienes and Dixit, {M. S.} and J. Dubbert and E. Duchovni and G. Duckeck and Duerdoth, {I. P.} and D. Eatough and Estabrooks, {P. G.} and E. Etzion and Evans, {H. G.} and F. Fabbri and M. Fanti and Faust, {A. A.} and F. Fiedler and M. Fierro and I. Fleck and R. Folman and A. Furtjes and Futyan, {D. I.} and P. Gagnon and Gary, {J. W.} and J. Gascon and Gascon-Shotkin, {S. M.} and G. Gaycken and C. Geich-Gimbel and G. Giacomelli and P. Giacomelli and V. Gibson and Gibson, {W. R.} and Gingrich, {D. M.} and D. Glenzinski and J. Goldberg and W. Gorn and C. Grandi and E. Gross and J. Grunhaus and M. Gruw{\'e} and Hanson, {G. G.} and M. Hansroul and M. Hapke and K. Harder and Hargrove, {C. K.} and C. Hartmann and M. Hauschild and Hawkes, {C. M.} and R. Hawkings and Hemingway, {R. J.} and M. Herndon and G. Herten and Heuer, {R. D.} and Hildreth, {M. D.} and Hill, {J. C.} and Hillier, {S. J.} and Hobson, {P. R.} and A. Hocker and Homer, {R. J.} and Honma, {A. K.} and D. Horv{\'a}th and Hossain, {K. R.} and R. Howard and P. H{\"u}ntemeyer and P. Igo-Kemenes and Imrie, {D. C.} and K. Ishii and Jacob, {F. R.} and A. Jawahery and H. Jeremie and M. Jimack and Jones, {C. R.} and P. Jovanovic and Junk, {T. R.} and D. Karlen and V. Kartvelishvili and K. Kawagoe and T. Kawamoto and Kayal, {P. I.} and Keeler, {R. K.} and Kellogg, {R. G.} and Kennedy, {B. W.} and A. Klier and S. Kluth and T. Kobayashi and M. Kobel and Koetke, {D. S.} and Kokott, {T. P.} and M. Kolrep and Sachio Komamiya and Kowalewski, {R. V.} and T. Kress and P. Krieger and {von Krogh}, J. and T. Kuhl and P. Kyberd and Lafferty, {G. D.} and D. Lanske and J. Lauber and Lautenschlager, {S. R.} and I. Lawson and Layter, {J. G.} and D. Lazic and Lee, {A. M.} and D. Lellouch and J. Letts and L. Levinson and R. Liebisch and B. List and C. Littlewood and Lloyd, {A. W.} and Lloyd, {S. L.} and Loebinger, {F. K.} and Long, {G. D.} and Losty, {M. J.} and J. Ludwig and D. Liu and A. Macchiolo and A. Macpherson and W. Mader and M. Mannelli and S. Marcellini and C. Markopoulos and Martin, {A. J.} and Martin, {J. P.} and G. Martinez and T. Mashimo and P. Mattig and McDonald, {W. J.} and J. McKenna and Mckigney, {E. A.} and McMahon, {T. J.} and McPherson, {R. A.} and F. Meijers and S. Menke and Merritt, {F. S.} and H. Mes and J. Meyer and A. Michelini and S. Mihara and G. Mikenberg and Miller, {D. J.} and R. Mir and W. Mohr and A. Montanari and T. Mori and K. Nagai and I. Nakamura and Neal, {H. A.} and B. Nellen and R. Nisius and O'Neale, {S. W.} and Oakham, {F. G.} and F. Odorici and Ogren, {H. O.} and Oreglia, {M. J.} and S. Orito and J. P{\'a}link{\'a}s and G. P{\'a}sztor and Pater, {J. R.} and Patrick, {G. N.} and J. Patt and R. Perez-Ochoa and S. Petzold and P. Pfeifenschneider and Pilcher, {J. E.} and J. Pinfold and Plane, {D. E.} and P. Poffenberger and J. Polok and M. Przybycień and C. Rembser and H. Rick and S. Robertson and Robins, {S. A.} and N. Rodning and Roney, {J. M.} and K. Roscoe and Rossi, {A. M.} and Y. Rozen and K. Runge and O. Runolfsson and Rust, {D. R.} and K. Sachs and T. Saeki and O. Sahr and Sang, {W. M.} and Sarkisyan, {E. K.G.} and C. Sbarra and Schaile, {A. D.} and O. Schaile and F. Scharf and P. Scharff-Hansen and J. Schieck and B. Schmitt and S. Schmitt and A. Sch{\"o}ning and M. Schr{\"o}der and M. Schumacher and C. Schwick and Scott, {W. G.} and R. Seuster and Shears, {T. G.} and Shen, {B. C.} and Shepherd-Themistocleous, {C. H.} and P. Sherwood and Siroli, {G. P.} and A. Sittler and A. Skuja and Smith, {A. M.} and Snow, {G. A.} and R. Sobie and S. S{\"o}ldner-Rembold and M. Sproston and A. Stahl and K. Stephens and J. Steuerer and K. Stoll and D. Strom and R. Str{\"o}hmer and B. Surrow and Talbot, {S. D.} and S. Tanaka and P. Taras and S. Tarem and R. Teuscher and M. Thiergen and Thomson, {M. A.} and {von T{\"o}rne}, E. and E. Torrence and S. Towers and I. Trigger and Z. Tr{\'o}cs{\'a}nyi and E. Tsur and Turcot, {A. S.} and Turner-Watson, {M. F.} and {Van Kooten}, R. and P. Vannerem and M. Verzocchi and H. Voss and F. W{\"a}ckerle and A. Wagner and Ward, {C. P.} and Ward, {D. R.} and Watkins, {P. M.} and Watson, {A. T.} and Watson, {N. K.} and Wells, {P. S.} and N. Wermes and White, {J. S.} and Wilson, {G. W.} and Wilson, {J. A.} and Wyatt, {T. R.} and S. Yamashita and G. Yekutieli and V. Zacek and D. Zer-Zion",
year = "2000",
month = "1",
day = "1",
language = "English",
volume = "12",
pages = "551--565",
journal = "European Physical Journal C",
issn = "1434-6044",
publisher = "Springer New York",
number = "4",

}

TY - JOUR

T1 - Search for acoplanar lepton pair events in e+e- collisions at √s = 161, 172 and 183 GeV

AU - Abbiendi, G.

AU - Ackerstaff, K.

AU - Alexander, G.

AU - Allison, J.

AU - Altekamp, N.

AU - Anderson, K. J.

AU - Anderson, S.

AU - Arcelli, S.

AU - Asai, S.

AU - Ashby, S. F.

AU - Axen, D.

AU - Azuelos, G.

AU - Ball, A. H.

AU - Barberio, E.

AU - Barlow, R. J.

AU - Bartoldus, R.

AU - Batley, J. R.

AU - Baumann, S.

AU - Bechtluft, J.

AU - Behnke, T.

AU - Bell, K. W.

AU - Bella, G.

AU - Bellerive, A.

AU - Bentvelsen, S.

AU - Bethke, S.

AU - Betts, S.

AU - Biebel, O.

AU - Biguzzi, A.

AU - Bird, S. D.

AU - Blobel, V.

AU - Bloodworth, I. J.

AU - Bobinski, M.

AU - Bock, P.

AU - Böhme, J.

AU - Bonacorsi, D.

AU - Boutemeur, M.

AU - Braibant, S.

AU - Bright-Thomas, P.

AU - Brigliadori, L.

AU - Brown, R. M.

AU - Burckhart, H. J.

AU - Burgard, C.

AU - Burgin, R.

AU - Capiluppi, P.

AU - Carnegie, R. K.

AU - Carter, A. A.

AU - Carter, J. R.

AU - Chang, C. Y.

AU - Charlton, D. G.

AU - Chrisman, D.

AU - Ciocca, C.

AU - Clarke, P. E.L.

AU - Clay, E.

AU - Cohen, I.

AU - Conboy, J. E.

AU - Cooke, O. C.

AU - Couyoumtzelis, C.

AU - Coxe, R. L.

AU - Cuffiani, M.

AU - Dado, S.

AU - Dallavalle, G. M.

AU - Davis, R.

AU - De Jong, S.

AU - del Pozo, L. A.

AU - de Roeck, A.

AU - Desch, K.

AU - Dienes, B.

AU - Dixit, M. S.

AU - Dubbert, J.

AU - Duchovni, E.

AU - Duckeck, G.

AU - Duerdoth, I. P.

AU - Eatough, D.

AU - Estabrooks, P. G.

AU - Etzion, E.

AU - Evans, H. G.

AU - Fabbri, F.

AU - Fanti, M.

AU - Faust, A. A.

AU - Fiedler, F.

AU - Fierro, M.

AU - Fleck, I.

AU - Folman, R.

AU - Furtjes, A.

AU - Futyan, D. I.

AU - Gagnon, P.

AU - Gary, J. W.

AU - Gascon, J.

AU - Gascon-Shotkin, S. M.

AU - Gaycken, G.

AU - Geich-Gimbel, C.

AU - Giacomelli, G.

AU - Giacomelli, P.

AU - Gibson, V.

AU - Gibson, W. R.

AU - Gingrich, D. M.

AU - Glenzinski, D.

AU - Goldberg, J.

AU - Gorn, W.

AU - Grandi, C.

AU - Gross, E.

AU - Grunhaus, J.

AU - Gruwé, M.

AU - Hanson, G. G.

AU - Hansroul, M.

AU - Hapke, M.

AU - Harder, K.

AU - Hargrove, C. K.

AU - Hartmann, C.

AU - Hauschild, M.

AU - Hawkes, C. M.

AU - Hawkings, R.

AU - Hemingway, R. J.

AU - Herndon, M.

AU - Herten, G.

AU - Heuer, R. D.

AU - Hildreth, M. D.

AU - Hill, J. C.

AU - Hillier, S. J.

AU - Hobson, P. R.

AU - Hocker, A.

AU - Homer, R. J.

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PY - 2000/1/1

Y1 - 2000/1/1

N2 - A selection of di-lepton events with significant missing transverse momentum has been performed using a total data sample of 77.0 pb-1 at e+e- centre-of-mass energies of 161 GeV, 172 GeV and 183 GeV. The observed numbers of events: four at 161 GeV, nine at 173 GeV, and 78 at 183 GeV, are consistent with the numbers expected from Standard Model processes, which arise predominantly from W+W- production with each W decaying leptonically. This topology is an experimental signature also for the pair production of new particles that decay to a charged lepton accompanied by one or more invisible particles. Further event selection criteria are described that optimise the sensitivity to particular new physics channels. No evidence for new phenomena is apparent and limits on the production cross-section times branching ratio squared for various new physics processes are presented in a manner intended to minimise the number of model assumptions. Assuming a 100% branching ratio for the decay ℓ± R→ℓ± -0λ1, we exclude at 95%. CL: right-handed smuons with masses below 65 GeV for mμ̃ - m-0λ1 > 2 GeV and right-handed staus with masses below 64 GeV for m τ̃ - m-0λ1 > 10 GeV. Right-handed selectrons are excluded at 95% CL for masses below 77 GeV for mο̃ - m-0λ1 > 5 GeV within the framework of the Minimal Supersymmetric Standard Model assuming μ < -100 GeV and tan 3 = 1.5.

AB - A selection of di-lepton events with significant missing transverse momentum has been performed using a total data sample of 77.0 pb-1 at e+e- centre-of-mass energies of 161 GeV, 172 GeV and 183 GeV. The observed numbers of events: four at 161 GeV, nine at 173 GeV, and 78 at 183 GeV, are consistent with the numbers expected from Standard Model processes, which arise predominantly from W+W- production with each W decaying leptonically. This topology is an experimental signature also for the pair production of new particles that decay to a charged lepton accompanied by one or more invisible particles. Further event selection criteria are described that optimise the sensitivity to particular new physics channels. No evidence for new phenomena is apparent and limits on the production cross-section times branching ratio squared for various new physics processes are presented in a manner intended to minimise the number of model assumptions. Assuming a 100% branching ratio for the decay ℓ± R→ℓ± -0λ1, we exclude at 95%. CL: right-handed smuons with masses below 65 GeV for mμ̃ - m-0λ1 > 2 GeV and right-handed staus with masses below 64 GeV for m τ̃ - m-0λ1 > 10 GeV. Right-handed selectrons are excluded at 95% CL for masses below 77 GeV for mο̃ - m-0λ1 > 5 GeV within the framework of the Minimal Supersymmetric Standard Model assuming μ < -100 GeV and tan 3 = 1.5.

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M3 - Article

VL - 12

SP - 551

EP - 565

JO - European Physical Journal C

JF - European Physical Journal C

SN - 1434-6044

IS - 4

ER -