Cross section and heavy quark composition of γ+μ events produced in pp̄ collisions

T. Affolder; H. Akimoto; A. Akopian; M. G. Albrow; P. Amaral; D. Amidei; K. Anikeev; J. Antos; G. Apollinari; T. Arisawa; T. Asakawa; W. Ashmanskas; F. Azfar; P. Azzi-Bacchetta; N. Bacchetta; M. W. Bailey; S. Bailey; P. De Barbaro; A. Barbaro-Galtieri; V. E. Barnes; B. A. Barnett; S. Baroiant; M. Barone; G. Bauer; F. Bedeschi; S. Belforte; W. H. Bell; G. Bellettini; J. Bellinger; D. Benjamin; J. Bensinger; A. Beretvas; J. P. Berge; J. Berryhill; B. Bevensee; A. Bhatti; M. Binkley; D. Bisello; M. Bishai; R. E. Blair; C. Blocker; K. Bloom; B. Blumenfeld; S. R. Blusk; A. Bocci; A. Bodek; W. Bokhari; G. Bolla; Y. Bonushkin; D. Bortoletto; J. Boudreau; A. Brandl; S. Van Den Brink; C. Bromberg; M. Brozovic; N. Bruner; E. Buckley-Geer; J. Budagov; H. S. Budd; K. Burkett; G. Busetto; A. Byon-Wagner; K. L. Byrum; P. Calafiura; M. Campbell; W. Carithers; J. Carlson; D. Carlsmith; W. Caskey; J. Cassada; A. Castro; D. Cauz; A. Cerri; A. W. Chan; P. S. Chang; P. T. Chang; J. Chapman; C. Chen; Y. C. Chen; M. T. Cheng; M. Chertok; G. Chiarelli; I. Chirikov-Zorin; G. Chlachidze; F. Chlebana; L. Christofek; M. L. Chu; Y. S. Chung; C. I. Ciobanu; A. G. Clark; A. Connolly; J. Conway; M. Cordelli; J. Cranshaw; D. Cronin-Hennessy; R. Cropp; R. Culbertson; D. Dagenhart; S. D'Auria

doi:10.1103/PhysRevD.65.012003

Cross section and heavy quark composition of γ+μ events produced in pp̄ collisions

T. Affolder, H. Akimoto, A. Akopian, M. G. Albrow, P. Amaral, D. Amidei, K. Anikeev, J. Antos, G. Apollinari, T. Arisawa, T. Asakawa, W. Ashmanskas, F. Azfar, P. Azzi-Bacchetta, N. Bacchetta, M. W. Bailey, S. Bailey, P. De Barbaro, A. Barbaro-Galtieri, V. E. BarnesB. A. Barnett, S. Baroiant, M. Barone, G. Bauer, F. Bedeschi, S. Belforte, W. H. Bell, G. Bellettini, J. Bellinger, D. Benjamin, J. Bensinger, A. Beretvas, J. P. Berge, J. Berryhill, B. Bevensee, A. Bhatti, M. Binkley, D. Bisello, M. Bishai, R. E. Blair, C. Blocker, K. Bloom, B. Blumenfeld, S. R. Blusk, A. Bocci, A. Bodek, W. Bokhari, G. Bolla, Y. Bonushkin, D. Bortoletto, J. Boudreau, A. Brandl, S. Van Den Brink, C. Bromberg, M. Brozovic, N. Bruner, E. Buckley-Geer, J. Budagov, H. S. Budd, K. Burkett, G. Busetto, A. Byon-Wagner, K. L. Byrum, P. Calafiura, M. Campbell, W. Carithers, J. Carlson, D. Carlsmith, W. Caskey, J. Cassada, A. Castro, D. Cauz, A. Cerri, A. W. Chan, P. S. Chang, P. T. Chang, J. Chapman, C. Chen, Y. C. Chen, M. T. Cheng, M. Chertok, G. Chiarelli, I. Chirikov-Zorin, G. Chlachidze, F. Chlebana, L. Christofek, M. L. Chu, Y. S. Chung, C. I. Ciobanu, A. G. Clark, A. Connolly, J. Conway, M. Cordelli, J. Cranshaw, D. Cronin-Hennessy, R. Cropp, R. Culbertson, D. Dagenhart, S. D'Auria

Waseda University Senior High School

Research output: Contribution to journal › Article

7 Citations (Scopus)

Abstract

We present a measurement of the cross section and the first measurement of the heavy flavor content of associated direct photon + muon events produced in hadronic collisions. These measurements come from a sample of 1.8 TeV pp̄ collisions recorded with the Collider Detector at Fermilab. Quantum chromodynamics (QCD) predicts that these events are primarily due to the Compton scattering process cg→cγ, with the final-state charm quark producing a muon. The cross section for events with a photon transverse momentum between 12 and 40 GeV/c is measured to be 46.8±6.3±7.5 pb, which is two standard deviations below the most recent theoretical calculation. A significant fraction of the events in the sample contain a final-state bottom quark. The ratio of charm to bottom production is measured to be 2.4±1.2, in good agreement with QCD models.

Original language	English
Article number	012003
Journal	Physical Review D
Volume	65
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevD.65.012003
Publication status	Published - 2002 Dec 1

ASJC Scopus subject areas

Nuclear and High Energy Physics
Physics and Astronomy (miscellaneous)

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Affolder, T., Akimoto, H., Akopian, A., Albrow, M. G., Amaral, P., Amidei, D., Anikeev, K., Antos, J., Apollinari, G., Arisawa, T., Asakawa, T., Ashmanskas, W., Azfar, F., Azzi-Bacchetta, P., Bacchetta, N., Bailey, M. W., Bailey, S., De Barbaro, P., Barbaro-Galtieri, A., ... D'Auria, S. (2002). Cross section and heavy quark composition of γ+μ events produced in pp̄ collisions. Physical Review D, 65(1), [012003]. https://doi.org/10.1103/PhysRevD.65.012003

Cross section and heavy quark composition of γ+μ events produced in pp̄ collisions. / Affolder, T.; Akimoto, H.; Akopian, A.; Albrow, M. G.; Amaral, P.; Amidei, D.; Anikeev, K.; Antos, J.; Apollinari, G.; Arisawa, T.; Asakawa, T.; Ashmanskas, W.; Azfar, F.; Azzi-Bacchetta, P.; Bacchetta, N.; Bailey, M. W.; Bailey, S.; De Barbaro, P.; Barbaro-Galtieri, A.; Barnes, V. E.; Barnett, B. A.; Baroiant, S.; Barone, M.; Bauer, G.; Bedeschi, F.; Belforte, S.; Bell, W. H.; Bellettini, G.; Bellinger, J.; Benjamin, D.; Bensinger, J.; Beretvas, A.; Berge, J. P.; Berryhill, J.; Bevensee, B.; Bhatti, A.; Binkley, M.; Bisello, D.; Bishai, M.; Blair, R. E.; Blocker, C.; Bloom, K.; Blumenfeld, B.; Blusk, S. R.; Bocci, A.; Bodek, A.; Bokhari, W.; Bolla, G.; Bonushkin, Y.; Bortoletto, D.; Boudreau, J.; Brandl, A.; Van Den Brink, S.; Bromberg, C.; Brozovic, M.; Bruner, N.; Buckley-Geer, E.; Budagov, J.; Budd, H. S.; Burkett, K.; Busetto, G.; Byon-Wagner, A.; Byrum, K. L.; Calafiura, P.; Campbell, M.; Carithers, W.; Carlson, J.; Carlsmith, D.; Caskey, W.; Cassada, J.; Castro, A.; Cauz, D.; Cerri, A.; Chan, A. W.; Chang, P. S.; Chang, P. T.; Chapman, J.; Chen, C.; Chen, Y. C.; Cheng, M. T.; Chertok, M.; Chiarelli, G.; Chirikov-Zorin, I.; Chlachidze, G.; Chlebana, F.; Christofek, L.; Chu, M. L.; Chung, Y. S.; Ciobanu, C. I.; Clark, A. G.; Connolly, A.; Conway, J.; Cordelli, M.; Cranshaw, J.; Cronin-Hennessy, D.; Cropp, R.; Culbertson, R.; Dagenhart, D.; D'Auria, S.

In: Physical Review D, Vol. 65, No. 1, 012003, 01.12.2002.

Research output: Contribution to journal › Article

Affolder, T, Akimoto, H, Akopian, A, Albrow, MG, Amaral, P, Amidei, D, Anikeev, K, Antos, J, Apollinari, G, Arisawa, T, Asakawa, T, Ashmanskas, W, Azfar, F, Azzi-Bacchetta, P, Bacchetta, N, Bailey, MW, Bailey, S, De Barbaro, P, Barbaro-Galtieri, A, Barnes, VE, Barnett, BA, Baroiant, S, Barone, M, Bauer, G, Bedeschi, F, Belforte, S, Bell, WH, Bellettini, G, Bellinger, J, Benjamin, D, Bensinger, J, Beretvas, A, Berge, JP, Berryhill, J, Bevensee, B, Bhatti, A, Binkley, M, Bisello, D, Bishai, M, Blair, RE, Blocker, C, Bloom, K, Blumenfeld, B, Blusk, SR, Bocci, A, Bodek, A, Bokhari, W, Bolla, G, Bonushkin, Y, Bortoletto, D, Boudreau, J, Brandl, A, Van Den Brink, S, Bromberg, C, Brozovic, M, Bruner, N, Buckley-Geer, E, Budagov, J, Budd, HS, Burkett, K, Busetto, G, Byon-Wagner, A, Byrum, KL, Calafiura, P, Campbell, M, Carithers, W, Carlson, J, Carlsmith, D, Caskey, W, Cassada, J, Castro, A, Cauz, D, Cerri, A, Chan, AW, Chang, PS, Chang, PT, Chapman, J, Chen, C, Chen, YC, Cheng, MT, Chertok, M, Chiarelli, G, Chirikov-Zorin, I, Chlachidze, G, Chlebana, F, Christofek, L, Chu, ML, Chung, YS, Ciobanu, CI, Clark, AG, Connolly, A, Conway, J, Cordelli, M, Cranshaw, J, Cronin-Hennessy, D, Cropp, R, Culbertson, R, Dagenhart, D & D'Auria, S 2002, 'Cross section and heavy quark composition of γ+μ events produced in pp̄ collisions', Physical Review D, vol. 65, no. 1, 012003. https://doi.org/10.1103/PhysRevD.65.012003

Affolder, T. ; Akimoto, H. ; Akopian, A. ; Albrow, M. G. ; Amaral, P. ; Amidei, D. ; Anikeev, K. ; Antos, J. ; Apollinari, G. ; Arisawa, T. ; Asakawa, T. ; Ashmanskas, W. ; Azfar, F. ; Azzi-Bacchetta, P. ; Bacchetta, N. ; Bailey, M. W. ; Bailey, S. ; De Barbaro, P. ; Barbaro-Galtieri, A. ; Barnes, V. E. ; Barnett, B. A. ; Baroiant, S. ; Barone, M. ; Bauer, G. ; Bedeschi, F. ; Belforte, S. ; Bell, W. H. ; Bellettini, G. ; Bellinger, J. ; Benjamin, D. ; Bensinger, J. ; Beretvas, A. ; Berge, J. P. ; Berryhill, J. ; Bevensee, B. ; Bhatti, A. ; Binkley, M. ; Bisello, D. ; Bishai, M. ; Blair, R. E. ; Blocker, C. ; Bloom, K. ; Blumenfeld, B. ; Blusk, S. R. ; Bocci, A. ; Bodek, A. ; Bokhari, W. ; Bolla, G. ; Bonushkin, Y. ; Bortoletto, D. ; Boudreau, J. ; Brandl, A. ; Van Den Brink, S. ; Bromberg, C. ; Brozovic, M. ; Bruner, N. ; Buckley-Geer, E. ; Budagov, J. ; Budd, H. S. ; Burkett, K. ; Busetto, G. ; Byon-Wagner, A. ; Byrum, K. L. ; Calafiura, P. ; Campbell, M. ; Carithers, W. ; Carlson, J. ; Carlsmith, D. ; Caskey, W. ; Cassada, J. ; Castro, A. ; Cauz, D. ; Cerri, A. ; Chan, A. W. ; Chang, P. S. ; Chang, P. T. ; Chapman, J. ; Chen, C. ; Chen, Y. C. ; Cheng, M. T. ; Chertok, M. ; Chiarelli, G. ; Chirikov-Zorin, I. ; Chlachidze, G. ; Chlebana, F. ; Christofek, L. ; Chu, M. L. ; Chung, Y. S. ; Ciobanu, C. I. ; Clark, A. G. ; Connolly, A. ; Conway, J. ; Cordelli, M. ; Cranshaw, J. ; Cronin-Hennessy, D. ; Cropp, R. ; Culbertson, R. ; Dagenhart, D. ; D'Auria, S. / Cross section and heavy quark composition of γ+μ events produced in pp̄ collisions. In: Physical Review D. 2002 ; Vol. 65, No. 1.

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title = "Cross section and heavy quark composition of γ+μ events produced in p{\=p} collisions",

abstract = "We present a measurement of the cross section and the first measurement of the heavy flavor content of associated direct photon + muon events produced in hadronic collisions. These measurements come from a sample of 1.8 TeV p{\=p} collisions recorded with the Collider Detector at Fermilab. Quantum chromodynamics (QCD) predicts that these events are primarily due to the Compton scattering process cg→cγ, with the final-state charm quark producing a muon. The cross section for events with a photon transverse momentum between 12 and 40 GeV/c is measured to be 46.8±6.3±7.5 pb, which is two standard deviations below the most recent theoretical calculation. A significant fraction of the events in the sample contain a final-state bottom quark. The ratio of charm to bottom production is measured to be 2.4±1.2, in good agreement with QCD models.",

author = "T. Affolder and H. Akimoto and A. Akopian and Albrow, {M. G.} and P. Amaral and D. Amidei and K. Anikeev and J. Antos and G. Apollinari and T. Arisawa and T. Asakawa and W. Ashmanskas and F. Azfar and P. Azzi-Bacchetta and N. Bacchetta and Bailey, {M. W.} and S. Bailey and {De Barbaro}, P. and A. Barbaro-Galtieri and Barnes, {V. E.} and Barnett, {B. A.} and S. Baroiant and M. Barone and G. Bauer and F. Bedeschi and S. Belforte and Bell, {W. H.} and G. Bellettini and J. Bellinger and D. Benjamin and J. Bensinger and A. Beretvas and Berge, {J. P.} and J. Berryhill and B. Bevensee and A. Bhatti and M. Binkley and D. Bisello and M. Bishai and Blair, {R. E.} and C. Blocker and K. Bloom and B. Blumenfeld and Blusk, {S. R.} and A. Bocci and A. Bodek and W. Bokhari and G. Bolla and Y. Bonushkin and D. Bortoletto and J. Boudreau and A. Brandl and {Van Den Brink}, S. and C. Bromberg and M. Brozovic and N. Bruner and E. Buckley-Geer and J. Budagov and Budd, {H. S.} and K. Burkett and G. Busetto and A. Byon-Wagner and Byrum, {K. L.} and P. Calafiura and M. Campbell and W. Carithers and J. Carlson and D. Carlsmith and W. Caskey and J. Cassada and A. Castro and D. Cauz and A. Cerri and Chan, {A. W.} and Chang, {P. S.} and Chang, {P. T.} and J. Chapman and C. Chen and Chen, {Y. C.} and Cheng, {M. T.} and M. Chertok and G. Chiarelli and I. Chirikov-Zorin and G. Chlachidze and F. Chlebana and L. Christofek and Chu, {M. L.} and Chung, {Y. S.} and Ciobanu, {C. I.} and Clark, {A. G.} and A. Connolly and J. Conway and M. Cordelli and J. Cranshaw and D. Cronin-Hennessy and R. Cropp and R. Culbertson and D. Dagenhart and S. D'Auria",

year = "2002",

month = dec,

day = "1",

doi = "10.1103/PhysRevD.65.012003",

language = "English",

volume = "65",

journal = "Physical Review D - Particles, Fields, Gravitation and Cosmology",

issn = "1550-7998",

number = "1",

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TY - JOUR

T1 - Cross section and heavy quark composition of γ+μ events produced in pp̄ collisions

AU - Affolder, T.

AU - Akimoto, H.

AU - Akopian, A.

AU - Albrow, M. G.

AU - Amaral, P.

AU - Amidei, D.

AU - Anikeev, K.

AU - Antos, J.

AU - Apollinari, G.

AU - Arisawa, T.

AU - Asakawa, T.

AU - Ashmanskas, W.

AU - Azfar, F.

AU - Azzi-Bacchetta, P.

AU - Bacchetta, N.

AU - Bailey, M. W.

AU - Bailey, S.

AU - De Barbaro, P.

AU - Barbaro-Galtieri, A.

AU - Barnes, V. E.

AU - Barnett, B. A.

AU - Baroiant, S.

AU - Barone, M.

AU - Bauer, G.

AU - Bedeschi, F.

AU - Belforte, S.

AU - Bell, W. H.

AU - Bellettini, G.

AU - Bellinger, J.

AU - Benjamin, D.

AU - Bensinger, J.

AU - Beretvas, A.

AU - Berge, J. P.

AU - Berryhill, J.

AU - Bevensee, B.

AU - Bhatti, A.

AU - Binkley, M.

AU - Bisello, D.

AU - Bishai, M.

AU - Blair, R. E.

AU - Blocker, C.

AU - Bloom, K.

AU - Blumenfeld, B.

AU - Blusk, S. R.

AU - Bocci, A.

AU - Bodek, A.

AU - Bokhari, W.

AU - Bolla, G.

AU - Bonushkin, Y.

AU - Bortoletto, D.

AU - Boudreau, J.

AU - Brandl, A.

AU - Van Den Brink, S.

AU - Bromberg, C.

AU - Brozovic, M.

AU - Bruner, N.

AU - Buckley-Geer, E.

AU - Budagov, J.

AU - Budd, H. S.

AU - Burkett, K.

AU - Busetto, G.

AU - Byon-Wagner, A.

AU - Byrum, K. L.

AU - Calafiura, P.

AU - Campbell, M.

AU - Carithers, W.

AU - Carlson, J.

AU - Carlsmith, D.

AU - Caskey, W.

AU - Cassada, J.

AU - Castro, A.

AU - Cauz, D.

AU - Cerri, A.

AU - Chan, A. W.

AU - Chang, P. S.

AU - Chang, P. T.

AU - Chapman, J.

AU - Chen, C.

AU - Chen, Y. C.

AU - Cheng, M. T.

AU - Chertok, M.

AU - Chiarelli, G.

AU - Chirikov-Zorin, I.

AU - Chlachidze, G.

AU - Chlebana, F.

AU - Christofek, L.

AU - Chu, M. L.

AU - Chung, Y. S.

AU - Ciobanu, C. I.

AU - Clark, A. G.

AU - Connolly, A.

AU - Conway, J.

AU - Cordelli, M.

AU - Cranshaw, J.

AU - Cronin-Hennessy, D.

AU - Cropp, R.

AU - Culbertson, R.

AU - Dagenhart, D.

AU - D'Auria, S.

PY - 2002/12/1

Y1 - 2002/12/1

N2 - We present a measurement of the cross section and the first measurement of the heavy flavor content of associated direct photon + muon events produced in hadronic collisions. These measurements come from a sample of 1.8 TeV pp̄ collisions recorded with the Collider Detector at Fermilab. Quantum chromodynamics (QCD) predicts that these events are primarily due to the Compton scattering process cg→cγ, with the final-state charm quark producing a muon. The cross section for events with a photon transverse momentum between 12 and 40 GeV/c is measured to be 46.8±6.3±7.5 pb, which is two standard deviations below the most recent theoretical calculation. A significant fraction of the events in the sample contain a final-state bottom quark. The ratio of charm to bottom production is measured to be 2.4±1.2, in good agreement with QCD models.

AB - We present a measurement of the cross section and the first measurement of the heavy flavor content of associated direct photon + muon events produced in hadronic collisions. These measurements come from a sample of 1.8 TeV pp̄ collisions recorded with the Collider Detector at Fermilab. Quantum chromodynamics (QCD) predicts that these events are primarily due to the Compton scattering process cg→cγ, with the final-state charm quark producing a muon. The cross section for events with a photon transverse momentum between 12 and 40 GeV/c is measured to be 46.8±6.3±7.5 pb, which is two standard deviations below the most recent theoretical calculation. A significant fraction of the events in the sample contain a final-state bottom quark. The ratio of charm to bottom production is measured to be 2.4±1.2, in good agreement with QCD models.

UR - http://www.scopus.com/inward/record.url?scp=4243914756&partnerID=8YFLogxK

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U2 - 10.1103/PhysRevD.65.012003

DO - 10.1103/PhysRevD.65.012003

M3 - Article

AN - SCOPUS:4243914756

VL - 65

JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

SN - 1550-7998

IS - 1

M1 - 012003

ER -