Observation of hadronic tt¯events with the collider detector at fermilab

CDF Collaboration

Research output: Contribution to journalArticle

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Abstract

We observe hadronic W decays in tt¯→W(→ lv)+≥4 jet events using a 109 pb−1data sample of pp¯collisions at s=1.8TeV collected with the Collider Detector at Fermilab. A peak in the dijet invariant mass distribution is obtained that is consistent with W decay and inconsistent with the background prediction by 3.3 σ.From this peak we measure the W mass to be 77.2±4.6(stat+syst)GeV/c2. This result demonstrates the presence of a second W boson in tt¯candidates in the W(→ lv)+≥jet channel.

Original languageEnglish
Pages (from-to)5720-5725
Number of pages6
JournalPhysical Review Letters
Volume80
Issue number26
DOIs
Publication statusPublished - 1998 Jan 1

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detectors
decay
mass distribution
bosons
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ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Observation of hadronic tt¯events with the collider detector at fermilab. / CDF Collaboration.

In: Physical Review Letters, Vol. 80, No. 26, 01.01.1998, p. 5720-5725.

Research output: Contribution to journalArticle

CDF Collaboration. / Observation of hadronic tt¯events with the collider detector at fermilab. In: Physical Review Letters. 1998 ; Vol. 80, No. 26. pp. 5720-5725.
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abstract = "We observe hadronic W decays in tt¯→W(→ lv)+≥4 jet events using a 109 pb−1data sample of pp¯collisions at s=1.8TeV collected with the Collider Detector at Fermilab. A peak in the dijet invariant mass distribution is obtained that is consistent with W decay and inconsistent with the background prediction by 3.3 σ.From this peak we measure the W mass to be 77.2±4.6(stat+syst)GeV/c2. This result demonstrates the presence of a second W boson in tt¯candidates in the W(→ lv)+≥jet channel.",
author = "{CDF Collaboration} and F. Abe and H. Akimoto and A. Akopian and Albrow, {M. G.} and A. Amadon and Amendolia, {S. R.} and D. Amidei and J. Antos and S. Aota and G. Apollinari and Tetsuo Arisawa and T. Asakawa and W. Ashmanskas and M. Atac and P. Azzi-Bacchetta and N. Bacchetta and S. Bagdasarov and Bailey, {M. W.} and {de Barbaro}, P. and Barnes, {V. E.} and Barnett, {B. A.} and M. Barone and G. Bauer and T. Baumann and F. Bedeschi and S. Behrends and S. Belforte and G. Bellettini and J. Bellinger and D. Benjamin and J. Bensinger and A. Beretvas and Berge, {J. P.} and J. Berryhill and S. Bertolucci and S. Bettelli and B. Bevensee and A. Bhatti and K. Biery and C. Bigongiari and M. Binkley and D. Bisello and Blair, {R. E.} and C. Blocker and S. Blusk and A. Bodek and W. Bokhari and G. Bolla and Y. Bonushkin and D. Bortoletto",
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T1 - Observation of hadronic tt¯events with the collider detector at fermilab

AU - CDF Collaboration

AU - Abe, F.

AU - Akimoto, H.

AU - Akopian, A.

AU - Albrow, M. G.

AU - Amadon, A.

AU - Amendolia, S. R.

AU - Amidei, D.

AU - Antos, J.

AU - Aota, S.

AU - Apollinari, G.

AU - Arisawa, Tetsuo

AU - Asakawa, T.

AU - Ashmanskas, W.

AU - Atac, M.

AU - Azzi-Bacchetta, P.

AU - Bacchetta, N.

AU - Bagdasarov, S.

AU - Bailey, M. W.

AU - de Barbaro, P.

AU - Barnes, V. E.

AU - Barnett, B. A.

AU - Barone, M.

AU - Bauer, G.

AU - Baumann, T.

AU - Bedeschi, F.

AU - Behrends, S.

AU - Belforte, S.

AU - Bellettini, G.

AU - Bellinger, J.

AU - Benjamin, D.

AU - Bensinger, J.

AU - Beretvas, A.

AU - Berge, J. P.

AU - Berryhill, J.

AU - Bertolucci, S.

AU - Bettelli, S.

AU - Bevensee, B.

AU - Bhatti, A.

AU - Biery, K.

AU - Bigongiari, C.

AU - Binkley, M.

AU - Bisello, D.

AU - Blair, R. E.

AU - Blocker, C.

AU - Blusk, S.

AU - Bodek, A.

AU - Bokhari, W.

AU - Bolla, G.

AU - Bonushkin, Y.

AU - Bortoletto, D.

PY - 1998/1/1

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N2 - We observe hadronic W decays in tt¯→W(→ lv)+≥4 jet events using a 109 pb−1data sample of pp¯collisions at s=1.8TeV collected with the Collider Detector at Fermilab. A peak in the dijet invariant mass distribution is obtained that is consistent with W decay and inconsistent with the background prediction by 3.3 σ.From this peak we measure the W mass to be 77.2±4.6(stat+syst)GeV/c2. This result demonstrates the presence of a second W boson in tt¯candidates in the W(→ lv)+≥jet channel.

AB - We observe hadronic W decays in tt¯→W(→ lv)+≥4 jet events using a 109 pb−1data sample of pp¯collisions at s=1.8TeV collected with the Collider Detector at Fermilab. A peak in the dijet invariant mass distribution is obtained that is consistent with W decay and inconsistent with the background prediction by 3.3 σ.From this peak we measure the W mass to be 77.2±4.6(stat+syst)GeV/c2. This result demonstrates the presence of a second W boson in tt¯candidates in the W(→ lv)+≥jet channel.

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