Charged-Particle Multiplicity pp̄ Collisions at √s = 1.8 TeV

CDF Collaboration

doi:10.1103/PhysRevLett.87.211804

Charged-Particle Multiplicity pp̄ Collisions at √s = 1.8 TeV

CDF Collaboration

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

We report on a measurement of the mean charged-particle multiplicity of jets in dijet events with dijet masses in the range 80-630 GeV/c², produced at the Tevatron in pp̄ collisions with √s = 1.8 TeV and recorded by the Collider Detector at Fermilab. The data are fit to perturbative-QCD calculations carried out in the framework of the modified leading log approximation and the hypothesis of local parton-hadron duality. The fit yields values for two parameters in that framework: the ratio of parton multiplicities in gluon and quark jets, γ≡N^g-jet _partons/N^q-jet _partons = 1.7±0.3, and the ratio of the number of charged hadrons to the number of partons in a jet, K^charged _LPHD≡N^charged _hadrons/N_partons = 0.57±0.11.

Original language	English
Pages (from-to)	211804
Number of pages	1
Journal	Physical Review Letters
Volume	87
Issue number	21
DOIs	https://doi.org/10.1103/PhysRevLett.87.211804
Publication status	Published - 2001 Jan 1
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1103/PhysRevLett.87.211804

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@article{ae55b80caeae493e9b093bb6f15ff551,

title = "Charged-Particle Multiplicity p{\=p} Collisions at √s = 1.8 TeV",

abstract = "We report on a measurement of the mean charged-particle multiplicity of jets in dijet events with dijet masses in the range 80-630 GeV/c2, produced at the Tevatron in p{\=p} collisions with √s = 1.8 TeV and recorded by the Collider Detector at Fermilab. The data are fit to perturbative-QCD calculations carried out in the framework of the modified leading log approximation and the hypothesis of local parton-hadron duality. The fit yields values for two parameters in that framework: the ratio of parton multiplicities in gluon and quark jets, γ≡Ng-jet partons/Nq-jet partons = 1.7±0.3, and the ratio of the number of charged hadrons to the number of partons in a jet, Kcharged LPHD≡Ncharged hadrons/Npartons = 0.57±0.11.",

author = "{CDF Collaboration} and 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 A. Artikov and T. Asakawa and W. Ashmanskas and F. Azfar and P. Azzi-Bacchetta and N. Bacchetta and H. Bachacou 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 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 M. Tanaka",

year = "2001",

month = jan,

day = "1",

doi = "10.1103/PhysRevLett.87.211804",

language = "English",

volume = "87",

pages = "211804",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "21",

}

TY - JOUR

T1 - Charged-Particle Multiplicity pp̄ Collisions at √s = 1.8 TeV

AU - CDF Collaboration

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 - Artikov, A.

AU - Asakawa, T.

AU - Ashmanskas, W.

AU - Azfar, F.

AU - Azzi-Bacchetta, P.

AU - Bacchetta, N.

AU - Bachacou, H.

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 - 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 - Tanaka, M.

PY - 2001/1/1

Y1 - 2001/1/1

N2 - We report on a measurement of the mean charged-particle multiplicity of jets in dijet events with dijet masses in the range 80-630 GeV/c2, produced at the Tevatron in pp̄ collisions with √s = 1.8 TeV and recorded by the Collider Detector at Fermilab. The data are fit to perturbative-QCD calculations carried out in the framework of the modified leading log approximation and the hypothesis of local parton-hadron duality. The fit yields values for two parameters in that framework: the ratio of parton multiplicities in gluon and quark jets, γ≡Ng-jet partons/Nq-jet partons = 1.7±0.3, and the ratio of the number of charged hadrons to the number of partons in a jet, Kcharged LPHD≡Ncharged hadrons/Npartons = 0.57±0.11.

AB - We report on a measurement of the mean charged-particle multiplicity of jets in dijet events with dijet masses in the range 80-630 GeV/c2, produced at the Tevatron in pp̄ collisions with √s = 1.8 TeV and recorded by the Collider Detector at Fermilab. The data are fit to perturbative-QCD calculations carried out in the framework of the modified leading log approximation and the hypothesis of local parton-hadron duality. The fit yields values for two parameters in that framework: the ratio of parton multiplicities in gluon and quark jets, γ≡Ng-jet partons/Nq-jet partons = 1.7±0.3, and the ratio of the number of charged hadrons to the number of partons in a jet, Kcharged LPHD≡Ncharged hadrons/Npartons = 0.57±0.11.

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UR - http://www.scopus.com/inward/citedby.url?scp=85037237788&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.87.211804

DO - 10.1103/PhysRevLett.87.211804

M3 - Article

AN - SCOPUS:85037237788

SN - 0031-9007

VL - 87

SP - 211804

JO - Physical Review Letters

JF - Physical Review Letters

IS - 21

ER -

Charged-Particle Multiplicity pp̄ Collisions at √s = 1.8 TeV

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