Measurement of the differential γ+2b-jet cross section and the ratio σ(γ+2b-jets)/σ(γ+b-jet) in pp collisions at √s=1.96TeV

D0 Collaboration

doi:10.1016/j.physletb.2014.09.007

Measurement of the differential γ+2b-jet cross section and the ratio σ(γ+2b-jets)/σ(γ+b-jet) in pp collisions at √s=1.96TeV

D0 Collaboration

Physics

Centro Brasileiro de Pesquisas Físicas
Joint Institute for Nuclear Research
University of Oklahoma
Tata Institute of Fundamental Research
University of Illinois at Chicago
Florida State University
University of Manchester
Nuclear Physics Institute
University of Michigan, Ann Arbor
Louisiana Tech University
Czech Technical University in Prague
Universidad de los Andes Colombia
Université Blaise Pascal, Clermont-Ferrand
Fermi National Accelerator Laboratory
University of Virginia
Northeastern University
University of Kansas
CEA Saclay
Universidade do Estado do Rio de Janeiro
Panjab University
Université Pierre et Marie Curie
University of Freiburg
Lancaster University
Imperial College London
University of Mississippi
Northern Illinois University
University of Nebraska-Lincoln
Stony Brook University
Lomonosov Moscow State University
Kyiv National Taras Shevchenko University
University of Texas at Arlington
University of Göttingen
Michigan State University

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

8 Scopus citations

Abstract

We present the first measurements of the differential cross section dσ/dpTγ for the production of an isolated photon in association with at least two b-quark jets. The measurements consider photons with rapidities |y^γ|<1.0 and transverse momenta 30<pTγ<200GeV. The b-quark jets are required to have pTjet>15GeV and |y^jet|<1.5. The ratio of differential production cross sections for γ+2 b-jets to γ+b-jet as a function of pTγ is also presented. The results are based on the proton-antiproton collision data at s=1.96TeV collected with the D0 detector at the Fermilab Tevatron Collider. The measured cross sections and their ratios are compared to the next-to-leading order perturbative QCD calculations as well as predictions based on the k_T-factorization approach and those from the sherpa and pythia Monte Carlo event generators.

Original language	English
Pages (from-to)	357-365
Number of pages	9
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	737
DOIs	https://doi.org/10.1016/j.physletb.2014.09.007
State	Published - Sep 1 2014

Access to Document

10.1016/j.physletb.2014.09.007

Cite this

@article{da845c700f804801a1e53088ec723b9c,

title = "Measurement of the differential γ+2b-jet cross section and the ratio σ(γ+2b-jets)/σ(γ+b-jet) in pp collisions at √s=1.96TeV",

abstract = "We present the first measurements of the differential cross section dσ/dpTγ for the production of an isolated photon in association with at least two b-quark jets. The measurements consider photons with rapidities |yγ|<1.0 and transverse momenta 3015GeV and |yjet|<1.5. The ratio of differential production cross sections for γ+2 b-jets to γ+b-jet as a function of pTγ is also presented. The results are based on the proton-antiproton collision data at s=1.96TeV collected with the D0 detector at the Fermilab Tevatron Collider. The measured cross sections and their ratios are compared to the next-to-leading order perturbative QCD calculations as well as predictions based on the kT-factorization approach and those from the sherpa and pythia Monte Carlo event generators.",

author = "\{D0 Collaboration\} and Abazov, \{V. M.\} and B. Abbott and Acharya, \{B. S.\} and M. Adams and T. Adams and Agnew, \{J. P.\} and Alexeev, \{G. D.\} and G. Alkhazov and A. Alton and A. Askew and S. Atkins and K. Augsten and C. Avila and F. Badaud and L. Bagby and B. Baldin and Bandurin, \{D. V.\} and S. Banerjee and E. Barberis and P. Baringer and Bartlett, \{J. F.\} and U. Bassler and V. Bazterra and A. Bean and M. Begalli and L. Bellantoni and Beri, \{S. B.\} and G. Bernardi and R. Bernhard and I. Bertram and M. Besan{\c c}on and R. Beuselinck and Bhat, \{P. C.\} and S. Bhatia and V. Bhatnagar and G. Blazey and S. Blessing and K. Bloom and A. Boehnlein and D. Boline and Boos, \{E. E.\} and G. Borissov and M. Borysova and A. Brandt and O. Brandt and R. Brock and A. Bross and D. Brown and I. Iashvili and A. Kharchilava",

note = "Publisher Copyright: {\textcopyright} 2014.",

year = "2014",

month = sep,

day = "1",

doi = "10.1016/j.physletb.2014.09.007",

language = "English",

volume = "737",

pages = "357--365",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Measurement of the differential γ+2b-jet cross section and the ratio σ(γ+2b-jets)/σ(γ+b-jet) in pp collisions at √s=1.96TeV

AU - D0 Collaboration

AU - Abazov, V. M.

AU - Abbott, B.

AU - Acharya, B. S.

AU - Adams, M.

AU - Adams, T.

AU - Agnew, J. P.

AU - Alexeev, G. D.

AU - Alkhazov, G.

AU - Alton, A.

AU - Askew, A.

AU - Atkins, S.

AU - Augsten, K.

AU - Avila, C.

AU - Badaud, F.

AU - Bagby, L.

AU - Baldin, B.

AU - Bandurin, D. V.

AU - Banerjee, S.

AU - Barberis, E.

AU - Baringer, P.

AU - Bartlett, J. F.

AU - Bassler, U.

AU - Bazterra, V.

AU - Bean, A.

AU - Begalli, M.

AU - Bellantoni, L.

AU - Beri, S. B.

AU - Bernardi, G.

AU - Bernhard, R.

AU - Bertram, I.

AU - Besançon, M.

AU - Beuselinck, R.

AU - Bhat, P. C.

AU - Bhatia, S.

AU - Bhatnagar, V.

AU - Blazey, G.

AU - Blessing, S.

AU - Bloom, K.

AU - Boehnlein, A.

AU - Boline, D.

AU - Boos, E. E.

AU - Borissov, G.

AU - Borysova, M.

AU - Brandt, A.

AU - Brandt, O.

AU - Brock, R.

AU - Bross, A.

AU - Brown, D.

AU - Iashvili, I.

AU - Kharchilava, A.

PY - 2014/9/1

Y1 - 2014/9/1

N2 - We present the first measurements of the differential cross section dσ/dpTγ for the production of an isolated photon in association with at least two b-quark jets. The measurements consider photons with rapidities |yγ|<1.0 and transverse momenta 3015GeV and |yjet|<1.5. The ratio of differential production cross sections for γ+2 b-jets to γ+b-jet as a function of pTγ is also presented. The results are based on the proton-antiproton collision data at s=1.96TeV collected with the D0 detector at the Fermilab Tevatron Collider. The measured cross sections and their ratios are compared to the next-to-leading order perturbative QCD calculations as well as predictions based on the kT-factorization approach and those from the sherpa and pythia Monte Carlo event generators.

AB - We present the first measurements of the differential cross section dσ/dpTγ for the production of an isolated photon in association with at least two b-quark jets. The measurements consider photons with rapidities |yγ|<1.0 and transverse momenta 3015GeV and |yjet|<1.5. The ratio of differential production cross sections for γ+2 b-jets to γ+b-jet as a function of pTγ is also presented. The results are based on the proton-antiproton collision data at s=1.96TeV collected with the D0 detector at the Fermilab Tevatron Collider. The measured cross sections and their ratios are compared to the next-to-leading order perturbative QCD calculations as well as predictions based on the kT-factorization approach and those from the sherpa and pythia Monte Carlo event generators.

UR - https://www.scopus.com/pages/publications/84909942527

U2 - 10.1016/j.physletb.2014.09.007

DO - 10.1016/j.physletb.2014.09.007

M3 - Article

AN - SCOPUS:84909942527

SN - 0370-2693

VL - 737

SP - 357

EP - 365

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

ER -

Measurement of the differential γ+2b-jet cross section and the ratio σ(γ+2b-jets)/σ(γ+b-jet) in pp collisions at √s=1.96TeV

Abstract

Access to Document

Other files and links

Fingerprint

Cite this