Measurement of dijet k(T) in p-Pb collisions at root s(NN)=5.02 TeV

ALICE Collaboration

doi:10.1016/j.physletb.2015.05.033

Measurement of dijet k(T) in p-Pb collisions at root s(NN)=5.02 TeV

ALICE Collaboration

Dept of Physics

Politecn Torino
Czech Technical University in Prague
Czech Academy of Sciences
Panjab University
CERN
Istituto Nazionale di Fisica Nucleare (INFN)
Indian Institute of Technology
Variable Energy Cyclotron Ctr
Korea Institute of Science and Technology
Yale University
Utrecht University
Wayne State University
FOM National Institute for Subatomic Physics
University of Copenhagen
University of Tsukuba
Technical University of Munich
Goethe University Frankfurt
German Cancer Research Center
University of Calgary
Universidade de São Paulo
University of Zagreb
University of Jammu
University of Texas at Austin

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

Abstract

A measurement of dijet correlations in p-Pb collisions at root s(NN) = 5.02 TeV with the ALICE detector is presented. Jets are reconstructed from charged particles measured in the central tracking detectors and neutral energy deposited in the electromagnetic calorimeter. The transverse momentum of the full jet (clustered from charged and neutral constituents) and charged jet (clustered from charged particles only) is corrected event-by-event for the contribution of the underlying event, while corrections for underlying event fluctuations and finite detector resolution are applied on an inclusive basis. A projection of the dijet transverse momentum, k(Ty) = p(T,jet)(ch+ne) sin(Delta phi(dijet)) with Delta phi(dijet) the azimuthal angle between a full and charged jet and p(T,jet)(ch+ne) the transverse momentum of the full jet, is used to study nuclear matter effects in p-Pb collisions. This observable is sensitive to the acoplanarity of dijet production and its potential modificationin p-Pb collisions with respect to pp collisions. Measurements of the dijet k(Ty) as a function of the transverse momentum of the full and recoil charged jet, and the event multiplicity are presented. No significant modification of k(Ty) due to nuclear matter effects in p-Pb collisions with respect to the event multiplicity or a PYTHIA8 reference is observed. (C) 2015 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B.V.

Original language	English
Pages (from-to)	385-395
Number of pages	11
Journal	Physics Letters B
Volume	746
DOIs	https://doi.org/10.1016/j.physletb.2015.05.033
Publication status	Published - 30 Jun 2015

Funding

The ALICE Collaboration would like to thank all its engineers and technicians for their invaluable contributions to the construction of the experiment and the CERN accelerator teams for the outstanding performance of the LHC complex. The ALICE Collaboration gratefully acknowledges the resources and support provided by all Grid centers and the Worldwide LHC Computing Grid (WLCG) Collaboration.

Keywords

TRANSVERSE-MOMENTA
JET
FRAGMENTATION

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@article{43cc46839739499fb5d7785e4a0aa9b7,

title = "Measurement of dijet k(T) in p-Pb collisions at root s(NN)=5.02 TeV",

abstract = "A measurement of dijet correlations in p-Pb collisions at root s(NN) = 5.02 TeV with the ALICE detector is presented. Jets are reconstructed from charged particles measured in the central tracking detectors and neutral energy deposited in the electromagnetic calorimeter. The transverse momentum of the full jet (clustered from charged and neutral constituents) and charged jet (clustered from charged particles only) is corrected event-by-event for the contribution of the underlying event, while corrections for underlying event fluctuations and finite detector resolution are applied on an inclusive basis. A projection of the dijet transverse momentum, k(Ty) = p(T,jet)(ch+ne) sin(Delta phi(dijet)) with Delta phi(dijet) the azimuthal angle between a full and charged jet and p(T,jet)(ch+ne) the transverse momentum of the full jet, is used to study nuclear matter effects in p-Pb collisions. This observable is sensitive to the acoplanarity of dijet production and its potential modificationin p-Pb collisions with respect to pp collisions. Measurements of the dijet k(Ty) as a function of the transverse momentum of the full and recoil charged jet, and the event multiplicity are presented. No significant modification of k(Ty) due to nuclear matter effects in p-Pb collisions with respect to the event multiplicity or a PYTHIA8 reference is observed. (C) 2015 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B.V.",

keywords = "TRANSVERSE-MOMENTA, JET, FRAGMENTATION",

author = "\{ALICE Collaboration\} and J. Adam and D. Adamova and Aggarwal, \{M. M.\} and Rinella, \{G. Aglieri\} and M. Agnello and N. Agrawal and Z. Ahammed and Ahn, \{S. U.\} and I. Aimo and S. Aiola and Bertens, \{R. A.\} and C. Bianchin and S. Bjelogrlic and M. Botje and A. Caliva and M. Chojnacki and P. Christakoglou and T. Chujo and A. Dobrin and A. Dubla and L. Fabbietti and A. Grelli and Keijdener, \{D. L. D.\} and M. Krzewicki and Kuijer, \{P. G.\} and \{La Pointe\}, \{S. L.\} and E. Leogrande and Lodato, \{D. F.\} and G. Luparello and J. Margutti and A. Mischke and N. Mohammadi and S. Muhuri and G. Nooren and \{Oliveira Da Silva\}, \{A. C.\} and T. Peitzmann and N. Poljak and S. Rajput and M. Reicher and E. Rocco and Manso, \{A. Rodriguez\} and Snellings, \{R. J. M.\} and D. Thomas and \{Van Der Maarel\}, J. and \{van Leeuwen\}, M. and Veen, \{A. M.\} and M. Veldhoen and M. Verweij and H. Wang and Y. Zhou",

year = "2015",

month = jun,

day = "30",

doi = "10.1016/j.physletb.2015.05.033",

language = "English",

volume = "746",

pages = "385--395",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - Measurement of dijet k(T) in p-Pb collisions at root s(NN)=5.02 TeV

AU - ALICE Collaboration

AU - Adam, J.

AU - Adamova, D.

AU - Aggarwal, M. M.

AU - Rinella, G. Aglieri

AU - Agnello, M.

AU - Agrawal, N.

AU - Ahammed, Z.

AU - Ahn, S. U.

AU - Aimo, I.

AU - Aiola, S.

AU - Bertens, R. A.

AU - Bianchin, C.

AU - Bjelogrlic, S.

AU - Botje, M.

AU - Caliva, A.

AU - Chojnacki, M.

AU - Christakoglou, P.

AU - Chujo, T.

AU - Dobrin, A.

AU - Dubla, A.

AU - Fabbietti, L.

AU - Grelli, A.

AU - Keijdener, D. L. D.

AU - Krzewicki, M.

AU - Kuijer, P. G.

AU - La Pointe, S. L.

AU - Leogrande, E.

AU - Lodato, D. F.

AU - Luparello, G.

AU - Margutti, J.

AU - Mischke, A.

AU - Mohammadi, N.

AU - Muhuri, S.

AU - Nooren, G.

AU - Oliveira Da Silva, A. C.

AU - Peitzmann, T.

AU - Poljak, N.

AU - Rajput, S.

AU - Reicher, M.

AU - Rocco, E.

AU - Manso, A. Rodriguez

AU - Snellings, R. J. M.

AU - Thomas, D.

AU - Van Der Maarel, J.

AU - van Leeuwen, M.

AU - Veen, A. M.

AU - Veldhoen, M.

AU - Verweij, M.

AU - Wang, H.

AU - Zhou, Y.

PY - 2015/6/30

Y1 - 2015/6/30

N2 - A measurement of dijet correlations in p-Pb collisions at root s(NN) = 5.02 TeV with the ALICE detector is presented. Jets are reconstructed from charged particles measured in the central tracking detectors and neutral energy deposited in the electromagnetic calorimeter. The transverse momentum of the full jet (clustered from charged and neutral constituents) and charged jet (clustered from charged particles only) is corrected event-by-event for the contribution of the underlying event, while corrections for underlying event fluctuations and finite detector resolution are applied on an inclusive basis. A projection of the dijet transverse momentum, k(Ty) = p(T,jet)(ch+ne) sin(Delta phi(dijet)) with Delta phi(dijet) the azimuthal angle between a full and charged jet and p(T,jet)(ch+ne) the transverse momentum of the full jet, is used to study nuclear matter effects in p-Pb collisions. This observable is sensitive to the acoplanarity of dijet production and its potential modificationin p-Pb collisions with respect to pp collisions. Measurements of the dijet k(Ty) as a function of the transverse momentum of the full and recoil charged jet, and the event multiplicity are presented. No significant modification of k(Ty) due to nuclear matter effects in p-Pb collisions with respect to the event multiplicity or a PYTHIA8 reference is observed. (C) 2015 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B.V.

AB - A measurement of dijet correlations in p-Pb collisions at root s(NN) = 5.02 TeV with the ALICE detector is presented. Jets are reconstructed from charged particles measured in the central tracking detectors and neutral energy deposited in the electromagnetic calorimeter. The transverse momentum of the full jet (clustered from charged and neutral constituents) and charged jet (clustered from charged particles only) is corrected event-by-event for the contribution of the underlying event, while corrections for underlying event fluctuations and finite detector resolution are applied on an inclusive basis. A projection of the dijet transverse momentum, k(Ty) = p(T,jet)(ch+ne) sin(Delta phi(dijet)) with Delta phi(dijet) the azimuthal angle between a full and charged jet and p(T,jet)(ch+ne) the transverse momentum of the full jet, is used to study nuclear matter effects in p-Pb collisions. This observable is sensitive to the acoplanarity of dijet production and its potential modificationin p-Pb collisions with respect to pp collisions. Measurements of the dijet k(Ty) as a function of the transverse momentum of the full and recoil charged jet, and the event multiplicity are presented. No significant modification of k(Ty) due to nuclear matter effects in p-Pb collisions with respect to the event multiplicity or a PYTHIA8 reference is observed. (C) 2015 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B.V.

KW - TRANSVERSE-MOMENTA

KW - JET

KW - FRAGMENTATION

U2 - 10.1016/j.physletb.2015.05.033

DO - 10.1016/j.physletb.2015.05.033

M3 - Article

SN - 0370-2693

VL - 746

SP - 385

EP - 395

JO - Physics Letters B

JF - Physics Letters B

ER -

Measurement of dijet k(T) in p-Pb collisions at root s(NN)=5.02 TeV

Abstract

Funding

Keywords

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