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TY - JOUR
AU - Sirunyan, A M
AU - Tumasyan, A
AU - Adam, W
AU - Ambrogi, F
AU - Adžić, Petar
AU - Ćirković, Predrag
AU - Devetak, Damir
AU - Đorđević, Miloš
AU - Milošević, Jovan
PY - 2020
UR - http://vinar.vin.bg.ac.rs/handle/123456789/8766
AB - The production of W± bosons is studied in proton-lead (pPb) collisions at a nucleon-nucleon centre-of-mass energy of sNN=8.16TeV. Measurements are performed in the W±→μ±νμ channel using a data sample corresponding to an integrated luminosity of 173.4±6.1nb−1, collected by the CMS Collaboration at the LHC. The number of positively and negatively charged W bosons is determined separately in the muon pseudorapidity region in the laboratory frame |ηlab μ|<2.4 and transverse momentum pT μ>25GeV/c. The W± boson differential cross sections, muon charge asymmetry, and the ratios of W± boson yields for the proton-going over the Pb-going beam directions are reported as a function of the muon pseudorapidity in the nucleon-nucleon centre-of-mass frame. The measurements are compared to the predictions from theoretical calculations based on parton distribution functions (PDFs) at next-to-leading-order. The results favour PDF calculations that include nuclear modifications and provide constraints on the nuclear PDF global fits. © 2019 The Author(s)
T2 - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
T1 - Observation of nuclear modifications in W± boson production in pPb collisions at sNN=8.16TeV
VL - 800
SP - 135048
DO - 10.1016/j.physletb.2019.135048
ER -
@article{
author = "Sirunyan, A M and Tumasyan, A and Adam, W and Ambrogi, F and Adžić, Petar and Ćirković, Predrag and Devetak, Damir and Đorđević, Miloš and Milošević, Jovan",
year = "2020",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/8766",
abstract = "The production of W± bosons is studied in proton-lead (pPb) collisions at a nucleon-nucleon centre-of-mass energy of sNN=8.16TeV. Measurements are performed in the W±→μ±νμ channel using a data sample corresponding to an integrated luminosity of 173.4±6.1nb−1, collected by the CMS Collaboration at the LHC. The number of positively and negatively charged W bosons is determined separately in the muon pseudorapidity region in the laboratory frame |ηlab μ|<2.4 and transverse momentum pT μ>25GeV/c. The W± boson differential cross sections, muon charge asymmetry, and the ratios of W± boson yields for the proton-going over the Pb-going beam directions are reported as a function of the muon pseudorapidity in the nucleon-nucleon centre-of-mass frame. The measurements are compared to the predictions from theoretical calculations based on parton distribution functions (PDFs) at next-to-leading-order. The results favour PDF calculations that include nuclear modifications and provide constraints on the nuclear PDF global fits. © 2019 The Author(s)",
journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",
title = "Observation of nuclear modifications in W± boson production in pPb collisions at sNN=8.16TeV",
volume = "800",
pages = "135048",
doi = "10.1016/j.physletb.2019.135048"
}
Sirunyan, A. M., Tumasyan, A., Adam, W., Ambrogi, F., Adžić, P., Ćirković, P., Devetak, D., Đorđević, M.,& Milošević, J. (2020). Observation of nuclear modifications in W± boson production in pPb collisions at sNN=8.16TeV.
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 800, 135048.
https://doi.org/10.1016/j.physletb.2019.135048
Sirunyan AM, Tumasyan A, Adam W, Ambrogi F, Adžić P, Ćirković P, Devetak D, Đorđević M, Milošević J. Observation of nuclear modifications in W± boson production in pPb collisions at sNN=8.16TeV. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2020;800:135048
Sirunyan A M, Tumasyan A, Adam W, Ambrogi F, Adžić Petar, Ćirković Predrag, Devetak Damir, Đorđević Miloš, Milošević Jovan, "Observation of nuclear modifications in W± boson production in pPb collisions at sNN=8.16TeV" Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 800 (2020):135048,
https://doi.org/10.1016/j.physletb.2019.135048 .
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