Determination of the Strange-Quark Density of the Proton from ATLAS Measurements of the W - GT lv and Z - GT ll Cross Sections

Aad, G.; Borjanović, Iris; Božović-Jelisavčić, Ivanka; Agatonović-Jovin, Tatjana; Krstić, Jelena; Mamužić, Judita; Mudrinić, Mihajlo; Popović, D. S.; Sijacki, Dj.; Simić, Lj.; Vranješ, Nenad; Vranješ Milosavljević, Marija; Živković, Lada

doi:10.1103/PhysRevLett.109.012001

2012

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ATLAS Collaboration (ukupan broj autora: 3036)

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Abstract

AQCD analysis is reported of ATLAS data on inclusive W-+/- and Z boson production in pp collisions at the LHC, jointly with ep deep-inelastic scattering data from HERA. The ATLAS data exhibit sensitivity to the light quark sea composition and magnitude at Bjorken x similar to 0:01. Specifically, the data support the hypothesis of a symmetric composition of the light quark sea at low x. The ratio of the strange-to-down sea quark distributions is determined to be 1:00(-0:28)(+0.25) at absolute four-momentum transfer squared Q(2) = 1: 9 GeV2 and x = 0: 023.

Source:
Physical Review Letters, 2012, 109, 1

Funding / projects:

ANPCyT, Argentina, YerPhI, Armenia, ARC, Australia, BMWF, Austria, ANAS, Azerbaijan, SSTC, Belarus, CNPq, Brazil, FAPESP, Brazil, NSERC, Canada, NRC, Canada, CFI, Canada, CERN, CONICYT, Chile, CAS, China, MOST, China, NSFC, China, COLCIENCIAS, Colombia, MSMT CR, Czech Republic, MPO CR, Czech Republic, VSC CR, Czech Republic, DNRF, Denmark, DNSRC, Denmark, Lundbeck Foundation, Denmark, EPLANET, European Union, ERC, European Union, IN2P3-CNRS, France, CEA-DSM/IRFU, France, GNAS, Georgia, BMBF, Germany, DFG, Germany, HGF, Germany, MPG, Germany, AvH Foundation, Germany, GSRT, Greece, ISF, Israel, MINERVA, Israel, GIF, Israel, DIP, Israel, Benoziyo Center, Israel, INFN, Italy, MEXT, Japan, JSPS, Japan, CNRST, Morocco, FOM, Netherlands, NWO, Netherlands, RCN, Norway, MNiSW, Poland, GRICES, Portugal, FCT, Portugal, MERYS (MECTS), Romania, MES of Russia, Russian Federation, ROSATOM, Russian Federation, JINR, MSTD, Serbia, MSSR, Slovakia, ARRS, Slovenia, MVZT, Slovenia, DST/NRF, South Africa, MICINN, Spain, SRC, Sweden, Wallenberg Foundation, Sweden, SER, Switzerland, SNSF, Switzerland, Cantons of Bern and Geneva, Switzerland, NSC, Taiwan, TAEK, Turkey, STFC, United Kingdom, Royal Society, United Kingdom, Leverhulme Trust, United Kingdom, DOE, United States of America, NSF, United States of America, ICREA

DOI: 10.1103/PhysRevLett.109.012001

ISSN: 0031-9007; 1079-7114

WoS: 000306323400002

Scopus: 2-s2.0-84863710932

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TY  - JOUR
AU  - Aad, G.
AU  - Borjanović, Iris
AU  - Božović-Jelisavčić, Ivanka
AU  - Agatonović-Jovin, Tatjana
AU  - Krstić, Jelena
AU  - Mamužić, Judita
AU  - Mudrinić, Mihajlo
AU  - Popović, D. S.
AU  - Sijacki, Dj.
AU  - Simić, Lj.
AU  - Vranješ, Nenad
AU  - Vranješ Milosavljević, Marija
AU  - Živković, Lada
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4943
AB  - AQCD analysis is reported of ATLAS data on inclusive W-+/- and Z boson production in pp collisions at the LHC, jointly with ep deep-inelastic scattering data from HERA. The ATLAS data exhibit sensitivity to the light quark sea composition and magnitude at Bjorken x similar to 0:01. Specifically, the data support the hypothesis of a symmetric composition of the light quark sea at low x. The ratio of the strange-to-down sea quark distributions is determined to be 1:00(-0:28)(+0.25) at absolute four-momentum transfer squared Q(2) = 1: 9 GeV2 and x = 0: 023.
T2  - Physical Review Letters
T1  - Determination of the Strange-Quark Density of the Proton from ATLAS Measurements of the W - GT lv and Z - GT ll Cross Sections
VL  - 109
IS  - 1
DO  - 10.1103/PhysRevLett.109.012001
ER  -

@article{
author = "Aad, G. and Borjanović, Iris and Božović-Jelisavčić, Ivanka and Agatonović-Jovin, Tatjana and Krstić, Jelena and Mamužić, Judita and Mudrinić, Mihajlo and Popović, D. S. and Sijacki, Dj. and Simić, Lj. and Vranješ, Nenad and Vranješ Milosavljević, Marija and Živković, Lada",
year = "2012",
abstract = "AQCD analysis is reported of ATLAS data on inclusive W-+/- and Z boson production in pp collisions at the LHC, jointly with ep deep-inelastic scattering data from HERA. The ATLAS data exhibit sensitivity to the light quark sea composition and magnitude at Bjorken x similar to 0:01. Specifically, the data support the hypothesis of a symmetric composition of the light quark sea at low x. The ratio of the strange-to-down sea quark distributions is determined to be 1:00(-0:28)(+0.25) at absolute four-momentum transfer squared Q(2) = 1: 9 GeV2 and x = 0: 023.",
journal = "Physical Review Letters",
title = "Determination of the Strange-Quark Density of the Proton from ATLAS Measurements of the W - GT lv and Z - GT ll Cross Sections",
volume = "109",
number = "1",
doi = "10.1103/PhysRevLett.109.012001"
}

Aad, G., Borjanović, I., Božović-Jelisavčić, I., Agatonović-Jovin, T., Krstić, J., Mamužić, J., Mudrinić, M., Popović, D. S., Sijacki, Dj., Simić, Lj., Vranješ, N., Vranješ Milosavljević, M.,& Živković, L.. (2012). Determination of the Strange-Quark Density of the Proton from ATLAS Measurements of the W - GT lv and Z - GT ll Cross Sections. in Physical Review Letters, 109(1).
https://doi.org/10.1103/PhysRevLett.109.012001

Aad G, Borjanović I, Božović-Jelisavčić I, Agatonović-Jovin T, Krstić J, Mamužić J, Mudrinić M, Popović DS, Sijacki D, Simić L, Vranješ N, Vranješ Milosavljević M, Živković L. Determination of the Strange-Quark Density of the Proton from ATLAS Measurements of the W - GT lv and Z - GT ll Cross Sections. in Physical Review Letters. 2012;109(1).
doi:10.1103/PhysRevLett.109.012001 .

Aad, G., Borjanović, Iris, Božović-Jelisavčić, Ivanka, Agatonović-Jovin, Tatjana, Krstić, Jelena, Mamužić, Judita, Mudrinić, Mihajlo, Popović, D. S., Sijacki, Dj., Simić, Lj., Vranješ, Nenad, Vranješ Milosavljević, Marija, Živković, Lada, "Determination of the Strange-Quark Density of the Proton from ATLAS Measurements of the W - GT lv and Z - GT ll Cross Sections" in Physical Review Letters, 109, no. 1 (2012),
https://doi.org/10.1103/PhysRevLett.109.012001 . .