Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Measurement of double-differential cross sections for top quark pair production in pp collisions at √s=8TeV and impact on parton distribution functions : see text][Formula: see text] and impact on parton distribution functions. / The CMS collaboration ; Блинов, Владимир Евгеньевич.
в: European Physical Journal C, Том 77, № 7, 459, 11.07.2017, стр. 459.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Measurement of double-differential cross sections for top quark pair production in pp collisions at √s=8TeV and impact on parton distribution functions
T2 - see text][Formula: see text] and impact on parton distribution functions
AU - The CMS collaboration
AU - Sirunyan, A. M.
AU - Tumasyan, A.
AU - Adam, W.
AU - Asilar, E.
AU - Bergauer, T.
AU - Brandstetter, J.
AU - Brondolin, E.
AU - Dragicevic, M.
AU - Erö, J.
AU - Flechl, M.
AU - Friedl, M.
AU - Frühwirth, R.
AU - Ghete, V. M.
AU - Hartl, C.
AU - Hörmann, N.
AU - Hrubec, J.
AU - Jeitler, M.
AU - König, A.
AU - Krätschmer, I.
AU - Liko, D.
AU - Matsushita, T.
AU - Mikulec, I.
AU - Rabady, D.
AU - Rad, N.
AU - Rahbaran, B.
AU - Rohringer, H.
AU - Schieck, J.
AU - Strauss, J.
AU - Waltenberger, W.
AU - Wulz, C. E.
AU - Dvornikov, O.
AU - Makarenko, V.
AU - Mossolov, V.
AU - Suarez Gonzalez, J.
AU - Zykunov, V.
AU - Shumeiko, N.
AU - Alderweireldt, S.
AU - De Wolf, E. A.
AU - Janssen, X.
AU - Lauwers, J.
AU - Van De Klundert, M.
AU - Van Haevermaet, H.
AU - Van Mechelen, P.
AU - Van Remortel, N.
AU - Van Spilbeeck, A.
AU - Abu Zeid, S.
AU - Blekman, F.
AU - D’Hondt, J.
AU - Skovpen, Y.
AU - Shtol, D.
AU - Блинов, Владимир Евгеньевич
N1 - Publisher Copyright: © 2017, CERN for the benefit of the CMS collaboration.
PY - 2017/7/11
Y1 - 2017/7/11
N2 - Normalized double-differential cross sections for top quark pair (t t ¯) production are measured in pp collisions at a centre-of-mass energy of 8TeV with the CMS experiment at the LHC. The analyzed data correspond to an integrated luminosity of 19.7fb-1. The measurement is performed in the dilepton e ±μ∓ final state. The t t ¯ cross section is determined as a function of various pairs of observables characterizing the kinematics of the top quark and t t ¯ system. The data are compared to calculations using perturbative quantum chromodynamics at next-to-leading and approximate next-to-next-to-leading orders. They are also compared to predictions of Monte Carlo event generators that complement fixed-order computations with parton showers, hadronization, and multiple-parton interactions. Overall agreement is observed with the predictions, which is improved when the latest global sets of proton parton distribution functions are used. The inclusion of the measured t t ¯ cross sections in a fit of parametrized parton distribution functions is shown to have significant impact on the gluon distribution.
AB - Normalized double-differential cross sections for top quark pair (t t ¯) production are measured in pp collisions at a centre-of-mass energy of 8TeV with the CMS experiment at the LHC. The analyzed data correspond to an integrated luminosity of 19.7fb-1. The measurement is performed in the dilepton e ±μ∓ final state. The t t ¯ cross section is determined as a function of various pairs of observables characterizing the kinematics of the top quark and t t ¯ system. The data are compared to calculations using perturbative quantum chromodynamics at next-to-leading and approximate next-to-next-to-leading orders. They are also compared to predictions of Monte Carlo event generators that complement fixed-order computations with parton showers, hadronization, and multiple-parton interactions. Overall agreement is observed with the predictions, which is improved when the latest global sets of proton parton distribution functions are used. The inclusion of the measured t t ¯ cross sections in a fit of parametrized parton distribution functions is shown to have significant impact on the gluon distribution.
KW - 3-LOOP SPLITTING FUNCTIONS
KW - DENSITIES
KW - EVOLUTION
KW - ORDER
KW - QCD
UR - http://www.scopus.com/inward/record.url?scp=85024387884&partnerID=8YFLogxK
U2 - 10.1140/epjc/s10052-017-4984-5
DO - 10.1140/epjc/s10052-017-4984-5
M3 - Article
C2 - 28943791
AN - SCOPUS:85024387884
VL - 77
SP - 459
JO - European Physical Journal C
JF - European Physical Journal C
SN - 1434-6044
IS - 7
M1 - 459
ER -
ID: 10072612