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Measurement of the triple-differential dijet cross section in proton-proton collisions at root s=8 tev and constraints on parton distribution functions

文献类型:期刊论文

作者Sirunyan, A. M.2; Tumasyan, A.2; Adam, W.3; Asilar, E.3; Bergauer, T.3; Brandstetter, J.3; Brondolin, E.3; Dragicevic, M.3; Eroe, J.3; Flechl, M.3
刊名European physical journal c
出版日期2017-11-07
卷号77期号:11页码:29
ISSN号1434-6044
DOI10.1140/epjc/s10052-017-5286-7
通讯作者Sirunyan, a. m.(cms-publication-committee-chair@cern.ch)
英文摘要A measurement is presented of the triple-differential dijet cross section at a centre-of-mass energy of 8 tev using 19.7 fb(-1) of data collected with the cms detector in proton-proton collisions at the lhc. the cross section is measured as a function of the average transverse momentum, half the rapidity separation, and the boost of the two leading jets in the event. the cross section is corrected for detector effects and compared to calculations in perturbative quantum chromodynamics at next-to-leading order accuracy, complemented with electroweak and nonperturbative corrections. new constraints on parton distribution functions are obtained and the inferred value of the strong coupling constant is alpha(s)(m-z) = 0.1199 +/- 0.0015 (exp)(-0.0020)(+0.0031) (theo), where m-z is the mass of the z boson.
WOS关键词SCATTERING ; QCD
WOS研究方向Physics
WOS类目Physics, Particles & Fields
语种英语
出版者SPRINGER
WOS记录号WOS:000414942200002
URI标识http://www.irgrid.ac.cn/handle/1471x/2176893
专题高能物理研究所
通讯作者Sirunyan, A. M.
作者单位1.CERN, CH-1211 Geneva 23, Switzerland
2.Yerevan Phys Inst, Yerevan, Armenia
3.Inst Hochenergiephys, Vienna, Austria
4.Inst Nucl Problems, Minsk, Byelarus
5.Natl Ctr Particle & High Energy Phys, Minsk, Byelarus
6.Univ Antwerp, Antwerp, Belgium
7.Vrije Univ Brussel, Brussels, Belgium
8.Univ Libre Bruxelles, Brussels, Belgium
9.Univ Ghent, Ghent, Belgium
10.Catholic Univ Louvain, Louvain la Neuve, Belgium
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GB/T 7714
Sirunyan, A. M.,Tumasyan, A.,Adam, W.,et al. Measurement of the triple-differential dijet cross section in proton-proton collisions at root s=8 tev and constraints on parton distribution functions[J]. European physical journal c,2017,77(11):29.
APA Sirunyan, A. M..,Tumasyan, A..,Adam, W..,Asilar, E..,Bergauer, T..,...&Khan, W. A..(2017).Measurement of the triple-differential dijet cross section in proton-proton collisions at root s=8 tev and constraints on parton distribution functions.European physical journal c,77(11),29.
MLA Sirunyan, A. M.,et al."Measurement of the triple-differential dijet cross section in proton-proton collisions at root s=8 tev and constraints on parton distribution functions".European physical journal c 77.11(2017):29.

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