Parton distribution functions and benchmark cross sections at next-to-next-to-leading order

被引：243

作者：

Alekhin, S. ^{[1
,2
]}

Bluemlein, J. ^{[1
]}

Moch, S. ^{[1
]}

机构：

[1] Deutsch Elektronensynchrotron DESY, D-15738 Zeuthen, Germany

[2] Inst High Energy Phys, Protvino 142281, Moscow Region, Russia

来源：

PHYSICAL REVIEW D | 2012年 / 86卷 / 05期

关键词：

DEEP-INELASTIC-SCATTERING; DEUTERON STRUCTURE FUNCTIONS; OPERATOR MATRIX-ELEMENTS; D-ASTERISK(+/-) MESON PRODUCTION; HIGH STATISTICS MEASUREMENT; NUCLEON STRUCTURE FUNCTIONS; 3-LOOP SPLITTING FUNCTIONS; HEAVY FLAVOR CONTRIBUTIONS; STRONG-COUPLING CONSTANT; ASYMPTOTIC VALUES Q(2);

D O I：

10.1103/PhysRevD.86.054009

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a determination of parton distribution functions (ABM11) and the strong coupling constant alpha(s) at next-to-leading order and next-to-next-to-leading order (NNLO) in QCD based on world data for deep-inelastic scattering and fixed-target data for the Drell-Yan process. The analysis is performed in the fixed-flavor number scheme for n(f) = 3, 4, 5 and uses the (MS) over bar scheme for alpha(s) and the heavy-quark masses. At NNLO we obtain the value alpha(s) (M-Z) = 0.1134 +/- 0.0011. The fit results are used to compute benchmark cross sections at hadron colliders to NNLO accuracy and to compare to data from the LHC.

引用

页数：49

共 50 条

[31] Higgs-boson production at hadron colliders: Differential cross sections through next-to-next-to-leading order
Anastasiou, C
Melnikov, K
Petriello, F
PHYSICAL REVIEW LETTERS, 2004, 93 (26)
[32] Non-singlet structure functions beyond the next-to-next-to-leading order
van Neerven, WL
Vogt, A
NUCLEAR PHYSICS B, 2001, 603 (1-2) : 42 - 68
[33] Collinear factorization and splitting functions for next-to-next-to-leading order QCD calculations
Catani, S
Grazzini, M
PHYSICS LETTERS B, 1999, 446 (02) : 143 - 152
[34] On the next-to-next-to-leading order evolution of flavour-singlet fragmentation functions
Almasy, A. A.
Moch, S.
Vogt, A.
NUCLEAR PHYSICS B, 2012, 854 (01) : 133 - 152
[35] Next-to-next-to-leading order evolution of non-singlet fragmentation functions
Mitov, A.
Moch, S.
Vogt, A.
PHYSICS LETTERS B, 2006, 638 (01) : 61 - 67
[36] Extraction of Next-to-Next-to-Leading-Order Parton Distribution Functions from Lattice QCD Calculations
Li, Zheng-Yang
Ma, Yan-Qing
Qiu, Jian-Wei
PHYSICAL REVIEW LETTERS, 2021, 126 (07)
[37] Determination of nuclear parton distribution functions and their uncertainties at next-to-leading order
Hirai, M.
Kumano, S.
Nagai, T. -H.
PHYSICAL REVIEW C, 2007, 76 (06):
[38] Direct Photon Production at Next-to-Next-to-Leading Order
Campbell, John M.
Ellis, R. Keith
Williams, Ciaran
PHYSICAL REVIEW LETTERS, 2017, 118 (22)
[39] Subtraction scheme for next-to-next-to-leading order computations
Boughezal, Radja
Melnikov, Kirill
Petriello, Frank
PHYSICAL REVIEW D, 2012, 85 (03):
[40] First determination of D* -meson fragmentation functions and their uncertainties at next-to-next-to-leading order
Soleymaninia, Maryam
Khanpour, Hamzeh
Nejad, S. Mohammad Moosavi
PHYSICAL REVIEW D, 2018, 97 (07)

← 1 2 3 4 5 →