Determination of the strong coupling constant αs(&ITm&ITZ) in next-to-next-to-leading order QCD using HI jet cross section measurements

被引：0

作者：

Andreev, V. ^{[20
]}

Baghdasaryan, A. ^{[33
]}

Begzsuren, K. ^{[30
]}

Belousov, A. ^{[20
]}

Bertone, V. ^{[48
,49
]}

Bolz, A. ^{[13
]}

Boudry, V. ^{[23
]}

Brandt, G. ^{[43
]}

Brisson, V. ^{[22
]}

Britzger, D. ^{[13
]}

Buniatyan, A. ^{[2
]}

Bylinkin, A. ^{[45
]}

Bystritskaya, L. ^{[19
]}

Campbell, A. J. ^{[11
]}

Cantun Avila, K. B. ^{[18
]}

Cerny, K. ^{[26
]}

Chekelian, V. ^{[21
]}

Contreras, J. G. ^{[18
]}

Cvach, J. ^{[25
]}

Currie, J. ^{[50
]}

Dainton, J. B. ^{[15
]}

Daum, K. ^{[32
]}

Diaconu, C. ^{[17
]}

Dobre, M. ^{[5
]}

Dodonov, V. ^{[11
]}

Eckerlin, G. ^{[11
]}

Egli, S. ^{[31
]}

Elsen, E. ^{[11
]}

Favart, L. ^{[3
,4
]}

Fedotov, A. ^{[19
]}

Feltesse, J. ^{[10
]}

Fleischer, M. ^{[11
]}

Fomenko, A. ^{[20
]}

Gabathuler, E. ^{[15
]}

Gayler, J. ^{[11
]}

Gehrmann, T. ^{[36
]}

Ghazaryan, S. ^{[11
]}

Goerlich, L. ^{[7
]}

Gogitidze, N. ^{[20
]}

Gouzevitch, M. ^{[37
]}

Grab, C. ^{[35
]}

Grebenyuk, A. ^{[3
,4
]}

Greenshaw, T. ^{[15
]}

Grindhammer, G. ^{[21
]}

Gwenlan, C. ^{[46
]}

Haidt, D. ^{[11
]}

Henderson, R. C. W. ^{[14
]}

Hladky, J. ^{[25
]}

Hoffmann, D. ^{[17
]}

Horisberger, R. ^{[31
]}

机构：

[1] Phys Inst RWTH, Aachen, Germany

[2] Univ Birmingham, Sch Phys & Astron, Birmingham, W Midlands, England

[3] ULB VUB, Interuniv Inst High Energies, Brussels, Belgium

[4] Univ Antwerp, Antwerp, Belgium

[5] Horia Hulubei Natl Inst R&D Phys & Nucl Engn IFIN, Bucharest, Romania

[6] Rutherford Appleton Lab, STFC, Didcot, Oxon, England

[7] Polish Acad Sci, Inst Nucl Phys, PL-31342 Krakow, Poland

[8] TU Dortmund, Inst Phys, Dortmund, Germany

[9] Joint Inst Nucl Res, Dubna, Russia

[10] CE Saclay, Irfu SPP, Gif Sur Yvette, France

[11] DESY, Hamburg, Germany

[12] Univ Hamburg, Inst Expt Phys, Hamburg, Germany

[13] Heidelberg Univ, Phys Inst, Heidelberg, Germany

[14] Univ Lancaster, Dept Phys, Lancaster, England

[15] Univ Liverpool, Dept Phys, Liverpool, Merseyside, England

[16] Queen Mary Univ London, Sch Phys & Astron, London, England

[17] Aix Marseille Univ, CNRS, IN2P3, CPPM,UMR 7346, F-13288 Marseille, France

[18] CINVESTAV, Dept Fis Aplicada, Merida, Yucatan, Mexico

[19] Inst Theoret & Expt Phys, Moscow, Russia

[20] Lebedev Phys Inst, Moscow, Russia

[21] Max Planck Inst Phys & Astrophys, Munich, Germany

[22] Univ Paris Sud, LAL, CNRS, IN2P3, Orsay, France

[23] Ecole Polytech, LLR, CNRS, IN2P3, Palaiseau, France

[24] Univ Montenegro, Fac Sci, Podgorica, Montenegro

[25] Acad Sciences Czech Republ, Inst Phys, Prague, Czech Republic

[26] Charles Univ Prague, Fac Math & Phys, Prague, Czech Republic

[27] Univ Roma Tre, Dipartimento Fis, Rome, Italy

[28] INFN Roma 3, Rome, Italy

[29] Inst Nucl Energy Res, Sofia, Bulgaria

[30] Mongolian Acad Sci, Inst Phys & Technol, Ulaanbaatar, Mongolia

[31] Paul Scherrer Inst, Villigen, Switzerland

[32] Univ Wuppertal, Fachbereich C, Wuppertal, Germany

[33] Yerevan Phys Inst, Yerevan, Armenia

[34] DESY, Zeuthen, Germany

[35] ETH, Inst Teilchenphys, Zurich, Switzerland

[36] Univ Zurich, Phys Inst, Zurich, Switzerland

[37] Univ Claude Bernard Lyon 1, IPNL, CNRS, IN2P3, Villeurbanne, France

[38] Lomonosov Moscow State Univ, Skobeltsyn Inst Nucl Phys, Moscow, Russia

[39] CERN, Geneva, Switzerland

[40] Ulaanbaatar Univ, Ulaanbaatar, Mongolia

[41] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada

[42] Univ Savoie, LAPP, CNRS, IN2P3, Annecy Le Vieux, France

[43] Univ Gottingen, Phys Inst 2, Gottingen, Germany

[44] RAS, Inst Informat Transmiss Problems, Moscow, Russia

[45] Moscow Inst Phys & Technol, Dolgoprudnyi, Moscow Region, Russia

[46] Univ Oxford, Dept Phys, Oxford, England

[47] Purdue Univ, Dept Phys & Astron, 525 Northwestern Ave, W Lafayette, IN 47907 USA

[48] Vrije Univ Amsterdam, Dept Phys & Astron, De Boelelaan 1081, Amsterdam, Netherlands

[49] Natl Inst Subatom Phys NIKHEF, Sci Pk 105, Amsterdam, Netherlands

[50] Univ Durham, Inst Particle Phys Phenomenol, Ogden Ctr Fundamental Phys, South Rd, Durham, England

来源：

EUROPEAN PHYSICAL JOURNAL C | 2017年 / 77卷 / 11期

基金：

英国科学技术设施理事会; 瑞士国家科学基金会;

关键词：

DEEP-INELASTIC SCATTERING; POSITRON-PROTON COLLISIONS; 3-LOOP SPLITTING FUNCTIONS; DIJET PRODUCTION; INCLUSIVE-JET; EP SCATTERING; EVENT RATES; PARTON DENSITY; BETA-FUNCTION; BREIT FRAME;

D O I：

10.1140/epjc/s10052-017-5314-7

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The strong coupling constant alpha(s) is determined from inclusive jet and dijet cross sections in neutral-current deep-inelastic ep scattering (DIS) measured at HERA by the HI collaboration using next-to-next-to-leading order (NNLO) QCD predictions. The dependence of the NNLO predictions and of the resulting value of alpha(s)(m(z)) at the Z-boson mass m(z) are studied as a function of the choice of the renormalisation and factorisation scales. Using inclusive jet and dijet data together, the strong coupling constant is determined to be alpha(s)(m(z)) = 0.1157 (20)(exp) (29)(th). Complementary, alpha(s)(m(z)) is determined together with parton distribution functions of the proton (PDFs) from jet and inclusive DIS data measured by the H1 experiment. The value alpha(s)(m(z)) = 0.1142 (28)(tot )obtained is consistent with the determination from jet data alone. The impact of the jet data on the PDFs is studied. The running of the strong coupling is tested at different values of the renormalisation scale and the results are found to be in agreement with expectations.

引用

页数：21

共 3 条

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Shaikhatdenov, B. G.
Kotikov, A. V.
Krivokhizhin, V. G.
Parente, G.
PHYSICAL REVIEW D, 2010, 81 (03):
[2] Determination of the strong coupling constant using inclusive jet cross section data from multiple experiments
Britzger, Daniel
Rabbertz, Klaus
Savoiu, Daniel
Sieber, Georg
Wobisch, Markus
EUROPEAN PHYSICAL JOURNAL C, 2019, 79 (01):
[3] Determination of the strong coupling constant from the inclusive jet cross section in pp collisions at s=1.96 TeV
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