Combination and QCD analysis of charm and beauty production cross-section measurements in deep inelastic ep scattering at HERA

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F18%3A10386747" target="_blank" >RIV/00216208:11320/18:10386747 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/18:00501561

Výsledek na webu

<a href="https://doi.org/10.1140/epjc/s10052-018-5848-3" target="_blank" >https://doi.org/10.1140/epjc/s10052-018-5848-3</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1140/epjc/s10052-018-5848-3" target="_blank" >10.1140/epjc/s10052-018-5848-3</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Combination and QCD analysis of charm and beauty production cross-section measurements in deep inelastic ep scattering at HERA

Popis výsledku v původním jazyce

Measurements of open charm and beauty production cross sections in deep inelastic ep scattering at HERA from the H1 and ZEUS Collaborations are combined. Reduced cross sections are obtained in the kinematic range of negative four-momentum transfer squared of the photon 2.5 GeV2 &lt;= Q(2) &lt;= 2000 GeV2 and Bjorken scaling variable 3 . 10(-5) &lt;= x(Bj) &lt;= 5 . 10(-2). The combination method accounts for the correlations of the statistical and systematic uncertainties among the different datasets. Perturbative QCD calculations are compared to the combined data. A next-to-leading order QCD analysis is performed using these data together with the combined inclusive deep inelastic scattering cross sections from HERA. The running charmand beauty-quark masses are determined as m(c)(m(c)) = 1.290(-0.041)(+0.046)(exp/fit)(-0.014)(+0.062)(model)(0.031)(+0.003)(parameterisation) GeV and m(b)(m(b)) = 4.049(-0.109)(+0.104)(exp/fit)(-0.032)(+0.090)(model)(-0.031)(+0.001)(parameterisation) GeV.

Název v anglickém jazyce

Combination and QCD analysis of charm and beauty production cross-section measurements in deep inelastic ep scattering at HERA

Popis výsledku anglicky

Measurements of open charm and beauty production cross sections in deep inelastic ep scattering at HERA from the H1 and ZEUS Collaborations are combined. Reduced cross sections are obtained in the kinematic range of negative four-momentum transfer squared of the photon 2.5 GeV2 &lt;= Q(2) &lt;= 2000 GeV2 and Bjorken scaling variable 3 . 10(-5) &lt;= x(Bj) &lt;= 5 . 10(-2). The combination method accounts for the correlations of the statistical and systematic uncertainties among the different datasets. Perturbative QCD calculations are compared to the combined data. A next-to-leading order QCD analysis is performed using these data together with the combined inclusive deep inelastic scattering cross sections from HERA. The running charmand beauty-quark masses are determined as m(c)(m(c)) = 1.290(-0.041)(+0.046)(exp/fit)(-0.014)(+0.062)(model)(0.031)(+0.003)(parameterisation) GeV and m(b)(m(b)) = 4.049(-0.109)(+0.104)(exp/fit)(-0.032)(+0.090)(model)(-0.031)(+0.001)(parameterisation) GeV.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

<a href="/cs/project/LG14033" target="_blank" >LG14033: Česká spolupráce na projektech H1 a CALICE</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

European Physical Journal C

ISSN

1434-6044

e-ISSN

—

Svazek periodika

78

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

32

Strana od-do

—

Kód UT WoS článku

000434725000004

EID výsledku v databázi Scopus

2-s2.0-85048571444