Measurements of the electron and muon inclusive cross-sections in proton–proton collisions at $sqrt{s} = 7$ TeV with the ATLAS detector

Pramana

on behalf of the ATLAS Collaboration¹  Moritz Backes1² 

[1] $$;Département de Physique Nucléaire et Corpusculaire, Université de Genève, 1211 Geneva 4, Switzerland$$

关键词: Quantum chromodynamics;    heavy quark production;    lepton production;    experimental results;    Large Hadron Collider;    ATLAS.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

We present the measurements of the differential cross-sections for inclusive electron and muon production in proton–proton collisions at a centre-of-mass energy of $sqrt{s} = 7$ TeV, using ∼ 1.4 pb-1 of data collected by the ATLAS detector at the Large Hadron Collider. The muon cross-section is measured as a function of muon transverse momentum $p_{ext{T}}$ in the range $4 < p_{ext{T}} < 100$ GeV and within pseudorapidity $|𝜂| < 2.5$. In addition, the electron and muon cross-sections are measured in the range $7 < p_{ext{T}} < 26$ GeV and within |𝜂| < 2.0, excluding 1.37 < |𝜂| < 1.52. After subtraction of the$ W/Z/𝛾^{*}$ contribution, the differential cross-sections are found to be in good agreement with theoretical predictions for heavy-flavour production obtained from fixed order NLO calculations with NLL high-$p_{ext{T}}$ resummation, and to be sensitive to the effects of NLL resummation.

【 授权许可】

Unknown