Journal article
Measurement of Xc1 and Xc2 production with √s = 7 TeV pp collisions at ATLAS
Journal of high energy physics : JHEP., Vol.2014(7), 154
07/01/2014
DOI: 10.1007/JHEP07(2014)154
Abstract
The prompt and non-prompt production cross-sections for the χc1 and χc2 charmonium states are measured in pp collisions at √s = 7 TeV with the ATLAS detector at the LHC using 4.5 fb−1 of integrated luminosity. The χc states are reconstructed through the radiative decay χc → J/ψ γ (with J/ψ → μ+μ−) where photons are reconstructed from γ → e+e− conversions. The production rate of the χc2 state relative to the χc1 state is measured for prompt and non-prompt χc as a function of J/ψ transverse momentum. The prompt χc cross-sections are combined with existing measurements of prompt J/ψ production to derive the fraction of prompt J/ψ produced in feed-down from χc decays. The fractions of χc1 and χc2 produced in b-hadron decays are also measured.
Facultad de Ciencias Exactas
Details
- Title: Subtitle
- Measurement of Xc1 and Xc2 production with √s = 7 TeV pp collisions at ATLAS
- Creators
- María Josefina Alconada VerziniFrancisco AlonsoXabier Sebastián AnduagaMaría Teresa DovaFernando Gabriel MonticelliMartín F TripianaATLAS Collaboration
- Contributors
- Usha Mallik (Contributor) - University of Iowa, Physics and Astronomy
- Resource Type
- Journal article
- Publication Details
- Journal of high energy physics : JHEP., Vol.2014(7), 154
- DOI
- 10.1007/JHEP07(2014)154
- ISSN
- 1126-6708
- eISSN
- 1029-8479
- Language
- English
- Date published
- 07/01/2014
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984199821002771
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