Measurements of the production of P-wave charmonium states through radiative decays at the ATLAS experiment
The production cross sections of the χc1 and χc2 charmonium states are measured in pp collisions at √s = 7 TeV using 4.5 fb−1 of integrated luminosity recorded by the ATLAS detector at the LHC. The χc states are reconstructed via the radiative decay χc → J/ψ(μ+μ−)γ, where the photons are reconstruc...
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EDP Sciences
2014-04-01
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| Series: | EPJ Web of Conferences |
| Online Access: | http://dx.doi.org/10.1051/epjconf/20147100082 |
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doaj-e2a3216c9532456a9adaf7d556973ddc2021-08-02T05:33:17ZengEDP SciencesEPJ Web of Conferences2100-014X2014-04-01710008210.1051/epjconf/20147100082epjconf_icnfp2013_00082Measurements of the production of P-wave charmonium states through radiative decays at the ATLAS experimentMarcisovsky Michal0Institute of Physics ASCR Prague The production cross sections of the χc1 and χc2 charmonium states are measured in pp collisions at √s = 7 TeV using 4.5 fb−1 of integrated luminosity recorded by the ATLAS detector at the LHC. The χc states are reconstructed via the radiative decay χc → J/ψ(μ+μ−)γ, where the photons are reconstructed using γ → e+ e− conversion in the detector material. Differential production cross sections for prompt and non-prompt χc1,2 are presented, as well as the fraction of inclusive J/ψ produced by feed-down from the χc states. The results are compared with a range of theoretical predictions. The branching fraction of ℬ (B+ → χc1K+) is measured using the same dataset and χc event selection. http://dx.doi.org/10.1051/epjconf/20147100082 |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Marcisovsky Michal |
| spellingShingle |
Marcisovsky Michal Measurements of the production of P-wave charmonium states through radiative decays at the ATLAS experiment EPJ Web of Conferences |
| author_facet |
Marcisovsky Michal |
| author_sort |
Marcisovsky Michal |
| title |
Measurements of the production of P-wave charmonium states through radiative decays at the ATLAS experiment |
| title_short |
Measurements of the production of P-wave charmonium states through radiative decays at the ATLAS experiment |
| title_full |
Measurements of the production of P-wave charmonium states through radiative decays at the ATLAS experiment |
| title_fullStr |
Measurements of the production of P-wave charmonium states through radiative decays at the ATLAS experiment |
| title_full_unstemmed |
Measurements of the production of P-wave charmonium states through radiative decays at the ATLAS experiment |
| title_sort |
measurements of the production of p-wave charmonium states through radiative decays at the atlas experiment |
| publisher |
EDP Sciences |
| series |
EPJ Web of Conferences |
| issn |
2100-014X |
| publishDate |
2014-04-01 |
| description |
The production cross sections of the χc1 and χc2 charmonium states are measured in pp collisions at √s = 7 TeV using 4.5 fb−1 of integrated luminosity recorded by the ATLAS detector at the LHC. The χc states are reconstructed via the radiative decay χc → J/ψ(μ+μ−)γ, where the photons are reconstructed using γ → e+ e− conversion in the detector material. Differential production cross sections for prompt and non-prompt χc1,2 are presented, as well as the fraction of inclusive J/ψ produced by feed-down from the χc states. The results are compared with a range of theoretical predictions. The branching fraction of ℬ (B+ → χc1K+) is measured using the same dataset and χc event selection.
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| url |
http://dx.doi.org/10.1051/epjconf/20147100082 |
| work_keys_str_mv |
AT marcisovskymichal measurementsoftheproductionofpwavecharmoniumstatesthroughradiativedecaysattheatlasexperiment |
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