Özet
The production of the X(3872) is studied in pp collisions at √s = 7TeV, using decays to J/ψπ+π−, where the J/ψ decays to two muons. The data were recorded by the CMS experiment and correspond to an integrated luminosity of 4.8fb−1. The measurements are performed in a kinematic range in which the X(3872) candidates have a transverse momentum 10 < pT < 50GeV and rapidity |y| < 1.2. The ratio of the X(3872) and ψ (2S) cross sections times their branching fractions into J/ψπ+π− is measured as a function of pT. In addition, the fraction of X(3872) originating from B decays is determined. From these measurements the prompt X(3872) differential cross section times branching fraction as a function of pT is extracted. The π+π− mass spectrum of the J/ψπ+π− system in the X(3872) decays is also investigated.
| Orijinal dil | İngilizce |
|---|---|
| Makale numarası | 154 |
| Dergi | Journal of High Energy Physics |
| Hacim | 2013 |
| Basın numarası | 4 |
| DOI'lar | |
| Yayın durumu | Yayınlandı - 29 Nis 2013 |
| Harici olarak yayınlandı | Evet |
Bibliyografik not
Publisher Copyright:© 2013, Springer Verlag. All rights reserved.
Finansman
| Finansörler | Finansör numarası |
|---|---|
| ???publication-publication-funding-organisation-not-added??? | ST/H00081X/2 |
| National Science Foundation | 1151640, 0969555, 1205960, 1211067 |
| Science and Technology Facilities Council | ST/L00609X/1, ST/J004901/1, ST/K001256/1, ST/K003844/1, ST/H000925/1, ST/F007434/1, ST/I505580/1, ST/I505572/1, ST/I005912/1, ST/J005665/1, ST/K001604/1, ST/K001639/1, ST/F007094/1 |
| Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung | 144921, 146398, 138111 |
Parmak izi
Measurement of the X(3872) production cross section via decays to J/ψπ+π− in pp collisions at √s = 7 TeV' araştırma başlıklarına git. Birlikte benzersiz bir parmak izi oluştururlar.Alıntı Yap
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