Abstract
The double-differential cross sections of promptly produced J/ψ and ψ(2S) mesons are measured in pp collisions at s=7TeV, as a function of transverse momentum pT and absolute rapidity |y|. The analysis uses J/ψ and ψ(2S) dimuon samples collected by the CMS experiment, corresponding to integrated luminosities of 4.55 and 4.90fb-1, respectively. The results are based on a two-dimensional analysis of the dimuon invariant mass and decay length, and extend to pT=120 and 100 GeV for the J/ψ and ψ(2S), respectively, when integrated over the interval |y|<1.2. The ratio of the ψ(2S) to J/ψ cross sections is also reported for |y|<1.2, over the range 10<pT<100GeV. These are the highest pT values for which the cross sections and ratio have been measured.
| Original language | English |
|---|---|
| Article number | 191802 |
| Journal | Physical Review Letters |
| Volume | 114 |
| Issue number | 19 |
| DOIs | |
| Publication status | Published - 14 May 2015 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2015 CERN, for the CMS Collaboration.
Funding
| Funders | Funder number |
|---|---|
| ???publication-publication-funding-organisation-not-added??? | ST/I005912/1 |
| National Science Foundation | 1151640, 1206044, 1314131, 1306951, 1506130, 1120138, 1211067 |
| Science and Technology Facilities Council | ST/L00609X/1, ST/N000250/1, ST/J004901/1, ST/K003542/1, ST/K001256/1, ST/K003844/1, GRIDPP, ST/M005356/1, ST/I505580/1, ST/J005665/1, ST/J50094X/1, ST/K001604/1, ST/M004775/1, ST/K001639/1, ST/L005603/1 |
| Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung | 153664 |