Journal
| Title | Measurement of Ï(2S) production cross-sections in proton-proton collisions at âs = 7 and 13 TeV Posted by Jan Mickelle Maratas |
| Authors | LHCb collaboration (R. Aaij, et al.) |
| Publication date | 2020/2/28 |
| Journal | European Physical Journal C |
| Volume | 80 |
| Issue | 3 |
| Pages | 185 |
| Publisher | Springer |
| Abstract | The cross-sections of Ï(2S) meson production in proton-proton collisions at sâ=13 TeV are measured with a data sample collected by the LHCb detector corresponding to an integrated luminosity of 275 pbâ1. The production cross-sections for prompt Ï(2S) mesons and those for Ï(2S) mesons from b-hadron decays (Ï(2S)-from- b) are determined as functions of the transverse momentum, pT, and the rapidity, y, of the Ï(2S) meson in the kinematic range 2<pT<20 GeV/c and 2.0<y<4.5. The production cross-sections integrated over this kinematic region are Ï( prompt Ï(2S),13 TeV)=1.430±0.005 (stat)±0.099 (syst)μb,Ï(Ï(2S)-from- b,13 TeV)=0.426±0.002 (stat)±0.030 (syst)μb. A new measurement of Ï(2S) production cross-sections in pp collisions at sâ=7 TeV is also performed using data collected in 2011, corresponding to an integrated luminosity of 614 pbâ1. The integrated production cross-sections in the kinematic range 3.5<pT<14 GeV/c and 2.0<y<4.5 are Ï( prompt Ï(2S),7 TeV)=0.471±0.001 (stat)±0.025 (syst)μb,Ï(Ï(2S)-from- b,7 TeV)=0.126±0.001 (stat)±0.008 (syst)μb. All results show reasonable agreement with theoretical calculations. |
| DOI | https://doi.org/10.1140/epjc/s10052-020-7638-y |
| URL | https://link.springer.com/article/10.1140%2Fepjc%2Fs10052-020-7638-y |