Cerrito, L;
Lancaster, M;
Lane, JB;
McGivern, D;
Snihur, R;
Waters, DS;
Wyatt, AC;
(2001)
Production of Xc1 and Xc2 in pp(overbar) collisions at (square root)s = 1.8 TeV.
Physical Review Letters
, 86
(18)
3963 - 3968.
10.1103/PhysRevLett.86.3963.
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Abstract
We have measured the ratio of prompt production rates of the charmonium states χc1 and χc2 in 110pb-1 of pp̅ collisions at √s = 1.8TeV. The photon from their decay into J/ψγ is reconstructed through conversion into e+e- pairs. The energy resolution this technique provides makes the resolution of the two states possible. We find the ratio of production cross sections σχc2/σχc1 = 0.96±0.27(stat)±0.11(syst) for events with pT(J/ψ)>4.0GeV/c, |η(J/ψ)|<0.6, and pT(γ)>1.0GeV/c.
| Type: | Article |
|---|---|
| Title: | Production of Xc1 and Xc2 in pp(overbar) collisions at (square root)s = 1.8 TeV |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.86.3963 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.86.3963 |
| Language: | English |
| Additional information: | © 2001 The American Physical Society |
| Keywords: | Elementary Particle Physics, production |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/131907 |
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