Szczegóły publikacji
Opis bibliograficzny
Updated measurements of exclusive J / ${\psi}$ and ${\psi}$(2S) production cross-section in $pp$ collisions at $\sqrt{s}=7$ TeV / R. Aaij, [et al.], P. DOROSZ, [et al.], M. IDZIK, [et al.], B. MURYN, [et al.], A. OBŁĄKOWSKA-MUCHA, [et al.], K. SENDEROWSKA, [et al.], T. SZUMLAK, [et al.] // Journal of Physics. G, Nuclear and Particle Physics ; ISSN 0954-3899. — 2014 — vol. 41 iss. 5 article no. 055002, s. 1–20. — Bibliogr. s. 19–20, Abstr. — P. Dorosz – dod. afiliacja: Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences
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Dane bibliometryczne
| ID BaDAP | 81228 |
|---|---|
| Data dodania do BaDAP | 2014-05-15 |
| Tekst źródłowy | URL |
| DOI | 10.1088/0954-3899/41/5/055002 |
| Rok publikacji | 2014 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Journal of Physics, G, Nuclear and Particle Physics |
Abstract
The differential cross-section as a function of rapidity has been measured for the exclusive production of J/psi and psi(2S) mesons in proton-proton collisions at root s = 7 TeV, using data collected by the LHCb experiment, corresponding to an integrated luminosity of 930 pb(-1). The cross-sections times branching fractions to two muons having pseudorapidities between 2.0 and 4.5 are measured to be sigma (pp -> J/psi -> mu+mu-)(2.0 < eta(mu +/-) < 4.5) = 291 +/- 7 +/- 19 pb, sigma (pp ->psi(2S)->mu+mu-)(2.0 < eta(mu +/-) < 4.5) = 6.5 +/- 0.9 +/- 0.4 pb, where the first uncertainty is statistical and the second is systematic. The measurements agree with next-to-leading order QCD predictions as well as with models that include saturation effects.
