Szczegóły publikacji
Opis bibliograficzny
Exclusive $J/\psi$ and $\psi$(2S) production in $pp$ collisions at $\sqrt{s}=7$ TeV / R. Aaij, [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. — 2013 — vol. 40 no. 4, s. 045001-1–045001-18. — Bibliogr. s. 17–18, Abstr.
Autorzy (3000)
Dane bibliometryczne
| ID BaDAP | 73226 |
|---|---|
| Data dodania do BaDAP | 2013-04-22 |
| Tekst źródłowy | URL |
| DOI | 10.1088/0954-3899/40/4/045001 |
| Rok publikacji | 2013 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Journal of Physics, G, Nuclear and Particle Physics |
Abstract
Exclusive J/psi and psi(2S) vector meson production has been observed in the dimuon channel using the LHCb detector. The cross-section times branching fractions to two muons with pseudorapidities between 2.0 and 4.5 are measured to be sigma(pp -> J/psi(->mu+mu-))(2.0 < eta(mu +/-) < 4.5) = 307 +/- 21 +/- 36 pb, sigma(pp ->psi(2S)(->mu+mu-))(2.0 < eta(mu +/-) < 4.5) = 7.8 +/- 1.3 +/- 1.0 pb, where the first uncertainties are statistical and the second are systematic. The measurements are found to be in good agreement with results from previous experiments and theoretical predictions. The J/psi photoproduction cross-section has been measured as a function of the photon-proton centre-of-mass energy. The results are consistent with measurements obtained at HERA and confirm a similar power law behaviour for the photoproduction cross-section.
