Szczegóły publikacji
Opis bibliograficzny
First measurement of the |t| dependence of incoherent $J/\psi$ photonuclear production / S. Acharya, [et al.], B. BALIŚ, [et al.], M. GORGOŃ, [et al.], A. HORZYK, [et al.], M. JABŁOŃSKI, [et al.], J. P. KITOWSKI, [et al.], S. D. KORYCIAK, [et al.], T. M. LELEK, [et al.], E. M. MAJERZ, [et al.], R. W. MARCJAN, [et al.], P. G. RUSSEK, [et al.] // Physical Review Letters ; ISSN 0031-9007. — 2024 — vol. 132 iss. 16 art. no. 162302, s. 162302-1–162302-14. — Bibliogr. s. 162302-6–162302-8, Abstr. — Publikacja dostępna online od: 2024-04-19
Autorzy (1057)
Dane bibliometryczne
| ID BaDAP | 152877 |
|---|---|
| Data dodania do BaDAP | 2024-05-16 |
| Tekst źródłowy | URL |
| DOI | 10.1103/PhysRevLett.132.162302 |
| Rok publikacji | 2024 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Physical Review Letters |
Abstract
The first measurement of the cross section for incoherent photonuclear production of J/ψ vector mesons as a function of the Mandelstam |t| variable is presented. The measurement was carried out with the ALICE detector at midrapidity, |y|<0.8, using ultraperipheral collisions of Pb nuclei at a center-of-mass energy per nucleon pair of √sNN=5.02 TeV. This rapidity interval corresponds to a Bjorken-x range (0.3–1.4)×10−3. Cross sections are given in five |t| intervals in the range 0.04<|t|<1 GeV2 and compared to the predictions by different models. Models that ignore quantum fluctuations of the gluon density in the colliding hadron predict a |t| dependence of the cross section much steeper than in data. The inclusion of such fluctuations in the same models provides a better description of the data.
