Speaker
Description
Exclusive photoproduction of Upsilon(nS) meson states off protons is measured in ultraperipheral pPb collisions at a center-of-mass energy per nucleon pair of 5.02 TeV. The measurement is carried out in the $\Upsilon (nS)\to\mu^+\mu^-$ decay modes, with data collected by the CMS experiment corresponding to an integrated luminosity of $32.6$~nb$^{-1}$. Differential cross sections, as a function of the $\Upsilon$(nS) transverse momentum squared $p_{T}^2$, and rapidity $y$, are presented. The $\Upsilon$(1S) photoproduction cross section is extracted as a function of the photon-proton center-of-mass energy over the $91 < W_{\gamma p}<826$~GeV range. The data are compared to theoretical perturbative quantum chromodynamics predictions and to previous measurements.
| Content type | Experiment |
|---|---|
| Collaboration | CMS |
| Centralised submission by Collaboration | Presenter name already specified |
