Exotic spectroscopy and quarkonia at LHCb

TL;DR

This paper reports measurements of exotic and conventional quarkonium states, including mass and production ratios, using early LHCb data at 7 TeV to enhance understanding of quarkonium spectroscopy.

Contribution

First measurements of X(3872) mass, $ ext{ψ}(2S)$ production, and $ ext{χ}_{c2}/ ext{χ}_{c1}$ ratio at LHCb with 7 TeV data, providing new insights into quarkonium properties.

Findings

X(3872) mass measured with precision

$ ext{ψ}(2S)$ production cross-section determined

$ ext{χ}_{c2}/ ext{χ}_{c1}$ production ratio obtained

Abstract

Measurements of the X(3872) mass, $\psi(2S)$ production cross-section and $\chi_{c2}/\chi_{c1}$ production ratio using around 35$\rm pb^{-1}$ of pp collision data at $\sqrt{s}$ = 7 TeV during the 2010 LHC running period with the LHCb detector are presented.