Searching for new spin-0 resonances at LHCb

TL;DR

This paper explores the potential of LHCb to detect light spin-0 particles via dimuon resonances, highlighting their production advantages and the importance of mixing effects in bottomonium states.

Contribution

It proposes a novel search strategy for light spin-0 particles at LHCb using dimuon resonances, emphasizing the role of mixing effects and recent bottomonium measurements.

Findings

LHCb can effectively search for light spin-0 particles in the dimuon channel.

Mixing effects are significant in the bottomonium resonance region.

Recent Upsilon measurements enhance the sensitivity to these states.

Abstract

We study the phenomenology of light spin-0 particles and stress that they can be efficiently searched for at the LHCb experiment in the form of dimuon resonances. Given the large production cross sections in the forward rapidity region together with the efficient triggering and excellent mass resolution, it is argued that LHCb can provide unique sensitivity to such states. We illustrate our proposal using the recent measurement of Upsilon production by LHCb, emphasising the importance of mixing effects in the bottomonium resonance region. The implications for dimuon decays of spin-0 bottomonium states are also briefly discussed.