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A Trigger for Displaced Muon Pairs Following the CMS Phase II Upgrades · Around

2019

A Trigger for Displaced Muon Pairs Following the CMS Phase II Upgrades

Gershtein, Yuri, Knapen, Simon

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We show that the phase II upgrade of the CMS tracking detector could enable the experiment to trigger on very low mass $\mathcal{O}(1\,\text{GeV})$ displaced muon pairs with minimal $p_T$ cuts.

As a result, CMS can be competitive with LHCb when searching for low mass displaced exotics originating from heavy flavor decays.
The method can also be applied to signatures without muons but with a moderate amount of MET, $H_T$ or multiple displaced vertices in the event.

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2017

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R. Aaij et al. (LHCb collaboration), Search for long-lived scalar particles in B + → K + χ ( μ + μ − ) B^{+}\to K^{+}\chi(\mu^{+}\mu^{-}) decays, Phys. Rev. D95

Cited in the paper.

T. Sjostrand, S. Mrenna, and P. Z. Skands, PYTHIA 6.4 Physics and Manual, JHEP 05

Cited in the paper.

M. Williams, Private communication

Cited in the paper.

2019

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