Why detect forward muons at a muon collider

Fuente: arXiv
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Main Authors: Ruhdorfer, Maximilian, Salvioni, Ennio, Wulzer, Andrea
Format: Preprint
Published: 2024
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author Ruhdorfer, Maximilian
Salvioni, Ennio
Wulzer, Andrea
author_facet Ruhdorfer, Maximilian
Salvioni, Ennio
Wulzer, Andrea
contents We survey the opportunities offered by the detection of the forward muons that accompany the creation of neutral effective vector bosons at a muon collider, in different kinematic regimes. Vectors with relatively low energy produce the Higgs boson and the extended muon angular coverage enables studies of the Higgs properties, such as the measurement of the inclusive production cross section and of the branching ratio to invisible final states. New heavy particles could be produced by vectors of higher energy, through Higgs portal interactions. If the new particles are invisible, the detection of the forward muons is essential in order to search for this scenario. The angular correlations of the forward muons are sensitive to the quantum interference between the vector boson helicity amplitudes and can be exploited for the characterisation of vector boson scattering and fusion processes. This is illustrated by analysing the CP properties of the Higgs coupling to the Z boson. Our findings provide a physics case and a set of benchmarks for the design of a dedicated forward muon detector.
format Preprint
id arxiv_https___arxiv_org_abs_2411_00096
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Why detect forward muons at a muon collider
Ruhdorfer, Maximilian
Salvioni, Ennio
Wulzer, Andrea
High Energy Physics - Phenomenology
High Energy Physics - Experiment
We survey the opportunities offered by the detection of the forward muons that accompany the creation of neutral effective vector bosons at a muon collider, in different kinematic regimes. Vectors with relatively low energy produce the Higgs boson and the extended muon angular coverage enables studies of the Higgs properties, such as the measurement of the inclusive production cross section and of the branching ratio to invisible final states. New heavy particles could be produced by vectors of higher energy, through Higgs portal interactions. If the new particles are invisible, the detection of the forward muons is essential in order to search for this scenario. The angular correlations of the forward muons are sensitive to the quantum interference between the vector boson helicity amplitudes and can be exploited for the characterisation of vector boson scattering and fusion processes. This is illustrated by analysing the CP properties of the Higgs coupling to the Z boson. Our findings provide a physics case and a set of benchmarks for the design of a dedicated forward muon detector.
title Why detect forward muons at a muon collider
topic High Energy Physics - Phenomenology
High Energy Physics - Experiment
url https://arxiv.org/abs/2411.00096