Detector and Physics Performance at a Muon Collider

Bartosik, N.; Bertolin, A.; Buonincontri, Laura; Casarsa, M.; Collamati, Francesco; Ferrari, A.; Gianelle, A.; Lucchesi, D.; Mokhov, N.; Palmer, M.; Pastrone, N.; Sala, P.; Sestini, L.; Striganov, S.

doi:10.1088/1748-0221/15/05/p05001

Cited by 98 publications

(91 citation statements)

References 13 publications

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“…A detailed comparison of the results with those obtained by the MAP collaboration, once their geometry is reconstructed with the needed level of detail, will provide the needed benchmark of its accuracy, necessary to proceed with the BIB study in other machine configurations. Moreover, a comparison of BIB in the 126 [6,7] and 1.5 TeV cases will be performed, with the aim of identifying possible scaling lows that would allow to draw some hints on BIB impact on higher energy cases even before having the actual optics of such machines.…”

Section: Pos(ichep2020)684mentioning

confidence: 99%

A flexible tool for Beam Induced Background Simulations at a Muon Collider

Collamati¹,

Aimè²,

Andreetto³

et al. 2021

Proceedings of 40th International Conference on High Energy Physics — PoS(ICHEP2020)

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A Muon Collider represents a very interesting possibility for a future machine to explore the energy frontier in particle physics. However, to reach the needed luminosity, beam intensities of the order of 10 9−11 muons per bunch are needed. In this context, the Beam Induced Background must be taken into account for its effects on the magnets and on the detector. Several optimizations can be conceived with the aim to mitigate them. In this view, it is of crucial importance to develop a flexible tool that allows to easily reconstruct the machine geometry in a Monte Carlo code, allowing to simulate in detail the interaction of muon decay products in the machine, while being able to change the machine optics itself to find the best configuration. In this contribution, a possible approach to such a purpose is presented, based on FLUKA for the Monte Carlo simulation and on LineBuilder for the geometry reconstruction. First results for the 1.5 TeV machine optics developed by the MAP collaboration are discussed in this paper.

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Section: Pos(ichep2020)684mentioning

confidence: 99%

A flexible tool for Beam Induced Background Simulations at a Muon Collider

Collamati¹,

Aimè²,

Andreetto³

et al. 2021

Proceedings of 40th International Conference on High Energy Physics — PoS(ICHEP2020)

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“…This study [10] has been performed with the full simulation of the → (→ ¯ ) process at √ = 1.5 TeV, assuming the detector proposed by the MAP collaboration [9]. The signal and the irreducible inclusive background → ¯ have been generated with Pythia 8 [11].…”

Section: Measurement Of the → ¯ Cross-section And Higgs Coupling To -mentioning

confidence: 99%

“…However we assume that the BIB has an impact on the tagging efficiency, since it introduces noise in the secondary vertex finding. For this reason the BIB has not been included in the full simulation, but events are reweighted for the -tagging efficiencies obtained in [10] in the presence of the BIB. At least four jets with T >20 GeV are required, jet pairs are assigned to Higgs candidates in the way that the following figure of merit is minimized:…”

Section: Pos(ichep2020)083mentioning

confidence: 99%

Higgs physics possibilities at a Muon Collider

Sestini¹,

Andreetto²,

Curatolo³

et al. 2021

Proceedings of 40th International Conference on High Energy Physics — PoS(ICHEP2020)

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Muon collisions at multi-TeV center-of-mass energies are ideal for studying the Higgs-boson properties. The large number of produced Higgs bosons will allow to measure its couplings to fermions and bosons with an unprecedented precision. At multi-TeV centre-of-mass energies, the double (triple) Higgs-boson production rate will be sufficiently high to directly measure the parameters of trilinear (quadrilinear) self-couplings, enabling the precise determination of the Higgs boson potential. In this contribution a study of the → and → processes, where the Higgs bosons decay in two b-jets, is presented based on the full simulation of the detector with an evaluation of the beam-induced background.

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“…On the other hand, due to the small QCD backgrounds, the muon collider is rather clean, allowing very precise measurements. The physics potential of a high energy muon collider has been discussed since the 1990s [65,66], while it receives a renewed interest recently [67][68][69][70][71][72][73][74][75][76][77][78][79][80][81][82][83][84].…”

Section: Introductionmentioning

confidence: 99%

Probing electroweak phase transition with multi-TeV muon colliders and gravitational waves

Liu

Xie

2021

J. High Energ. Phys.

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We study the complementarity of the proposed multi-TeV muon colliders and the near-future gravitational wave (GW) detectors to the first order electroweak phase transition (FOEWPT), taking the real scalar extended Standard Model as the representative model. A detailed collider simulation shows the FOEWPT parameter space can be greatly probed via the vector boson fusion production of the singlet, and its subsequent decay to the di-Higgs or di-boson channels. Especially, almost all the parameter space yielding detectable GW signals can be probed by the muon colliders. Therefore, if we could detect stochastic GWs in the future, a muon collider could provide a hopeful crosscheck to identify their origin. On the other hand, there is considerable parameter space that escapes GW detections but is within the reach of the muon colliders. The precision measurements of Higgs couplings could also probe the FOEWPT parameter space efficiently.

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Detector and Physics Performance at a Muon Collider

Cited by 98 publications

References 13 publications

A flexible tool for Beam Induced Background Simulations at a Muon Collider

A flexible tool for Beam Induced Background Simulations at a Muon Collider

Higgs physics possibilities at a Muon Collider

Probing electroweak phase transition with multi-TeV muon colliders and gravitational waves

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