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Study of Long-Lived particles beyond the Standard Model at LHCb

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Study of Long-Lived particles beyond the Standard Model at LHCb

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dc.contributor.advisor	Oyanguren Campos, Arantza
dc.contributor.author	Jiménez Ortega, Miguel
dc.contributor.other	Departament de Física Atòmica, Molecular i Nuclear	es_ES
dc.date.accessioned	2022-09-30T07:51:44Z
dc.date.available	2022-10-01T04:45:07Z
dc.date.issued	2022	es_ES
dc.date.submitted	15-09-2022	es_ES
dc.identifier.uri	https://hdl.handle.net/10550/84074
dc.description.abstract	Long-lived particles are predicted in many extensions of the Standard Model but the experimental detection is very challenging because they decay out of the first trackers and usually scape to the trigger decisions. In this work we review several new physics models and summarize the experimental status concerning the related searches. We revise the capabilities of the high level trigger system of the LHCb experiment and evaluate the effect of the trigger to detect long-lived particles for two models: a previous work where Dark Higgs Model is assumed, and another one studied for first time in this work, the Composite Higgs involving light scalars signatures. A Montecarlo study about the decay vertex proportions at reconstructible level is conducted, giving a general idea of how much information is missing from tracks downstream of the LHCb magnet. In the case of Composite Higgs model, a 60% of this type of vertices can be missed for lifetimes larger than 10 ps.	es_ES
dc.format.extent	44 p	es_ES
dc.language.iso	en	es_ES
dc.subject	physics	es_ES
dc.subject	long	es_ES
dc.subject	lived	es_ES
dc.subject	particles	es_ES
dc.subject	lhcb	es_ES
dc.subject	standard	es_ES
dc.subject	model	es_ES
dc.title	Study of Long-Lived particles beyond the Standard Model at LHCb	es_ES
dc.type	master thesis	es_ES
dc.subject.unesco	UNESCO::FÍSICA	es_ES
dc.embargo.terms	0 days	es_ES