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Exploring the flavour structure of the high-scale MSSM


Isidori, Gino; Trifinopoulos, Sokratis (2020). Exploring the flavour structure of the high-scale MSSM. European Physical Journal C - Particles and Fields, 80(3):291.

Abstract

We analyse the sensitivity of quark flavour-changing observables to the MSSM, in a regime of heavy superpartners. We analyse four distinct and motivated frameworks characterising the structure of the soft-breaking terms by means of approximate flavour symmetries. We show that a set of six low-energy observables with realistic chances of improvement in the near future, namely ΔMs,d, ϵK, ϵ′K/ϵK, B(K→πνν¯), and the phase of D–D¯ mixing, could play a very important role in characterising these frameworks for superpartner masses up to O(100) TeV. We show that these observables remain very interesting even in a long-term perspective, i.e. even taking into account the direct mass reach of the most ambitious future high-energy colliders.

Abstract

We analyse the sensitivity of quark flavour-changing observables to the MSSM, in a regime of heavy superpartners. We analyse four distinct and motivated frameworks characterising the structure of the soft-breaking terms by means of approximate flavour symmetries. We show that a set of six low-energy observables with realistic chances of improvement in the near future, namely ΔMs,d, ϵK, ϵ′K/ϵK, B(K→πνν¯), and the phase of D–D¯ mixing, could play a very important role in characterising these frameworks for superpartner masses up to O(100) TeV. We show that these observables remain very interesting even in a long-term perspective, i.e. even taking into account the direct mass reach of the most ambitious future high-energy colliders.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Scopus Subject Areas:Physical Sciences > Engineering (miscellaneous)
Physical Sciences > Physics and Astronomy (miscellaneous)
Uncontrolled Keywords:Physics and Astronomy (miscellaneous), Engineering (miscellaneous)
Language:English
Date:1 March 2020
Deposited On:12 Aug 2020 14:52
Last Modified:13 Aug 2020 20:00
Publisher:Springer
ISSN:1434-6044
OA Status:Gold
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1140/epjc/s10052-020-7821-1
PubMed ID:32269499

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