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Baryon number violation in supersymmetry: n - (n)over-bar oscillations as a probe beyond the LHC
Stockholm University, Faculty of Science, Department of Physics.
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2016 (English)In: Journal of High Energy Physics (JHEP), ISSN 1126-6708, E-ISSN 1029-8479, no 5, article id 144Article in journal (Refereed) Published
Abstract [en]

We study baryon number violation in R-parity violating supersymmetry with focus on Delta B = 2 processes which allow neutron-anti-neutron (n - (n) over bar) oscillations. We provide prospects for going beyond the present limits by means of a new search for n oscillations. The motivation is the recently proposed n - (n) over bar oscillation experiment at the European Spallation Source in Lund, which is projected to be able to improve the current bound on the transition probability in the quasi-free regime by three orders of magnitude. We consider various processes giving rise to baryon number violation and extract the corresponding simplified models, including only the relevant superpartners and couplings. In terms of these models we determine the exclusion limits from LHC searches as well as from searches for flavor transitions, CP violation and di-nucleon decays. We find that, for certain regions of parameter space, the proposed n - (n) over bar experiment has a reach that goes beyond all other experiments, as it can probe gluino and squark masses in the multi-TeV range.

Place, publisher, year, edition, pages
2016. no 5, article id 144
Keywords [en]
Supersymmetry Phenomenology
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-152921DOI: 10.1007/JHEP05(2016)144ISI: 000377451300004OAI: oai:DiVA.org:su-152921DiVA, id: diva2:1182096
Available from: 2018-02-12 Created: 2018-02-12 Last updated: 2018-02-12Bibliographically approved

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Milstead, David A.Pöttgen, Ruth
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