Publicaciones

Research areas:

Física Teórica de Partículas

2013

In Proceeding

Authors:

• Ivan Schmidt
• Juan Carlos Helo
• M. Gonzalez
• Sergey Kovalenko
• T. Gutsche
• V. Lyubovitskij

Phys.Rev.

D87

Pages:

15

Abstract:

We revisit the status of Lepton Flavor Violating (LFV) \mu e qq contact interactions from the view point of \mu - e -conversion in nuclei. We consider their contribution to this LFV process via the two mechanisms on the hadronic level: direct nucleon and meson exchange ones. In the former case the quarks are embedded directly into the nucleons while in the latter in mesons which then interact with nucleons in a nucleus. We revise and in some cases reevaluate the hadronic parameters relevant for both mechanisms and calculate the contribution of the above mentioned contact interactions in coherent \mu - e -conversion in various nuclei. Then we update the existing upper bounds and also derive new ones for the scales of the \mu e qq contact interactions from the experimental limits on the capture rates of \mu - e -conversion. We compare these limits with the ones derived in the literature from other LFV processes and comment on the prospects of LHC searches related to the contact \mu e qq interactions.

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Noticias - Física Teórica de Partículas Elementales (En)

26 · April · 2018