Next-to-leading order prediction for the decay μ → e (e+e−) νν ̄

Fael, Matteo; Greub, Christoph (2017). Next-to-leading order prediction for the decay μ → e (e+e−) νν ̄. Journal of High Energy Physics, 2017(1) Springer 10.1007/JHEP01(2017)084

[img]
Preview
Text
JHEP01(2017)084.pdf - Published Version
Available under License Creative Commons: Attribution (CC-BY).

Download (565kB) | Preview

We present the differential decay rates and the branching ratios of the muon decay with internal conversion, μ → e (e+e−) νν ̄, in the Standard Model at next-to-leading order (NLO) in the on-shell scheme. This rare decay mode of the muon is among the main sources of background to the search for μ → eee decay. We found that in the phase space region where the neutrino energies are small, and the three-electron momenta have a similar signature as in the μ → eee decay, the NLO corrections decrease the leading-order prediction by about 10 − 20% depending on the applied cut.

Item Type:

Journal Article (Original Article)

Division/Institute:

10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC)
08 Faculty of Science > Institute of Theoretical Physics

UniBE Contributor:

Fael, Matteo and Greub, Christoph

Subjects:

500 Science > 530 Physics

ISSN:

1029-8479

Publisher:

Springer

Language:

English

Submitter:

Esther Fiechter

Date Deposited:

19 Jul 2017 16:30

Last Modified:

23 Jul 2017 02:13

Publisher DOI:

10.1007/JHEP01(2017)084

ArXiv ID:

1611.03726

BORIS DOI:

10.7892/boris.95452

URI:

https://boris.unibe.ch/id/eprint/95452

Actions (login required)

Edit item Edit item
Provide Feedback