John Ellis
Search for Sphalerons: IceCube vs. LHC
Ellis, John; Sakurai, Kazuki; Spannowsky, Michael
Abstract
We discuss the observability of neutrino-induced sphaleron transitions in the IceCube detector, encouraged by a recent paper by Tye and Wong (TW), which argued on the basis of a Bloch wave function in the periodic sphaleron potential that such transitions should be enhanced compared to most previous calculations. We calculate the dependence on neutrino energy of the sphaleron transition rate, comparing it to that for conventional neutrino interactions, and we discuss the observability of tau and multi-muon production in sphaleron-induced transitions. We use IceCube 4-year data to constrain the sphaleron rate, finding that it is comparable to the upper limit inferred previously from a recast of an ATLAS search for microscopic black holes at the LHC with ∼ 3/fb of collisions at 13 TeV. The IceCube constraint is stronger for a sphaleron barrier height ESph ≳ 9 TeV, and would be comparable with the prospective LHC sensitivity with 300/fb of data at 14 TeV if ESph ∼ 11 TeV.
Citation
Ellis, J., Sakurai, K., & Spannowsky, M. (2016). Search for Sphalerons: IceCube vs. LHC. Journal of High Energy Physics, 2016(05), Article 085. https://doi.org/10.1007/jhep05%282016%29085
Journal Article Type | Article |
---|---|
Acceptance Date | Apr 29, 2016 |
Online Publication Date | May 13, 2016 |
Publication Date | May 13, 2016 |
Deposit Date | Nov 10, 2016 |
Publicly Available Date | Mar 8, 2017 |
Journal | Journal of High Energy Physics |
Print ISSN | 1126-6708 |
Publisher | Scuola Internazionale Superiore di Studi Avanzati (SISSA) |
Peer Reviewed | Peer Reviewed |
Volume | 2016 |
Issue | 05 |
Article Number | 085 |
DOI | https://doi.org/10.1007/jhep05%282016%29085 |
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Copyright Statement
This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
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