![DSpace logo](/jspui/image/logo.gif)
Please use this identifier to cite or link to this item:
http://dspace.bits-pilani.ac.in:8080/jspui/xmlui/handle/123456789/15291
Title: | Leptoquark solution for both the flavor and ANITA anomalies |
Authors: | Chauhan, Bhavesh |
Keywords: | Physics EeV energies ANITA anomalies |
Issue Date: | May-2019 |
Publisher: | APS |
Abstract: | The ANITA experiment has seen anomalous Earth emergent showers of EeV energies which cannot be explained with Standard Model interactions. In addition, tests of lepton flavor universality in 𝑅(𝐷(*)) and 𝑅(𝐾(*)) have shown significant deviations from theoretical predictions. It is known that, among single leptoquark solutions, only the chiral vector leptoquark 𝑈1∼(𝟑,𝟏,2/3) can simultaneously address the discrepancies. In this paper, we show that the leptoquark motivated by flavor anomalies coupled to a sterile neutrino can also explain the ANITA anomalous events. We consider two scenarios, (a) the sterile neutrino, produced via resonant leptoquark mediated neutrino-nucleon interactions, propagates through the Earth without significant attenuation and decays near the surface to a 𝜏 lepton; and (b) a cosmogenic sterile neutrino interacts with the matter near the surface of Earth and generates a 𝜏 lepton. These two scenarios give significantly large survival probabilities even when regeneration effects are not taken into account. In the second scenario, the distribution of emergent tau energy peaks in the same energy range as seen by ANITA. |
URI: | https://journals.aps.org/prd/abstract/10.1103/PhysRevD.99.095018 http://dspace.bits-pilani.ac.in:8080/jspui/xmlui/handle/123456789/15291 |
Appears in Collections: | Department of Physics |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.