High energy spectrum of internal positrons from radiative muon capture on nuclei

Ryan Plestid; Richard J. Hill

doi:10.1103/PhysRevD.103.033002

High energy spectrum of internal positrons from radiative muon capture on nuclei

Ryan Plestid, Richard J. Hill

Physics And Astronomy

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

The Mu2e and COMET collaborations will search for nucleus-catalyzed muon conversion to positrons (μ-→e+) as a signal of lepton number violation. A key background for this search is radiative muon capture where either (1) a real photon converts to an e+e- pair "externally"in surrounding material, or (2) a virtual photon mediates the production of an e+e- pair "internally."If the e+ has an energy approaching the signal region then it can serve as an irreducible background. In this work we describe how the near end point internal positron spectrum can be related to the real photon spectrum from the same nucleus, which encodes all nontrivial nuclear physics.

Original language	English
Article number	033002
Journal	Physical Review D
Volume	103
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevD.103.033002
State	Published - Feb 15 2021

Bibliographical note

Publisher Copyright:
© 2021 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

Access to Document

10.1103/PhysRevD.103.033002

Cite this

@article{9cb47379e5114fc793da0f355218936b,

title = "High energy spectrum of internal positrons from radiative muon capture on nuclei",

abstract = "The Mu2e and COMET collaborations will search for nucleus-catalyzed muon conversion to positrons (μ-→e+) as a signal of lepton number violation. A key background for this search is radiative muon capture where either (1) a real photon converts to an e+e- pair {"}externally{"}in surrounding material, or (2) a virtual photon mediates the production of an e+e- pair {"}internally.{"}If the e+ has an energy approaching the signal region then it can serve as an irreducible background. In this work we describe how the near end point internal positron spectrum can be related to the real photon spectrum from the same nucleus, which encodes all nontrivial nuclear physics.",

author = "Ryan Plestid and Hill, {Richard J.}",

note = "Publisher Copyright: {\textcopyright} 2021 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the {"}https://creativecommons.org/licenses/by/4.0/{"}Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.",

year = "2021",

month = feb,

day = "15",

doi = "10.1103/PhysRevD.103.033002",

language = "English",

volume = "103",

number = "3",

}

TY - JOUR

T1 - High energy spectrum of internal positrons from radiative muon capture on nuclei

AU - Plestid, Ryan

AU - Hill, Richard J.

N1 - Publisher Copyright: © 2021 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.

PY - 2021/2/15

Y1 - 2021/2/15

N2 - The Mu2e and COMET collaborations will search for nucleus-catalyzed muon conversion to positrons (μ-→e+) as a signal of lepton number violation. A key background for this search is radiative muon capture where either (1) a real photon converts to an e+e- pair "externally"in surrounding material, or (2) a virtual photon mediates the production of an e+e- pair "internally."If the e+ has an energy approaching the signal region then it can serve as an irreducible background. In this work we describe how the near end point internal positron spectrum can be related to the real photon spectrum from the same nucleus, which encodes all nontrivial nuclear physics.

AB - The Mu2e and COMET collaborations will search for nucleus-catalyzed muon conversion to positrons (μ-→e+) as a signal of lepton number violation. A key background for this search is radiative muon capture where either (1) a real photon converts to an e+e- pair "externally"in surrounding material, or (2) a virtual photon mediates the production of an e+e- pair "internally."If the e+ has an energy approaching the signal region then it can serve as an irreducible background. In this work we describe how the near end point internal positron spectrum can be related to the real photon spectrum from the same nucleus, which encodes all nontrivial nuclear physics.

UR - http://www.scopus.com/inward/record.url?scp=85100909510&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85100909510&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.103.033002

DO - 10.1103/PhysRevD.103.033002

M3 - Article

AN - SCOPUS:85100909510

SN - 2470-0010

VL - 103

JO - Physical Review D

JF - Physical Review D

IS - 3

M1 - 033002

ER -

High energy spectrum of internal positrons from radiative muon capture on nuclei

Abstract

Bibliographical note

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this