Initial Results from the PIENU experiment

T. Sullivan, A. Aguilar-Arevalo, M. Aoki, M. Blecher, D. I. Britton, D. A. Bryman, D. Vom Bruch, S. Chen, J. Comfort, S. Cuen-Rochin, L. Doria, P. Gumplinger, A. Hussein, Y. Igarashi, S. Ito, S. H. Kettell, L. Kurchaninov, L. S. Littenberg, C. Malbrunot, R. E. MischkeT. Numao, D. Protopopescu, A. Sher, D. Vavilov

Research output: Contribution to journalArticle

Abstract

The pion branching ratio, Rπ = γ(π+→e+ve+→e+veϒ) γ(π+→μ+, vμ+→μ+vμϒ) provides a sensitive test of lepton universality and constraints on many new physics scenarios. The theoretical uncertainty on the Standard Model prediction of Rπ is 0.02%, a factor of twenty smaller than the experimental uncertainty. The analysis of a subset of data taken by the PIENU experiment will be presented. The result, Rπ = (1.2344±0.0023(stat) ±0.0019(syst)) 10-4[1], is consistent with the Standard Model prediction and represents a 0.1% constraint on lepton non-universality.

Original languageEnglish
JournalProceedings of Science
VolumePart F128555
Publication statusPublished - 2016

Fingerprint

leptons
predictions
set theory
pions
physics

ASJC Scopus subject areas

  • General

Cite this

Sullivan, T., Aguilar-Arevalo, A., Aoki, M., Blecher, M., Britton, D. I., Bryman, D. A., ... Vavilov, D. (2016). Initial Results from the PIENU experiment. Proceedings of Science, Part F128555.

Initial Results from the PIENU experiment. / Sullivan, T.; Aguilar-Arevalo, A.; Aoki, M.; Blecher, M.; Britton, D. I.; Bryman, D. A.; Vom Bruch, D.; Chen, S.; Comfort, J.; Cuen-Rochin, S.; Doria, L.; Gumplinger, P.; Hussein, A.; Igarashi, Y.; Ito, S.; Kettell, S. H.; Kurchaninov, L.; Littenberg, L. S.; Malbrunot, C.; Mischke, R. E.; Numao, T.; Protopopescu, D.; Sher, A.; Vavilov, D.

In: Proceedings of Science, Vol. Part F128555, 2016.

Research output: Contribution to journalArticle

Sullivan, T, Aguilar-Arevalo, A, Aoki, M, Blecher, M, Britton, DI, Bryman, DA, Vom Bruch, D, Chen, S, Comfort, J, Cuen-Rochin, S, Doria, L, Gumplinger, P, Hussein, A, Igarashi, Y, Ito, S, Kettell, SH, Kurchaninov, L, Littenberg, LS, Malbrunot, C, Mischke, RE, Numao, T, Protopopescu, D, Sher, A & Vavilov, D 2016, 'Initial Results from the PIENU experiment', Proceedings of Science, vol. Part F128555.
Sullivan T, Aguilar-Arevalo A, Aoki M, Blecher M, Britton DI, Bryman DA et al. Initial Results from the PIENU experiment. Proceedings of Science. 2016;Part F128555.
Sullivan, T. ; Aguilar-Arevalo, A. ; Aoki, M. ; Blecher, M. ; Britton, D. I. ; Bryman, D. A. ; Vom Bruch, D. ; Chen, S. ; Comfort, J. ; Cuen-Rochin, S. ; Doria, L. ; Gumplinger, P. ; Hussein, A. ; Igarashi, Y. ; Ito, S. ; Kettell, S. H. ; Kurchaninov, L. ; Littenberg, L. S. ; Malbrunot, C. ; Mischke, R. E. ; Numao, T. ; Protopopescu, D. ; Sher, A. ; Vavilov, D. / Initial Results from the PIENU experiment. In: Proceedings of Science. 2016 ; Vol. Part F128555.
@article{fc6224e44d6a4d99a8511aca2dfeb571,
title = "Initial Results from the PIENU experiment",
abstract = "The pion branching ratio, Rπ = γ(π+→e+ve+π+→e+veϒ) γ(π+→μ+, vμ+π+→μ+vμϒ) provides a sensitive test of lepton universality and constraints on many new physics scenarios. The theoretical uncertainty on the Standard Model prediction of Rπ is 0.02{\%}, a factor of twenty smaller than the experimental uncertainty. The analysis of a subset of data taken by the PIENU experiment will be presented. The result, Rπ = (1.2344±0.0023(stat) ±0.0019(syst)) 10-4[1], is consistent with the Standard Model prediction and represents a 0.1{\%} constraint on lepton non-universality.",
author = "T. Sullivan and A. Aguilar-Arevalo and M. Aoki and M. Blecher and Britton, {D. I.} and Bryman, {D. A.} and {Vom Bruch}, D. and S. Chen and J. Comfort and S. Cuen-Rochin and L. Doria and P. Gumplinger and A. Hussein and Y. Igarashi and S. Ito and Kettell, {S. H.} and L. Kurchaninov and Littenberg, {L. S.} and C. Malbrunot and Mischke, {R. E.} and T. Numao and D. Protopopescu and A. Sher and D. Vavilov",
year = "2016",
language = "English",
volume = "Part F128555",
journal = "Proceedings of Science",
issn = "1824-8039",
publisher = "Sissa Medialab Srl",

}

TY - JOUR

T1 - Initial Results from the PIENU experiment

AU - Sullivan, T.

AU - Aguilar-Arevalo, A.

AU - Aoki, M.

AU - Blecher, M.

AU - Britton, D. I.

AU - Bryman, D. A.

AU - Vom Bruch, D.

AU - Chen, S.

AU - Comfort, J.

AU - Cuen-Rochin, S.

AU - Doria, L.

AU - Gumplinger, P.

AU - Hussein, A.

AU - Igarashi, Y.

AU - Ito, S.

AU - Kettell, S. H.

AU - Kurchaninov, L.

AU - Littenberg, L. S.

AU - Malbrunot, C.

AU - Mischke, R. E.

AU - Numao, T.

AU - Protopopescu, D.

AU - Sher, A.

AU - Vavilov, D.

PY - 2016

Y1 - 2016

N2 - The pion branching ratio, Rπ = γ(π+→e+ve+π+→e+veϒ) γ(π+→μ+, vμ+π+→μ+vμϒ) provides a sensitive test of lepton universality and constraints on many new physics scenarios. The theoretical uncertainty on the Standard Model prediction of Rπ is 0.02%, a factor of twenty smaller than the experimental uncertainty. The analysis of a subset of data taken by the PIENU experiment will be presented. The result, Rπ = (1.2344±0.0023(stat) ±0.0019(syst)) 10-4[1], is consistent with the Standard Model prediction and represents a 0.1% constraint on lepton non-universality.

AB - The pion branching ratio, Rπ = γ(π+→e+ve+π+→e+veϒ) γ(π+→μ+, vμ+π+→μ+vμϒ) provides a sensitive test of lepton universality and constraints on many new physics scenarios. The theoretical uncertainty on the Standard Model prediction of Rπ is 0.02%, a factor of twenty smaller than the experimental uncertainty. The analysis of a subset of data taken by the PIENU experiment will be presented. The result, Rπ = (1.2344±0.0023(stat) ±0.0019(syst)) 10-4[1], is consistent with the Standard Model prediction and represents a 0.1% constraint on lepton non-universality.

UR - http://www.scopus.com/inward/record.url?scp=85026376138&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85026376138&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:85026376138

VL - Part F128555

JO - Proceedings of Science

JF - Proceedings of Science

SN - 1824-8039

ER -