Improved Measurement of the π → eν Branching Ratio

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

doi:10.1103/PhysRevLett.115.071801

Improved Measurement of the π → eν Branching Ratio

A. Aguilar-Arevalo, M. Aoki, M. Blecher, D. I. Britton, D. A. Bryman, D. Vom Bruch, S. Chen, J. Comfort, M. Ding, L. Doria, S. Cuen-Rochin, 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, T. Sullivan, D. Vavilov, K. Yamada

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

79 Citations (Scopus)

Abstract

A new measurement of the branching ratio Re/μ=Γ(π+→e+ν+π+→e+νγ)/Γ(π+→μ+ν+π+→μ+νγ) resulted in Re/μexp=[1.2344±0.0023(stat)±0.0019(syst)]×10-4. This is in agreement with the standard model prediction and improves the test of electron-muon universality to the level of 0.1%.

Original language	English
Article number	071801
Journal	Physical Review Letters
Volume	115
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevLett.115.071801
Publication status	Published - Aug 13 2015
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1103/PhysRevLett.115.071801

Cite this

Aguilar-Arevalo, A., Aoki, M., Blecher, M., Britton, D. I., Bryman, D. A., Vom Bruch, D., Chen, S., Comfort, J., Ding, M., Doria, L., Cuen-Rochin, S., Gumplinger, P., Hussein, A., Igarashi, Y., Ito, S., Kettell, S. H., Kurchaninov, L., Littenberg, L. S., Malbrunot, C., ... Yamada, K. (2015). Improved Measurement of the π → eν Branching Ratio. Physical Review Letters, 115(7), Article 071801. https://doi.org/10.1103/PhysRevLett.115.071801

Aguilar-Arevalo, A, Aoki, M, Blecher, M, Britton, DI, Bryman, DA, Vom Bruch, D, Chen, S, Comfort, J, Ding, M, Doria, L, Cuen-Rochin, S, Gumplinger, P, Hussein, A, Igarashi, Y, Ito, S, Kettell, SH, Kurchaninov, L, Littenberg, LS, Malbrunot, C, Mischke, RE, Numao, T, Protopopescu, D, Sher, A, Sullivan, T, Vavilov, D & Yamada, K 2015, 'Improved Measurement of the π → eν Branching Ratio', Physical Review Letters, vol. 115, no. 7, 071801. https://doi.org/10.1103/PhysRevLett.115.071801

@article{bb38ee7094ae4863b0d4e56d15e065b7,

title = "Improved Measurement of the π → eν Branching Ratio",

abstract = "A new measurement of the branching ratio Re/μ=Γ(π+→e+ν+π+→e+νγ)/Γ(π+→μ+ν+π+→μ+νγ) resulted in Re/μexp=[1.2344±0.0023(stat)±0.0019(syst)]×10-4. This is in agreement with the standard model prediction and improves the test of electron-muon universality to the level of 0.1%.",

author = "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 M. Ding and L. Doria and S. Cuen-Rochin 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 T. Sullivan and D. Vavilov and K. Yamada",

note = "Publisher Copyright: {\textcopyright} 2015 American Physical Society.",

year = "2015",

month = aug,

day = "13",

doi = "10.1103/PhysRevLett.115.071801",

language = "English",

volume = "115",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "7",

}

TY - JOUR

T1 - Improved Measurement of the π → eν Branching Ratio

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 - Ding, M.

AU - Doria, L.

AU - Cuen-Rochin, S.

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 - Sullivan, T.

AU - Vavilov, D.

AU - Yamada, K.

PY - 2015/8/13

Y1 - 2015/8/13

N2 - A new measurement of the branching ratio Re/μ=Γ(π+→e+ν+π+→e+νγ)/Γ(π+→μ+ν+π+→μ+νγ) resulted in Re/μexp=[1.2344±0.0023(stat)±0.0019(syst)]×10-4. This is in agreement with the standard model prediction and improves the test of electron-muon universality to the level of 0.1%.

AB - A new measurement of the branching ratio Re/μ=Γ(π+→e+ν+π+→e+νγ)/Γ(π+→μ+ν+π+→μ+νγ) resulted in Re/μexp=[1.2344±0.0023(stat)±0.0019(syst)]×10-4. This is in agreement with the standard model prediction and improves the test of electron-muon universality to the level of 0.1%.

UR - http://www.scopus.com/inward/record.url?scp=84939621112&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84939621112&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.115.071801

DO - 10.1103/PhysRevLett.115.071801

M3 - Article

AN - SCOPUS:84939621112

SN - 0031-9007

VL - 115

JO - Physical Review Letters

JF - Physical Review Letters

IS - 7

M1 - 071801

ER -

Improved Measurement of the π → eν Branching Ratio

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this