Improved Measurement of the π→eν Branching Ratio

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.; Mischke, R. E.; Numao, T.; Protopopescu, D.; Sher, A.; Sullivan, T.; Vavilov, D.; Yamada, K.

doi:10.1103/PhysRevLett.115.071801

Title: Improved Measurement of the $π \to e ν$ Branching Ratio

Journal Article · Sat Aug 01 00:00:00 EDT 2015 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.115.071801· OSTI ID:1210170

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.; Mischke, R. E. more »

A new measurement of the branching ratio R_e/μ=Γ(π⁺ → e⁺ν + π⁺ → e⁺νγ)/Γ(π+ → μ+ν + π⁺→μ+νγ) resulted in R^exp_e/μ=[1.2344±0.0023(stat)±0.0019(syst)] x 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%.

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Research Organization:: Brookhaven National Laboratory (BNL), Upton, NY (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP)

Contributing Organization:: PIENU Collaboration

Grant/Contract Number:: SC00112704

OSTI ID:: 1210170

Report Number(s):: BNL-108222-2015-JA; PRLTAO; R&D Project: PO-022; KA2201020; TRN: US1600770

Journal Information:: Physical Review Letters, Vol. 115, Issue 7; ISSN 0031-9007

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 52 works

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References (26)

High purity pion beam at TRIUMF Aguilar-Arevalo, A.; Blecher, M.; Bryman, D. A. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 609, Issue 2-3 https://doi.org/10.1016/j.nima.2009.08.053	journal	October 2009
Branching ratio for the rare pion decay into positron and neutrino Czapek, G.; Federspiel, A.; Flükiger, A. Physical Review Letters, Vol. 70, Issue 1 https://doi.org/10.1103/PhysRevLett.70.17	journal	January 1993
Study of a large NaI(Tl) crystal Aguilar-Arevalo, A.; Aoki, M.; Blecher, M. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 621, Issue 1-3 https://doi.org/10.1016/j.nima.2010.05.037	journal	September 2010
Review of Particle Physics Tanabashi, M.; Hagiwara, K.; Hikasa, K. Deutsches Elektronen-Synchrotron, DESY, Hamburg https://doi.org/10.3204/pubdb-2018-03100	text	January 2018
General theory of weak processes involving neutrinos. I. Leptonic pseudoscalar-meson decays, with associated tests for, and bounds on, neutrino masses and lepton mixing Shrock, Robert E. Physical Review D, Vol. 24, Issue 5 https://doi.org/10.1103/PhysRevD.24.1232	journal	September 1981
Search for massive neutrinos in the decay $π \to e ν$ Aoki, M.; Blecher, M.; Bryman, D. A. Physical Review D, Vol. 84, Issue 5 https://doi.org/10.1103/PhysRevD.84.052002	journal	September 2011
Measurement of the $π^{+}$ → $e^{+}$ ν branching ratio Britton, D. I.; Ahmad, S.; Bryman, D. A. Physical Review Letters, Vol. 68, Issue 20 https://doi.org/10.1103/PhysRevLett.68.3000	journal	May 1992
Review of Particle Physics Olive, K. A. Chinese Physics C, Vol. 38, Issue 9 https://doi.org/10.1088/1674-1137/38/9/090001	journal	August 2014
Review of Particle Physics Group, Particle Data; Amsler, C.; Doser, M. Elsevier https://doi.org/10.5167/uzh-11249	text	January 2008
Study of a Large NaI(Tl) Crystal Aguilar-Arevalo, A.; Aoki, M.; Blecher, M. arXiv https://doi.org/10.48550/arxiv.1003.2235	text	January 2010
Radiative corrections to $π_{l 2}$ decays Marciano, William J.; Sirlin, A. Physical Review Letters, Vol. 71, Issue 22 https://doi.org/10.1103/PhysRevLett.71.3629	journal	November 1993
Detector for measuring the <mml:math altimg="si0009.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd" xmlns:sa="http://www.elsevier.com/xml/common/struct-aff/dtd"><mml:msup><mml:mrow><mml:mi mathvariant="normal">π</mml:mi></mml:mrow><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:msup><mml:mo>→</mml:mo><mml:msup><mml:mrow><mml:mi mathvariant="normal">e</mml:mi></mml:mrow><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:msup><mml:msub><mml:mrow><mml:mi mathvariant="normal">ν</mml:mi></mml:mrow><mml:mrow><mml:mi>e</mml:mi></mml:mrow></mml:msub></mml:math> branching fraction Aguilar-Arevalo, A. A.; Aoki, M.; Blecher, M. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 791 https://doi.org/10.1016/j.nima.2015.04.004	journal	August 2015
Test of Lepton Universality Using $B^{+} \to K^{+} ℓ^{+} ℓ^{-}$ Decays Aaij, R.; Adeva, B.; Adinolfi, M. Physical Review Letters, Vol. 113, Issue 15 https://doi.org/10.1103/PhysRevLett.113.151601	journal	October 2014
CsI endcap photon detector for a K/sup +/→π/sup +/ν/spl nu Chiang, I. -H.; Garber, E.; Inagaki, T. IEEE Transactions on Nuclear Science, Vol. 42, Issue 4 https://doi.org/10.1109/23.467813	journal	January 1995
π/ K → e ν̄ _e branching ratios to O ( e ² p ⁴ ) in Chiral Perturbation Theory Cirigliano, Vincenzo; Rosell, Ignasi Journal of High Energy Physics, Vol. 2007, Issue 10 https://doi.org/10.1088/1126-6708/2007/10/005	journal	October 2007
Detection of a particle shower at the Glashow resonance with IceCube Aartsen, M. G.; Abbasi, R.; Ackermann, M. Nature, Vol. 591, Issue 7849 https://doi.org/10.1038/s41586-021-03256-1	journal	March 2021
Review of Particle Physics Beringer, J.; Arguin, J.; Barnett, R. Deutsches Elektronen-Synchrotron, DESY, Hamburg https://doi.org/10.3204/phppubdb-24149	text	January 2012
Rare Kaon and Pion Decays: Incisive Probes for New Physics Beyond the Standard Model Bryman, Douglas; Marciano, William J.; Tschirhart, Robert Annual Review of Nuclear and Particle Science, Vol. 61, Issue 1 https://doi.org/10.1146/annurev-nucl-102010-130431	journal	November 2011
New measurement of the π → μνγ decay Bressi, Giacomo; Carugno, Giovanni; Cerdonio, Simonetta Nuclear Physics B, Vol. 513, Issue 3 https://doi.org/10.1016/S0550-3213(97)00734-7	journal	March 1998
Polarized Compton Scattering from the Proton Blanpied, G.; Blecher, M.; Caracappa, A. Physical Review Letters, Vol. 76, Issue 7 https://doi.org/10.1103/PhysRevLett.76.1023	journal	February 1996
Geant4—a simulation toolkit Agostinelli, S.; Allison, J.; Amako, K. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 506, Issue 3 https://doi.org/10.1016/S0168-9002(03)01368-8	journal	July 2003
Model independent constraints on leptoquarks from rare processes Davidson, Sacha; Bailey, David; Campbell, Bruce A. Zeitschrift f�r Physik C Particles and Fields, Vol. 61, Issue 4 https://doi.org/10.1007/BF01552629	journal	December 1994
Improved search for massive neutrinos in $π^{+} \to e^{+} ν$ decay Britton, D. I.; Ahmad, S.; Bryman, D. A. Physical Review D, Vol. 46, Issue 3 https://doi.org/10.1103/PhysRevD.46.R885	journal	August 1992
Pion leptonic decays and supersymmetry Ramsey-Musolf, Michael J.; Su, Shufang; Tulin, Sean Physical Review D, Vol. 76, Issue 9 https://doi.org/10.1103/PhysRevD.76.095017	journal	November 2007
Measurement of the $π^{+} \to e^{+} ν$ branching ratio Britton, D. I.; Ahmad, S.; Bryman, D. A. Physical Review D, Vol. 49, Issue 1 https://doi.org/10.1103/PhysRevD.49.28	journal	January 1994
Unified approach to the classical statistical analysis of small signals Feldman, Gary J.; Cousins, Robert D. Physical Review D, Vol. 57, Issue 7 https://doi.org/10.1103/PhysRevD.57.3873	journal	April 1998

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Nucleon Axial Radius and Muonic Hydrogen - A New Analysis and Review Hill, Richard J.; Kammel, Peter; Marciano, William J. arXiv https://doi.org/10.48550/arxiv.1708.08462	text	January 2017
New vector-like fermions and flavor physics Ishiwata, Koji; Ligeti, Zoltan; Wise, Mark B. Journal of High Energy Physics, Vol. 2015, Issue 10 https://doi.org/10.1007/jhep10(2015)027	journal	October 2015
Flavor Physics and Flavor Anomalies in Minimal Fundamental Partial Compositeness Sannino, Francesco; Stangl, Peter; Straub, David M. arXiv https://doi.org/10.48550/arxiv.1712.07646	text	January 2017
Improved search for heavy neutrinos in the decay $π \to e ν$ Aguilar-Arevalo, A.; Aoki, M.; Blecher, M. Physical Review D, Vol. 97, Issue 7 https://doi.org/10.1103/physrevd.97.072012	journal	April 2018
Precision measurement and interpretation of inclusive $$W^+$$ W + , $$W^-$$ W - and $$Z/\gamma ^*$$ Z / γ ∗ production cross sections with the ATLAS detector Aaboud, M.; Aad, G.; Abbott, B. The European Physical Journal C, Vol. 77, Issue 6 https://doi.org/10.1140/epjc/s10052-017-4911-9	journal	June 2017
Nucleon axial radius and muonic hydrogen—a new analysis and review Hill, Richard J.; Kammel, Peter; Marciano, William J. Reports on Progress in Physics, Vol. 81, Issue 9 https://doi.org/10.1088/1361-6633/aac190	journal	July 2018
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Flavor physics and flavor anomalies in minimal fundamental partial compositeness Sannino, Francesco; Stangl, Peter; Straub, David M. Physical Review D, Vol. 97, Issue 11 https://doi.org/10.1103/physrevd.97.115046	journal	June 2018

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