دورية أكاديمية
Experimental tests of lepton universality in tau decay
| العنوان: | Experimental tests of lepton universality in tau decay |
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| المؤلفون: | Anastassov, A, Blinov, S, Duboscq, J, Fisher, K, Fujino, D, Fulton, R, Gan, K, Hart, T, Honscheid, K, Kagan, H, Kass, R, Lee, J, Spencer, M, Sung, M, Undrus, A, Wanke, R, Wolf, A, Zoeller, M, Nemati, B, Richichi, S, Ross, W, Skubic, P, Wood, M, Bishai, M, Fast, J |
| سنة النشر: | 2016 |
| المجموعة: | Oxford University Research Archive (ORA) |
| الوصف: | The branching fractions for τ→eνντ, μνντ, and hντ are measured using data collected with the CLEO detector at the CESR e+e- collider: Be=0.1776±0.0006±0.0017, Bμ=0.1737±0.0008±0.0018, and Bh=0.1152±0.0005±0.0012, where the first error is statistical, the second systematic, and h refers to either a charged π or K. Also measured is the τ mass, mτ=(1778.2±1.4) MeV. Lepton universality is affirmed by the relative branching fractions (Bμ/Be=0.9777±0.0063±0.0087, Bh/Be=0.6484±0.0041±0.0060) and the charged-current gauge coupling-constant ratios (gμ/ge=1.0026±0.0055, gτ/gμ=0.9990±0.0098). The τ mass result may be recast as a τ neutrino mass limit, mντ<60 MeV at 95% C.L. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | unknown |
| العلاقة: | https://ora.ox.ac.uk/objects/uuid:c4490ba0-090c-423a-a83b-a004cc04efb3Test; https://doi.org/10.1103/PhysRevD.55.2559Test |
| DOI: | 10.1103/PhysRevD.55.2559 |
| الإتاحة: | https://doi.org/10.1103/PhysRevD.55.2559Test https://ora.ox.ac.uk/objects/uuid:c4490ba0-090c-423a-a83b-a004cc04efb3Test |
| حقوق: | info:eu-repo/semantics/embargoedAccess |
| رقم الانضمام: | edsbas.592DE6FC |
| قاعدة البيانات: | BASE |
| DOI: | 10.1103/PhysRevD.55.2559 |
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