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https://hdl.handle.net/2445/131620| Title: | Measurements of the τ mass and the mass difference of the τ+ and τ− at BABAR |
| Author: | Garra Ticó, Jordi Graugés Pous, Eugeni BABAR Collaboration |
| Keywords: | Física de partícules Experiments Particle physics Experiments |
| Issue Date: | 20-Nov-2009 |
| Publisher: | American Physical Society |
| Abstract: | We present the result from a precision measurement of the mass of the τ lepton, M τ , based on 423 fb − 1 of data recorded at the Υ ( 4 S ) resonance with the BABAR detector. Using a pseudomass endpoint method, we determine the mass to be 1776.68 ± 0.12 ( stat ) ± 0.41 ( syst ) MeV . We also measure the mass difference between the τ + and τ − , and obtain ( M τ + − M τ − ) / M τ AVG = ( − 3.4 ± 1.3 ( stat ) ± 0.3 ( syst ) ) × 10 − 4 , where M τ AVG is the average value of M τ + and M τ − . |
| Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.80.092005 |
| It is part of: | Physical Review D, 2009, vol. 80, num. 9, p. 092005 |
| URI: | https://hdl.handle.net/2445/131620 |
| Related resource: | https://doi.org/10.1103/PhysRevD.80.092005 |
| ISSN: | 1550-7998 |
| Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 577732.pdf | 629.87 kB | Adobe PDF | View/Open |
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