Studies of τ-→ηK-ντ and τ-→ηπ-ντ at BABAR and a search for a second-class current
We report on analyses of tau lepton decays τ-→ηK-ντ [tau superscript - → eta kappa superscript - nu subscript tau] and τ-→ηπ-ντ tau superscript - → eta pi superscript - nu subscript tau], with η→π+π-π0 [eta → pi superscript + pi superscript - pi superscript 0], , using 470 fb-1 [fb superscript -1]...
| Main Authors: | , , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
American Physical Society
2011
|
| Online Access: | http://hdl.handle.net/1721.1/63800 |
| _version_ | 1811095596235227136 |
|---|---|
| author | Dujmic, Denis Sciolla, Gabriella Zhao, M. Cowan, Ray F |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Dujmic, Denis Sciolla, Gabriella Zhao, M. Cowan, Ray F |
| author_sort | Dujmic, Denis |
| collection | MIT |
| description | We report on analyses of tau lepton decays τ-→ηK-ντ [tau superscript - → eta kappa superscript - nu subscript tau] and τ-→ηπ-ντ tau superscript - → eta pi superscript - nu subscript tau], with η→π+π-π0 [eta → pi superscript + pi superscript - pi superscript 0], , using 470 fb-1 [fb superscript -1] of data from the BABAR experiment at PEP-II, collected at center-of-mass energies at and near the Υ(4S) [upsilon (4S)] resonance. We measure the branching fraction for the τ-→ηK-ντ [tau superscript - → eta kappa superscript - nu subscript tau] decay mode, B(τ-→ηK-ντ)=(1.42±0.11(stat)±0.07(syst))×10-4 [Beta (tau superscript - → eta kappa superscript - nu subscript tau) =(1.42±0.11(stat)±0.07(syst)) times 10 superscript 4], and report a 95% confidence level upper limit for the second-class current process τ-→ηπ-ντ, B(τ-→ηπ-ντ)<9.9×10-5 [tau superscript - → eta pi superscript - nu subscript tau, beta (tau superscript - → eta pi superscript - nu subscript tau),9.9 times 10 superscript 5]. |
| first_indexed | 2024-09-23T16:20:26Z |
| format | Article |
| id | mit-1721.1/63800 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T16:20:26Z |
| publishDate | 2011 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/638002023-02-26T07:41:38Z Studies of τ-→ηK-ντ and τ-→ηπ-ντ at BABAR and a search for a second-class current Studies of tau superscript - → eta kappa superscript - nu subscript tau and tau superscript - → eta pi superscript - nu subscript tau at BABAR and a search for a second-class current Dujmic, Denis Sciolla, Gabriella Zhao, M. Cowan, Ray F Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Sciolla, Gabriella Cowan, Ray Franklin Dujmic, Denis Sciolla, Gabriella Zhao, Min Liang We report on analyses of tau lepton decays τ-→ηK-ντ [tau superscript - → eta kappa superscript - nu subscript tau] and τ-→ηπ-ντ tau superscript - → eta pi superscript - nu subscript tau], with η→π+π-π0 [eta → pi superscript + pi superscript - pi superscript 0], , using 470 fb-1 [fb superscript -1] of data from the BABAR experiment at PEP-II, collected at center-of-mass energies at and near the Υ(4S) [upsilon (4S)] resonance. We measure the branching fraction for the τ-→ηK-ντ [tau superscript - → eta kappa superscript - nu subscript tau] decay mode, B(τ-→ηK-ντ)=(1.42±0.11(stat)±0.07(syst))×10-4 [Beta (tau superscript - → eta kappa superscript - nu subscript tau) =(1.42±0.11(stat)±0.07(syst)) times 10 superscript 4], and report a 95% confidence level upper limit for the second-class current process τ-→ηπ-ντ, B(τ-→ηπ-ντ)<9.9×10-5 [tau superscript - → eta pi superscript - nu subscript tau, beta (tau superscript - → eta pi superscript - nu subscript tau),9.9 times 10 superscript 5]. United States. Dept. of Energy National Science Foundation (U.S.) Alfred P. Sloan Foundation 2011-06-09T16:54:21Z 2011-06-09T16:54:21Z 2011-02 2010-11 Article http://purl.org/eprint/type/JournalArticle 1550-7998 1550-2368 http://hdl.handle.net/1721.1/63800 del Amo Sanchez, P. et al. “Studies of τ^{-}→ηK^{-}ν_{τ} and τ^{-}→ηπ^{-}ν_{τ} at BABAR and a search for a second-class current.” Physical Review D 83.3 (2011) : n. pag. © 2011 American Physical Society en_US http://dx.doi.org/10.1103/PhysRevD.83.032002 Physical review D Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS |
| spellingShingle | Dujmic, Denis Sciolla, Gabriella Zhao, M. Cowan, Ray F Studies of τ-→ηK-ντ and τ-→ηπ-ντ at BABAR and a search for a second-class current |
| title | Studies of τ-→ηK-ντ and τ-→ηπ-ντ at BABAR and a search for a second-class current |
| title_full | Studies of τ-→ηK-ντ and τ-→ηπ-ντ at BABAR and a search for a second-class current |
| title_fullStr | Studies of τ-→ηK-ντ and τ-→ηπ-ντ at BABAR and a search for a second-class current |
| title_full_unstemmed | Studies of τ-→ηK-ντ and τ-→ηπ-ντ at BABAR and a search for a second-class current |
| title_short | Studies of τ-→ηK-ντ and τ-→ηπ-ντ at BABAR and a search for a second-class current |
| title_sort | studies of τ ηk ντ and τ ηπ ντ at babar and a search for a second class current |
| url | http://hdl.handle.net/1721.1/63800 |
| work_keys_str_mv | AT dujmicdenis studiesoftēkntandtēpntatbabarandasearchforasecondclasscurrent AT sciollagabriella studiesoftēkntandtēpntatbabarandasearchforasecondclasscurrent AT zhaom studiesoftēkntandtēpntatbabarandasearchforasecondclasscurrent AT cowanrayf studiesoftēkntandtēpntatbabarandasearchforasecondclasscurrent AT dujmicdenis studiesoftausuperscriptetakappasuperscriptnusubscripttauandtausuperscriptetapisuperscriptnusubscripttauatbabarandasearchforasecondclasscurrent AT sciollagabriella studiesoftausuperscriptetakappasuperscriptnusubscripttauandtausuperscriptetapisuperscriptnusubscripttauatbabarandasearchforasecondclasscurrent AT zhaom studiesoftausuperscriptetakappasuperscriptnusubscripttauandtausuperscriptetapisuperscriptnusubscripttauatbabarandasearchforasecondclasscurrent AT cowanrayf studiesoftausuperscriptetakappasuperscriptnusubscripttauandtausuperscriptetapisuperscriptnusubscripttauatbabarandasearchforasecondclasscurrent |