PhysRevD.77.112002.pdf (291.02 kB)
Measurement of the t-??p-p+p-?t branching fraction and a search for a second-class current in the t-??'(958)p-?t decay
journal contribution
posted on 2023-06-08, 07:28 authored by B Aubert, Fabrizio SalvatoreFabrizio Salvatore, BABAR CollaborationThe t-??p-p+p-?t decay with the ???? mode is studied using 384??fb-1 of data collected by the BABAR detector. The branching fraction is measured to be (1.60±0.05±0.11)×10-4. It is found that t-?f1(1285)p-?t??p-p+p-?t is the dominant decay mode with a branching fraction of (1.11±0.06±0.05)×10-4. The first error on the branching fractions is statistical and the second systematic. Note that no particle identification algorithm is applied to the charged tracks to distinguish pions from kaons. In addition, a 90% confidence level upper limit on the branching fraction of the t-??'(958)p-?t decay is measured to be 7.2×10-6. This last decay proceeds through a second-class current and is expected to be forbidden in the limit of isospin symmetry.
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Journal
Physical Review DISSN
1550-7998Publisher
American Physical SocietyExternal DOI
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11Volume
77Page range
112002Department affiliated with
- Physics and Astronomy Publications
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- Yes
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- Yes
Legacy Posted Date
2012-02-06First Open Access (FOA) Date
2016-03-22First Compliant Deposit (FCD) Date
2016-11-17Usage metrics
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