First measurement of the absolute branching fraction of ? ?p?- ? ¯ ?

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dc.authoridOnur Buğra Kolcu / 0000-0002-9177-1286
dc.authorscopusidSerkant Ali Çetin / 34567544400
dc.authorwosidOnur Buğra Kolcu / P-4990-2015
dc.authorwosidSerkant Ali Çetin / AGF-0147-2022
dc.contributor.authorM. Ablikim
dc.contributor.authorM.N, Achasov
dc.contributor.authorP. Adlarson
dc.contributor.authorS. Ahmed
dc.contributor.authorM. Albrecht
dc.contributor.authorKolcu, Onur Buğra
dc.contributor.authorÇetin, Serkant Ali
dc.date.accessioned2021-09-28T08:38:17Z
dc.date.available2021-09-28T08:38:17Z
dc.date.issued2021en_US
dc.departmentİstinye Üniversitesien_US
dc.description.abstractThe absolute branching fraction of ??p??¯?? is reported for the first time based on an e+e? annihilation sample of 10×109??J/? events collected with the BESIII detector at ?s=3.097??GeV. The branching fraction is determined to be B(??p??¯??)=[1.48±0.21(stat)±0.08(syst)]×10?4, which is improved by about 30% in precision over the previous indirect measurements. Combining this result with the world average of B(??pe?¯?e), we obtain the ratio {[?(??p??¯??)]/[?(??pe?¯?e)]} to be 0.178±0.028, which agrees with the standard model prediction assuming lepton flavor universality. The asymmetry of the branching fractions of ??p??¯?? and ¯??¯p?+?? is also determined, and no evidence for CP violation is found.en_US
dc.identifier.citationAblikim, M., Achasov, M. N., Adlarson, P., Ahmed, S., Albrecht, M., Aliberti, R., Amoroso, A., An, M. R., An, Q., Bai, X. H., Bai, Y., Bakina, O., Ferroli, R. B., Balossino, I., Ban, Y., Begzsuren, K., Berger, N., Bertani, M., Bettoni, D., … Collaboration, B. (2021). First Measurement of the Absolute Branching Fraction of $\Lambda \to p \mu^- \bar{\nu}_{\mu}$. https://doi.org/10.1103/PhysRevLett.127.121802en_US
dc.identifier.doi10.1103/PhysRevLett.127.121802en_US
dc.identifier.endpage8en_US
dc.identifier.issn0031-9007en_US
dc.identifier.issue12en_US
dc.identifier.pmid34597097en_US
dc.identifier.scopus2-s2.0-85115305739en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage1en_US
dc.identifier.urihttps://doi.org/10.1103/PhysRevLett.127.121802
dc.identifier.urihttps://hdl.handle.net/20.500.12713/2106
dc.identifier.volume127en_US
dc.identifier.wosWOS:000704665100004en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.institutionauthorKolcu, Onur Buğra
dc.institutionauthorÇetin, Serkant Ali
dc.language.isoenen_US
dc.publisherAmerican Physical Societyen_US
dc.relation.ispartofPhysical Review Lettersen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectAbsoluteen_US
dc.subjectBranchingen_US
dc.subjectMeasurementen_US
dc.titleFirst measurement of the absolute branching fraction of ? ?p?- ? ¯ ?en_US
dc.typeArticleen_US

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