Study of the resonant components in the semileptonic decay B0s →D0Kμν

For a future inclusive measurement of the |Vcb| CKM matrix element, the de- cay Bs0 → D0Kμν is analysed. This decay presents three components: res- onant, non-resonant and combinatorial. A study of the resonant component is performed by fitting the mass spectrum m(D0K+) = m(K−π+K+) − m(K−π+) + m(D0)...

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Detalles Bibliográficos
Autores principales: Hernandez Martinez, Oscar Adrian, De Cian, Michel, Li, Peilian
Lenguaje:eng
Publicado: 2023
Materias:
Physics in General
Acceso en línea:http://cds.cern.ch/record/2869755
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author Hernandez Martinez, Oscar Adrian
De Cian, Michel
Li, Peilian
author_facet Hernandez Martinez, Oscar Adrian
De Cian, Michel
Li, Peilian
author_sort Hernandez Martinez, Oscar Adrian
collection CERN
description For a future inclusive measurement of the |Vcb| CKM matrix element, the de- cay Bs0 → D0Kμν is analysed. This decay presents three components: res- onant, non-resonant and combinatorial. A study of the resonant component is performed by fitting the mass spectrum m(D0K+) = m(K−π+K+) − m(K−π+) + m(D0)PDG in which the resonances appear as peaks. In addition to this, hints of the suspected but yet not observed semileptonic decay of a Bs0 into a Ds1(2860)± are reported. The significance found is about 9 standard deviation statistically only, but more detailed tuning needed to deal with some unexpected issues about the PDFs used in the fit.
id cern-2869755
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2023
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spelling cern-28697552023-09-08T19:08:42Zhttp://cds.cern.ch/record/2869755engHernandez Martinez, Oscar AdrianDe Cian, MichelLi, PeilianStudy of the resonant components in the semileptonic decay B0s →D0KμνPhysics in GeneralFor a future inclusive measurement of the |Vcb| CKM matrix element, the de- cay Bs0 → D0Kμν is analysed. This decay presents three components: res- onant, non-resonant and combinatorial. A study of the resonant component is performed by fitting the mass spectrum m(D0K+) = m(K−π+K+) − m(K−π+) + m(D0)PDG in which the resonances appear as peaks. In addition to this, hints of the suspected but yet not observed semileptonic decay of a Bs0 into a Ds1(2860)± are reported. The significance found is about 9 standard deviation statistically only, but more detailed tuning needed to deal with some unexpected issues about the PDFs used in the fit.CERN-STUDENTS-Note-2023-116oai:cds.cern.ch:28697552023-09-08
spellingShingle Physics in General
Hernandez Martinez, Oscar Adrian
De Cian, Michel
Li, Peilian
Study of the resonant components in the semileptonic decay B0s →D0Kμν
title Study of the resonant components in the semileptonic decay B0s →D0Kμν
title_full Study of the resonant components in the semileptonic decay B0s →D0Kμν
title_fullStr Study of the resonant components in the semileptonic decay B0s →D0Kμν
title_full_unstemmed Study of the resonant components in the semileptonic decay B0s →D0Kμν
title_short Study of the resonant components in the semileptonic decay B0s →D0Kμν
title_sort study of the resonant components in the semileptonic decay b0s →d0kμν
topic Physics in General
url http://cds.cern.ch/record/2869755
work_keys_str_mv AT hernandezmartinezoscaradrian studyoftheresonantcomponentsinthesemileptonicdecayb0sd0kmn
AT decianmichel studyoftheresonantcomponentsinthesemileptonicdecayb0sd0kmn
AT lipeilian studyoftheresonantcomponentsinthesemileptonicdecayb0sd0kmn

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