First branching fraction measurement of the suppressed decay Xi(0)(c) -> pi(-) Lambda(+)(c)
The Ξ0c baryon is unstable and usually decays into charmless final states by the c→su¯d transition. It can, however, also disintegrate into a π− meson and a Λ+c baryon via s quark decay or via cs→dc weak scattering. The interplay between the latter two processes governs the size of the branching fra...
| Autores: | , , , , , , , , , , , , , , |
|---|---|
| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2020 |
| País: | España |
| Recursos: | Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| Repositorio: | Recercat. Dipósit de la Recerca de Catalunya |
| OAI Identifier: | oai:recercat.cat:2445/174897 |
| Acesso em linha: | https://hdl.handle.net/2445/174897 |
| Access Level: | acceso abierto |
| Palavra-chave: | Gran Col·lisionador d'Hadrons Mesons (Física nuclear) Barions Large Hadron Collider (France and Switzerland) Mesons (Nuclear physics) Baryons |
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First branching fraction measurement of the suppressed decay Xi(0)(c) -> pi(-) Lambda(+)(c)Alfonso Albero, AlejandroCamboni, AlessandroGarcía Moreno, PaulaGarrido Beltrán, LluísGascón Fora, DavidGironella Gironell, PereGómez Fernández, S.Graciani Díaz, RicardoGraugés Pous, EugeniManera Escalero, R.Mauricio, J.Calvo Gómez, MíriamGolobardes, ElisabetVilasis-Cardona, XavierLHCb CollaborationGran Col·lisionador d'HadronsMesons (Física nuclear)BarionsLarge Hadron Collider (France and Switzerland)Mesons (Nuclear physics)BaryonsThe Ξ0c baryon is unstable and usually decays into charmless final states by the c→su¯d transition. It can, however, also disintegrate into a π− meson and a Λ+c baryon via s quark decay or via cs→dc weak scattering. The interplay between the latter two processes governs the size of the branching fraction B(Ξ0c→π−Λ+c), first measured here to be (0.55±0.02±0.18)%, where the first uncertainty is statistical and second systematic. This result is compatible with the larger of the theoretical predictions that connect models of hyperon decays using partially conserved axial currents and SU(3) symmetry with those involving the heavy-quark expansion and heavy-quark symmetry. In addition, the branching fraction of the normalization channel, B(Ξ+c→pK−π+)=(1.135±0.002±0.387)% is measured.American Physical Society2021202120202021info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion11 p.application/pdfapplication/pdfhttps://hdl.handle.net/2445/174897Articles publicats en revistes (Física Quàntica i Astrofísica)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésReproducció del document publicat a: https://doi.org/10.1103/PhysRevD.102.071101Physical Review D, 2020, vol. 102 , num. 7, p. 071101https://doi.org/10.1103/PhysRevD.102.071101cc-by (c) Aaij, R., 2020http://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccessoai:recercat.cat:2445/1748972026-05-29T05:05:01Z |
| dc.title.none.fl_str_mv |
First branching fraction measurement of the suppressed decay Xi(0)(c) -> pi(-) Lambda(+)(c) |
| title |
First branching fraction measurement of the suppressed decay Xi(0)(c) -> pi(-) Lambda(+)(c) |
| spellingShingle |
First branching fraction measurement of the suppressed decay Xi(0)(c) -> pi(-) Lambda(+)(c) Alfonso Albero, Alejandro Gran Col·lisionador d'Hadrons Mesons (Física nuclear) Barions Large Hadron Collider (France and Switzerland) Mesons (Nuclear physics) Baryons |
| title_short |
First branching fraction measurement of the suppressed decay Xi(0)(c) -> pi(-) Lambda(+)(c) |
| title_full |
First branching fraction measurement of the suppressed decay Xi(0)(c) -> pi(-) Lambda(+)(c) |
| title_fullStr |
First branching fraction measurement of the suppressed decay Xi(0)(c) -> pi(-) Lambda(+)(c) |
| title_full_unstemmed |
First branching fraction measurement of the suppressed decay Xi(0)(c) -> pi(-) Lambda(+)(c) |
| title_sort |
First branching fraction measurement of the suppressed decay Xi(0)(c) -> pi(-) Lambda(+)(c) |
| dc.creator.none.fl_str_mv |
Alfonso Albero, Alejandro Camboni, Alessandro García Moreno, Paula Garrido Beltrán, Lluís Gascón Fora, David Gironella Gironell, Pere Gómez Fernández, S. Graciani Díaz, Ricardo Graugés Pous, Eugeni Manera Escalero, R. Mauricio, J. Calvo Gómez, Míriam Golobardes, Elisabet Vilasis-Cardona, Xavier LHCb Collaboration |
| author |
Alfonso Albero, Alejandro |
| author_facet |
Alfonso Albero, Alejandro Camboni, Alessandro García Moreno, Paula Garrido Beltrán, Lluís Gascón Fora, David Gironella Gironell, Pere Gómez Fernández, S. Graciani Díaz, Ricardo Graugés Pous, Eugeni Manera Escalero, R. Mauricio, J. Calvo Gómez, Míriam Golobardes, Elisabet Vilasis-Cardona, Xavier LHCb Collaboration |
| author_role |
author |
| author2 |
Camboni, Alessandro García Moreno, Paula Garrido Beltrán, Lluís Gascón Fora, David Gironella Gironell, Pere Gómez Fernández, S. Graciani Díaz, Ricardo Graugés Pous, Eugeni Manera Escalero, R. Mauricio, J. Calvo Gómez, Míriam Golobardes, Elisabet Vilasis-Cardona, Xavier LHCb Collaboration |
| author2_role |
author author author author author author author author author author author author author author |
| dc.subject.none.fl_str_mv |
Gran Col·lisionador d'Hadrons Mesons (Física nuclear) Barions Large Hadron Collider (France and Switzerland) Mesons (Nuclear physics) Baryons |
| topic |
Gran Col·lisionador d'Hadrons Mesons (Física nuclear) Barions Large Hadron Collider (France and Switzerland) Mesons (Nuclear physics) Baryons |
| description |
The Ξ0c baryon is unstable and usually decays into charmless final states by the c→su¯d transition. It can, however, also disintegrate into a π− meson and a Λ+c baryon via s quark decay or via cs→dc weak scattering. The interplay between the latter two processes governs the size of the branching fraction B(Ξ0c→π−Λ+c), first measured here to be (0.55±0.02±0.18)%, where the first uncertainty is statistical and second systematic. This result is compatible with the larger of the theoretical predictions that connect models of hyperon decays using partially conserved axial currents and SU(3) symmetry with those involving the heavy-quark expansion and heavy-quark symmetry. In addition, the branching fraction of the normalization channel, B(Ξ+c→pK−π+)=(1.135±0.002±0.387)% is measured. |
| publishDate |
2020 |
| dc.date.none.fl_str_mv |
2020 2021 2021 2021 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
| format |
article |
| status_str |
publishedVersion |
| dc.identifier.none.fl_str_mv |
https://hdl.handle.net/2445/174897 |
| url |
https://hdl.handle.net/2445/174897 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.relation.none.fl_str_mv |
Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.102.071101 Physical Review D, 2020, vol. 102 , num. 7, p. 071101 https://doi.org/10.1103/PhysRevD.102.071101 |
| dc.rights.none.fl_str_mv |
cc-by (c) Aaij, R., 2020 http://creativecommons.org/licenses/by/3.0/es/ info:eu-repo/semantics/openAccess |
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cc-by (c) Aaij, R., 2020 http://creativecommons.org/licenses/by/3.0/es/ |
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openAccess |
| dc.format.none.fl_str_mv |
11 p. application/pdf application/pdf |
| dc.publisher.none.fl_str_mv |
American Physical Society |
| publisher.none.fl_str_mv |
American Physical Society |
| dc.source.none.fl_str_mv |
Articles publicats en revistes (Física Quàntica i Astrofísica) reponame:Recercat. Dipósit de la Recerca de Catalunya instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
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Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
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Recercat. Dipósit de la Recerca de Catalunya |
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Recercat. Dipósit de la Recerca de Catalunya |
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