Analysis of Λ0b→ pK−μ+μ− decays

The LHCb collaboration

doi:10.1007/JHEP12(2024)147

Analysis of Λ0b→ pK−μ+μ− decays

The LHCb collaboration

Producció científica: Article en revista indexada › Article › Avaluat per experts

Resum

The differential branching fraction and angular coefficients of Formula Presented decays are measured in bins of the dimuon mass squared and dihadron mass. The analysis is performed using a data set corresponding to 9 fb−1 of integrated luminosity collected with the LHCb detector between 2011 and 2018. The data are consistent with receiving contributions from a mixture of Λ resonances with different spin-parity quantum numbers. The angular coefficients show a pattern of vector-axial vector interference that is a characteristic of the type of flavour-changing neutral-current transition relevant for these decays.

Idioma original	Anglès
Número d’article	147
Revista	Journal of High Energy Physics
Volum	2024
Número	12
DOIs	https://doi.org/10.1007/JHEP12(2024)147
Estat de la publicació	Publicada - de des. 2025

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10.1007/JHEP12(2024)147

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title = "Analysis of Λ0b→ pK−μ+μ− decays",

abstract = "The differential branching fraction and angular coefficients of Formula Presented decays are measured in bins of the dimuon mass squared and dihadron mass. The analysis is performed using a data set corresponding to 9 fb−1 of integrated luminosity collected with the LHCb detector between 2011 and 2018. The data are consistent with receiving contributions from a mixture of Λ resonances with different spin-parity quantum numbers. The angular coefficients show a pattern of vector-axial vector interference that is a characteristic of the type of flavour-changing neutral-current transition relevant for these decays.",

keywords = "B Physics, Flavour Changing Neutral Currents, Flavour Physics, Hadron-Hadron Scattering",

author = "{The LHCb collaboration} and R. Aaij and Abdelmotteleb, {A. S.W.} and {Abellan Beteta}, C. and F. Abudin{\'e}n and T. Ackernley and Adefisoye, {A. A.} and B. Adeva and M. Adinolfi and P. Adlarson and C. Agapopoulou and Aidala, {C. A.} and Z. Ajaltouni and S. Akar and K. Akiba and P. Albicocco and J. Albrecht and F. Alessio and M. Alexander and Z. Aliouche and Cartelle, {P. Alvarez} and R. Amalric and S. Amato and Amey, {J. L.} and Y. Amhis and L. An and L. Anderlini and M. Andersson and A. Andreianov and P. Andreola and M. Andreotti and D. Andreou and A. Anelli and D. Ao and F. Archilli and M. Argenton and Cuendis, {S. Arguedas} and A. Artamonov and M. Artuso and E. Aslanides and {Da Silva}, {R. Ata{\'i}de} and M. Atzeni and B. Audurier and D. Bacher and {Bachiller Perea}, I. and S. Bachmann and M. Bachmayer and Back, {J. J.} and Gomez, {M. Calvo} and E. Golobardes and X. Vilasis-Cardona",

year = "2025",

month = dec,

doi = "10.1007/JHEP12(2024)147",

language = "English",

volume = "2024",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

publisher = "Springer Verlag",

number = "12",

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AU - Abdelmotteleb, A. S.W.

AU - Abellan Beteta, C.

AU - Abudinén, F.

AU - Ackernley, T.

AU - Adefisoye, A. A.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Adlarson, P.

AU - Agapopoulou, C.

AU - Aidala, C. A.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Akiba, K.

AU - Albicocco, P.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Aliouche, Z.

AU - Cartelle, P. Alvarez

AU - Amalric, R.

AU - Amato, S.

AU - Amey, J. L.

AU - Amhis, Y.

AU - An, L.

AU - Anderlini, L.

AU - Andersson, M.

AU - Andreianov, A.

AU - Andreola, P.

AU - Andreotti, M.

AU - Andreou, D.

AU - Anelli, A.

AU - Ao, D.

AU - Archilli, F.

AU - Argenton, M.

AU - Cuendis, S. Arguedas

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Da Silva, R. Ataíde

AU - Atzeni, M.

AU - Audurier, B.

AU - Bacher, D.

AU - Bachiller Perea, I.

AU - Bachmann, S.

AU - Bachmayer, M.

AU - Back, J. J.

AU - Gomez, M. Calvo

AU - Golobardes, E.

AU - Vilasis-Cardona, X.

PY - 2025/12

Y1 - 2025/12

N2 - The differential branching fraction and angular coefficients of Formula Presented decays are measured in bins of the dimuon mass squared and dihadron mass. The analysis is performed using a data set corresponding to 9 fb−1 of integrated luminosity collected with the LHCb detector between 2011 and 2018. The data are consistent with receiving contributions from a mixture of Λ resonances with different spin-parity quantum numbers. The angular coefficients show a pattern of vector-axial vector interference that is a characteristic of the type of flavour-changing neutral-current transition relevant for these decays.

AB - The differential branching fraction and angular coefficients of Formula Presented decays are measured in bins of the dimuon mass squared and dihadron mass. The analysis is performed using a data set corresponding to 9 fb−1 of integrated luminosity collected with the LHCb detector between 2011 and 2018. The data are consistent with receiving contributions from a mixture of Λ resonances with different spin-parity quantum numbers. The angular coefficients show a pattern of vector-axial vector interference that is a characteristic of the type of flavour-changing neutral-current transition relevant for these decays.

KW - B Physics

KW - Flavour Changing Neutral Currents

KW - Flavour Physics

KW - Hadron-Hadron Scattering

UR - http://www.scopus.com/inward/record.url?scp=105000102237&partnerID=8YFLogxK

U2 - 10.1007/JHEP12(2024)147

DO - 10.1007/JHEP12(2024)147

M3 - Article

AN - SCOPUS:105000102237

SN - 1126-6708

VL - 2024

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 12

M1 - 147

ER -

Analysis of Λ0b→ pK−μ+μ− decays

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