Search for D∗(2007)0 → μ+μ− in B− → π−μ+μ− decays

R. Aaij; A. S. W. Abdelmotteleb; C. Abellan Beteta; F. Abudinen; T. Ackernley; B. Adeva; M. Adinolfi; P. Adlarson; H. Afsharnia; C. Agapopoulou; C. A. Aidala; Z. Ajaltouni; S. Akar; K. Akiba; J. Albrecht; F. Alessio; M. Alexander; A. Alfonso Albero; Z. Aliouche; P. Alvarez Cartelle; R. Amalric; S. Amato; J. L. Amey; Y. Amhis; L. An; L. Anderlini; M. Andersson; A. Andreianov; M. Andreotti; D. Andreou; D. Ao; F. Archilli; A. Artamonov; M. Artuso; E. Aslanides; M. Atzeni; B. Audurier; S. Bachmann; M. Bachmayer; J. J. Back; A. Bailly-reyre; P. Baladron Rodriguez; V. Balagura; W. Baldini; J. Baptista de Souza Leite; M. Barbetti; R. J. Barlow; S. Barsuk; W. Barter; M. Bartolini; LHCb collaboration; Carolina da silva Bolognani; Daniel Hugo Cámpora Pérez; Jacco de Vries; Miriam Lucio Martinez; Marcel Merk; Davide Nicotra; Chris Pawley; Keri Vos

doi:10.1140/epjc/s10052-023-11759-6

Search for D∗(2007)0 → μ+μ− in B− → π−μ+μ− decays

R. Aaij
, A. S. W. Abdelmotteleb
, C. Abellan Beteta
, F. Abudinen
, T. Ackernley
, B. Adeva
, M. Adinolfi
, P. Adlarson
, H. Afsharnia
, C. Agapopoulou
, C. A. Aidala
, Z. Ajaltouni
, S. Akar
, K. Akiba
, J. Albrecht
, F. Alessio
, M. Alexander
, A. Alfonso Albero
, Z. Aliouche
, P. Alvarez Cartelle

R. Amalric, S. Amato, J. L. Amey, Y. Amhis, L. An, L. Anderlini, M. Andersson, A. Andreianov, M. Andreotti, D. Andreou, D. Ao, F. Archilli, A. Artamonov, M. Artuso, E. Aslanides, M. Atzeni, B. Audurier, S. Bachmann, M. Bachmayer, J. J. Back, A. Bailly-reyre, P. Baladron Rodriguez, V. Balagura, W. Baldini, J. Baptista de Souza Leite^*, M. Barbetti, R. J. Barlow, S. Barsuk, W. Barter, M. Bartolini, LHCb collaboration, Carolina da silva Bolognani, Daniel Hugo Cámpora Pérez, Jacco de Vries, Miriam Lucio Martinez, Marcel Merk, Davide Nicotra, Chris Pawley, Keri Vos

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

The very rare D∗(2007)0→μ+μ- decay is searched for by analysing B-→π-μ+μ- decays. The analysis uses a sample of beauty mesons produced in proton–proton collisions collected with the LHCb detector between 2011 and 2018, corresponding to an integrated luminosity of 9 \,fb ^{- 1} . The signal signature corresponds to simultaneous peaks in the μ ⁺μ ^- and π ^-μ ⁺μ ^- invariant masses. No evidence for an excess of events over background is observed and an upper limit is set on the branching fraction of the decay at B(D∗(2007)0→μ+μ-)<2.6×10-8 at 90 % confidence level. This is the first limit on the branching fraction of D∗(2007)0→μ+μ- decays and the most stringent limit on D ^∗(2007) decays to leptonic final states. The analysis is the first search for a rare charm-meson decay exploiting production via beauty decays.

Original language	English
Article number	666
Number of pages	14
Journal	European Physical Journal C
Volume	83
Issue number	7
DOIs	https://doi.org/10.1140/epjc/s10052-023-11759-6
Publication status	Published - 26 Jul 2023

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Aaij, R., Abdelmotteleb, A. S. W., Beteta, C. A., Abudinen, F., Ackernley, T., Adeva, B., Adinolfi, M., Adlarson, P., Afsharnia, H., Agapopoulou, C., Aidala, C. A., Ajaltouni, Z., Akar, S., Akiba, K., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Aliouche, Z., ... Vos, K. (2023). Search for D∗(2007)0 → μ+μ− in B− → π−μ+μ− decays. European Physical Journal C, 83(7), Article 666. https://doi.org/10.1140/epjc/s10052-023-11759-6

@article{eac3e6370c82414f81a35094a1e66768,

title = "Search for D∗(2007)0 → μ+μ− in B− → π−μ+μ− decays",

abstract = "The very rare D∗(2007)0→μ+μ- decay is searched for by analysing B-→π-μ+μ- decays. The analysis uses a sample of beauty mesons produced in proton–proton collisions collected with the LHCb detector between 2011 and 2018, corresponding to an integrated luminosity of 9 \textbackslash{},fb - 1 . The signal signature corresponds to simultaneous peaks in the μ +μ - and π -μ +μ - invariant masses. No evidence for an excess of events over background is observed and an upper limit is set on the branching fraction of the decay at B(D∗(2007)0→μ+μ-)<2.6×10-8 at 90 \% confidence level. This is the first limit on the branching fraction of D∗(2007)0→μ+μ- decays and the most stringent limit on D ∗(2007) decays to leptonic final states. The analysis is the first search for a rare charm-meson decay exploiting production via beauty decays.",

author = "R. Aaij and Abdelmotteleb, \{A. S. W.\} and Beteta, \{C. Abellan\} and F. Abudinen and T. Ackernley and B. Adeva and M. Adinolfi and P. Adlarson and H. Afsharnia and C. Agapopoulou and Aidala, \{C. A.\} and Z. Ajaltouni and S. Akar and K. Akiba and J. Albrecht and F. Alessio and M. Alexander and \{Alfonso Albero\}, A. 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 M. Andreotti and D. Andreou and D. Ao and F. Archilli and A. Artamonov and M. Artuso and E. Aslanides and M. Atzeni and B. Audurier and S. Bachmann and M. Bachmayer and Back, \{J. J.\} and A. Bailly-reyre and \{Baladron Rodriguez\}, P. and V. Balagura and W. Baldini and \{Baptista de Souza Leite\}, J. and M. Barbetti and Barlow, \{R. J.\} and S. Barsuk and W. Barter and M. Bartolini and \{LHCb collaboration\} and \{da silva Bolognani\}, Carolina and \{C{\'a}mpora P{\'e}rez\}, \{Daniel Hugo\} and \{de Vries\}, Jacco and \{Lucio Martinez\}, Miriam and Marcel Merk and Davide Nicotra and Chris Pawley and Keri Vos",

year = "2023",

month = jul,

day = "26",

doi = "10.1140/epjc/s10052-023-11759-6",

language = "English",

volume = "83",

journal = "European Physical Journal C",

issn = "1434-6044",

publisher = "Springer",

number = "7",

}

Aaij, R, Abdelmotteleb, ASW, Beteta, CA, Abudinen, F, Ackernley, T, Adeva, B, Adinolfi, M, Adlarson, P, Afsharnia, H, Agapopoulou, C, Aidala, CA, Ajaltouni, Z, Akar, S, Akiba, K, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Aliouche, Z, Cartelle, PA, Amalric, R, Amato, S, Amey, JL, Amhis, Y, An, L, Anderlini, L, Andersson, M, Andreianov, A, Andreotti, M, Andreou, D, Ao, D, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Atzeni, M, Audurier, B, Bachmann, S, Bachmayer, M, Back, JJ, Bailly-reyre, A, Baladron Rodriguez, P, Balagura, V, Baldini, W, Baptista de Souza Leite, J, Barbetti, M, Barlow, RJ, Barsuk, S, Barter, W, Bartolini, M, LHCb collaboration, da silva Bolognani, C, Cámpora Pérez, DH, de Vries, J, Lucio Martinez, M, Merk, M , Nicotra, D , Pawley, C & Vos, K 2023, 'Search for D∗(2007)0 → μ+μ− in B− → π−μ+μ− decays', European Physical Journal C, vol. 83, no. 7, 666. https://doi.org/10.1140/epjc/s10052-023-11759-6

TY - JOUR

T1 - Search for D∗(2007)0 → μ+μ− in B− → π−μ+μ− decays

AU - Aaij, R.

AU - Abdelmotteleb, A. S. W.

AU - Beteta, C. Abellan

AU - Abudinen, F.

AU - Ackernley, T.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Adlarson, P.

AU - Afsharnia, H.

AU - Agapopoulou, C.

AU - Aidala, C. A.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Akiba, K.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Alfonso Albero, A.

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 - Andreotti, M.

AU - Andreou, D.

AU - Ao, D.

AU - Archilli, F.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Atzeni, M.

AU - Audurier, B.

AU - Bachmann, S.

AU - Bachmayer, M.

AU - Back, J. J.

AU - Bailly-reyre, A.

AU - Baladron Rodriguez, P.

AU - Balagura, V.

AU - Baldini, W.

AU - Baptista de Souza Leite, J.

AU - Barbetti, M.

AU - Barlow, R. J.

AU - Barsuk, S.

AU - Barter, W.

AU - Bartolini, M.

AU - LHCb collaboration

AU - da silva Bolognani, Carolina

AU - Cámpora Pérez, Daniel Hugo

AU - de Vries, Jacco

AU - Lucio Martinez, Miriam

AU - Merk, Marcel

AU - Nicotra, Davide

AU - Pawley, Chris

AU - Vos, Keri

PY - 2023/7/26

Y1 - 2023/7/26

N2 - The very rare D∗(2007)0→μ+μ- decay is searched for by analysing B-→π-μ+μ- decays. The analysis uses a sample of beauty mesons produced in proton–proton collisions collected with the LHCb detector between 2011 and 2018, corresponding to an integrated luminosity of 9 \,fb - 1 . The signal signature corresponds to simultaneous peaks in the μ +μ - and π -μ +μ - invariant masses. No evidence for an excess of events over background is observed and an upper limit is set on the branching fraction of the decay at B(D∗(2007)0→μ+μ-)<2.6×10-8 at 90 % confidence level. This is the first limit on the branching fraction of D∗(2007)0→μ+μ- decays and the most stringent limit on D ∗(2007) decays to leptonic final states. The analysis is the first search for a rare charm-meson decay exploiting production via beauty decays.

AB - The very rare D∗(2007)0→μ+μ- decay is searched for by analysing B-→π-μ+μ- decays. The analysis uses a sample of beauty mesons produced in proton–proton collisions collected with the LHCb detector between 2011 and 2018, corresponding to an integrated luminosity of 9 \,fb - 1 . The signal signature corresponds to simultaneous peaks in the μ +μ - and π -μ +μ - invariant masses. No evidence for an excess of events over background is observed and an upper limit is set on the branching fraction of the decay at B(D∗(2007)0→μ+μ-)<2.6×10-8 at 90 % confidence level. This is the first limit on the branching fraction of D∗(2007)0→μ+μ- decays and the most stringent limit on D ∗(2007) decays to leptonic final states. The analysis is the first search for a rare charm-meson decay exploiting production via beauty decays.

U2 - 10.1140/epjc/s10052-023-11759-6

DO - 10.1140/epjc/s10052-023-11759-6

M3 - Article

SN - 1434-6044

VL - 83

JO - European Physical Journal C

JF - European Physical Journal C

IS - 7

M1 - 666

ER -

Search for D∗(2007)0 → μ+μ− in B− → π−μ+μ− decays

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