Search for Rare Decays of D0 Mesons into Two Muons

LHCb collaboration

doi:10.1103/PhysRevLett.131.041804

Search for Rare Decays of D0 Mesons into Two Muons

LHCb collaboration

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

Abstract

A search for the very rare D0→μ+μ− decay is performed using data collected by the LHCb experiment in proton-proton collisions at √s=7, 8, and 13 TeV, corresponding to an integrated luminosity of 9 fb−1. The search is optimized for D0 mesons from D*+→D0π+ decays but is also sensitive to D0 mesons from other sources. No evidence for an excess of events over the expected background is observed. An upper limit on the branching fraction of this decay is set at B(D0→μ+μ−)<3.1×10−9 at a 90% C.L. This represents the world’s most stringent limit, constraining models of physics beyond the standard model.

Original language	English
Article number	041804
Pages (from-to)	041804
Journal	Physical review letters
Volume	131
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevLett.131.041804
Publication status	Published - 28 Jul 2023

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10.1103/PhysRevLett.131.041804Licence: CC BY

Cite this

@article{83a02a9459c74fff900686fb601ad85d,

title = "Search for Rare Decays of D0 Mesons into Two Muons",

abstract = "A search for the very rare D0→μ+μ− decay is performed using data collected by the LHCb experiment in proton-proton collisions at √s=7, 8, and 13 TeV, corresponding to an integrated luminosity of 9 fb−1. The search is optimized for D0 mesons from D*+→D0π+ decays but is also sensitive to D0 mesons from other sources. No evidence for an excess of events over the expected background is observed. An upper limit on the branching fraction of this decay is set at B(D0→μ+μ−)<3.1×10−9 at a 90% C.L. This represents the world{\textquoteright}s most stringent limit, constraining models of physics beyond the standard model.",

author = "R Aaij and Abdelmotteleb, {A S W} and {Abellan Beteta}, C and F Abudin{\'e}n and T Ackernley and B Adeva and M Adinolfi and P Adlarson and H Afsharnia and C Agapopoulou and Aidala, {C A} and S Aiola 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 {Alvarez Cartelle}, P 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 {LHCb collaboration} and Marcel Merk and Chris Pawley and {de Vries}, Jacco and Keri Vos and {C{\'a}mpora P{\'e}rez}, {Daniel Hugo} and {da silva Bolognani}, Carolina and {Lucio Martinez}, Miriam",

year = "2023",

month = jul,

day = "28",

doi = "10.1103/PhysRevLett.131.041804",

language = "English",

volume = "131",

pages = "041804",

journal = "Physical review letters",

issn = "1079-7114",

publisher = "American Physical Society",

number = "4",

}

TY - JOUR

T1 - Search for Rare Decays of D0 Mesons into Two Muons

AU - Aaij, R

AU - Abdelmotteleb, A S W

AU - Abellan Beteta, C

AU - Abudinén, F

AU - Ackernley, T

AU - Adeva, B

AU - Adinolfi, M

AU - Adlarson, P

AU - Afsharnia, H

AU - Agapopoulou, C

AU - Aidala, C A

AU - Aiola, S

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 - Alvarez Cartelle, P

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 - LHCb collaboration

AU - Merk, Marcel

AU - Pawley, Chris

AU - de Vries, Jacco

AU - Vos, Keri

AU - Cámpora Pérez, Daniel Hugo

AU - da silva Bolognani, Carolina

AU - Lucio Martinez, Miriam

PY - 2023/7/28

Y1 - 2023/7/28

N2 - A search for the very rare D0→μ+μ− decay is performed using data collected by the LHCb experiment in proton-proton collisions at √s=7, 8, and 13 TeV, corresponding to an integrated luminosity of 9 fb−1. The search is optimized for D0 mesons from D*+→D0π+ decays but is also sensitive to D0 mesons from other sources. No evidence for an excess of events over the expected background is observed. An upper limit on the branching fraction of this decay is set at B(D0→μ+μ−)<3.1×10−9 at a 90% C.L. This represents the world’s most stringent limit, constraining models of physics beyond the standard model.

AB - A search for the very rare D0→μ+μ− decay is performed using data collected by the LHCb experiment in proton-proton collisions at √s=7, 8, and 13 TeV, corresponding to an integrated luminosity of 9 fb−1. The search is optimized for D0 mesons from D*+→D0π+ decays but is also sensitive to D0 mesons from other sources. No evidence for an excess of events over the expected background is observed. An upper limit on the branching fraction of this decay is set at B(D0→μ+μ−)<3.1×10−9 at a 90% C.L. This represents the world’s most stringent limit, constraining models of physics beyond the standard model.

U2 - 10.1103/PhysRevLett.131.041804

DO - 10.1103/PhysRevLett.131.041804

M3 - Article

SN - 1079-7114

VL - 131

SP - 041804

JO - Physical review letters

JF - Physical review letters

IS - 4

M1 - 041804

ER -