Search for the lepton-flavour violating decay D0→e±μ∓

R. Aaij; C. Abellán Beteta; B. Adeva; M. Adinolfi; A. Affolder; Z. Ajaltouni; S. Akar; J. Albrecht; F. Alessio; M. Alexander; S. Ali; G. Alkhazov; P. Alvarez Cartelle; A. A. Alves; S. Amato; S. Amerio; Y. Amhis; LA Everse; L. Anderlini; J. Anderson; G. Andreassi; M. Andreotti; J.E. Andrews; R. B. Appleby; O. Aquines Gutierrez; F. Archilli; P. d'Argent; A. Artamonov; M. Artuso; K. Carvalho Akiba; V. Coco; P. N.Y. David; K. De Bruyn; M. Ferro-Luzzi; V. Heijne; T. Ketel; R. F. Koopman; J. van Leerdam; M. Merk; C. J.G. Onderwater; G. Raven; M. Schiller; N. Serra; H. Snoek; B. Storaci; V. Syropoulos; J. van Tilburg; S. Tolk; P. Tsopelas; N. Tuning; LHCb Collaboration

doi:10.1016/j.physletb.2016.01.029

Search for the lepton-flavour violating decay D⁰→e^±μ^∓

R. Aaij, C. Abellán Beteta, B. Adeva, M. Adinolfi, A. Affolder, Z. Ajaltouni, S. Akar, J. Albrecht, F. Alessio, M. Alexander, S. Ali, G. Alkhazov, P. Alvarez Cartelle, A. A. Alves, S. Amato, S. Amerio, Y. Amhis, LA Everse, L. Anderlini, J. AndersonG. Andreassi, M. Andreotti, J.E. Andrews, R. B. Appleby, O. Aquines Gutierrez, F. Archilli, P. d'Argent, A. Artamonov, M. Artuso, K. Carvalho Akiba, V. Coco, P. N.Y. David, K. De Bruyn, M. Ferro-Luzzi, V. Heijne, T. Ketel, R. F. Koopman, J. van Leerdam, M. Merk, C. J.G. Onderwater, G. Raven, M. Schiller, N. Serra, H. Snoek, B. Storaci, V. Syropoulos, J. van Tilburg, S. Tolk, P. Tsopelas, N. Tuning, LHCb Collaboration

(Astro)-Particles Physics

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

Abstract

A search for the lepton-flavour violating decay D⁰→e^±μ^∓is made with a dataset corresponding to an integrated luminosity of 3.0 fb^-1of proton-proton collisions at centre-of-mass energies of 7TeV and 8TeV, collected by the LHCb experiment. Candidate D⁰mesons are selected using the decay D^*+→D⁰π⁺and the D⁰→e^±μ^∓branching fraction is measured using the decay mode D⁰→K^-π⁺as a normalization channel. No significant excess of D⁰→e^±μ^∓candidates over the expected background is seen, and a limit is set on the branching fraction, B(D0→e±μ∓)<1.3×10-8, at 90% confidence level. This is an order of magnitude lower than the previous limit and it further constrains the parameter space in some leptoquark models and in supersymmetric models with R-parity violation.

Original language	English
Pages (from-to)	167-175
Number of pages	9
Journal	Physics Letters B
Volume	754
DOIs	https://doi.org/10.1016/j.physletb.2016.01.029
Publication status	Published - 10 Mar 2016

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Aaij, R., Abellán Beteta, C., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., Akar, S., Albrecht, J., Alessio, F., Alexander, M., Ali, S., Alkhazov, G., Alvarez Cartelle, P., Alves, A. A., Amato, S., Amerio, S., Amhis, Y., Everse, LA., Anderlini, L., ... LHCb Collaboration (2016). Search for the lepton-flavour violating decay D⁰→e^±μ^∓. Physics Letters B, 754, 167-175. https://doi.org/10.1016/j.physletb.2016.01.029

@article{ad324b45ac084e10a16362de378e49f1,

title = "Search for the lepton-flavour violating decay D0→e±μ∓",

abstract = "A search for the lepton-flavour violating decay D0→e±μ∓is made with a dataset corresponding to an integrated luminosity of 3.0 fb-1of proton-proton collisions at centre-of-mass energies of 7TeV and 8TeV, collected by the LHCb experiment. Candidate D0mesons are selected using the decay D*+→D0π+and the D0→e±μ∓branching fraction is measured using the decay mode D0→K-π+as a normalization channel. No significant excess of D0→e±μ∓candidates over the expected background is seen, and a limit is set on the branching fraction, B(D0→e±μ∓)<1.3×10-8, at 90% confidence level. This is an order of magnitude lower than the previous limit and it further constrains the parameter space in some leptoquark models and in supersymmetric models with R-parity violation.",

author = "R. Aaij and {Abell{\'a}n Beteta}, C. and B. Adeva and M. Adinolfi and A. Affolder and Z. Ajaltouni and S. Akar and J. Albrecht and F. Alessio and M. Alexander and S. Ali and G. Alkhazov and {Alvarez Cartelle}, P. and Alves, {A. A.} and S. Amato and S. Amerio and Y. Amhis and LA Everse and L. Anderlini and J. Anderson and G. Andreassi and M. Andreotti and J.E. Andrews and Appleby, {R. B.} and {Aquines Gutierrez}, O. and F. Archilli and P. d'Argent and A. Artamonov and M. Artuso and {Carvalho Akiba}, K. and V. Coco and David, {P. N.Y.} and {De Bruyn}, K. and M. Ferro-Luzzi and V. Heijne and T. Ketel and Koopman, {R. F.} and {van Leerdam}, J. and M. Merk and Onderwater, {C. J.G.} and G. Raven and M. Schiller and N. Serra and H. Snoek and B. Storaci and V. Syropoulos and {van Tilburg}, J. and S. Tolk and P. Tsopelas and N. Tuning and {LHCb Collaboration}",

year = "2016",

month = mar,

day = "10",

doi = "10.1016/j.physletb.2016.01.029",

language = "English",

volume = "754",

pages = "167--175",

journal = "Physics Letters B",

issn = "0370-2693",

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Aaij, R, Abellán Beteta, C, Adeva, B, Adinolfi, M, Affolder, A, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, AA, Amato, S, Amerio, S, Amhis, Y, Everse, LA, Anderlini, L, Anderson, J, Andreassi, G, Andreotti, M, Andrews, JE, Appleby, RB, Aquines Gutierrez, O, Archilli, F, d'Argent, P, Artamonov, A, Artuso, M, Carvalho Akiba, K, Coco, V, David, PNY, De Bruyn, K, Ferro-Luzzi, M, Heijne, V, Ketel, T, Koopman, RF, van Leerdam, J, Merk, M, Onderwater, CJG, Raven, G, Schiller, M, Serra, N, Snoek, H, Storaci, B, Syropoulos, V, van Tilburg, J, Tolk, S, Tsopelas, P, Tuning, N & LHCb Collaboration 2016, 'Search for the lepton-flavour violating decay D⁰→e^±μ^∓', Physics Letters B, vol. 754, pp. 167-175. https://doi.org/10.1016/j.physletb.2016.01.029

TY - JOUR

T1 - Search for the lepton-flavour violating decay D0→e±μ∓

AU - Aaij, R.

AU - Abellán Beteta, C.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Affolder, A.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Ali, S.

AU - Alkhazov, G.

AU - Alvarez Cartelle, P.

AU - Alves, A. A.

AU - Amato, S.

AU - Amerio, S.

AU - Amhis, Y.

AU - Everse, LA

AU - Anderlini, L.

AU - Anderson, J.

AU - Andreassi, G.

AU - Andreotti, M.

AU - Andrews, J.E.

AU - Appleby, R. B.

AU - Aquines Gutierrez, O.

AU - Archilli, F.

AU - d'Argent, P.

AU - Artamonov, A.

AU - Artuso, M.

AU - Carvalho Akiba, K.

AU - Coco, V.

AU - David, P. N.Y.

AU - De Bruyn, K.

AU - Ferro-Luzzi, M.

AU - Heijne, V.

AU - Ketel, T.

AU - Koopman, R. F.

AU - van Leerdam, J.

AU - Merk, M.

AU - Onderwater, C. J.G.

AU - Raven, G.

AU - Schiller, M.

AU - Serra, N.

AU - Snoek, H.

AU - Storaci, B.

AU - Syropoulos, V.

AU - van Tilburg, J.

AU - Tolk, S.

AU - Tsopelas, P.

AU - Tuning, N.

AU - LHCb Collaboration

PY - 2016/3/10

Y1 - 2016/3/10

N2 - A search for the lepton-flavour violating decay D0→e±μ∓is made with a dataset corresponding to an integrated luminosity of 3.0 fb-1of proton-proton collisions at centre-of-mass energies of 7TeV and 8TeV, collected by the LHCb experiment. Candidate D0mesons are selected using the decay D*+→D0π+and the D0→e±μ∓branching fraction is measured using the decay mode D0→K-π+as a normalization channel. No significant excess of D0→e±μ∓candidates over the expected background is seen, and a limit is set on the branching fraction, B(D0→e±μ∓)<1.3×10-8, at 90% confidence level. This is an order of magnitude lower than the previous limit and it further constrains the parameter space in some leptoquark models and in supersymmetric models with R-parity violation.

AB - A search for the lepton-flavour violating decay D0→e±μ∓is made with a dataset corresponding to an integrated luminosity of 3.0 fb-1of proton-proton collisions at centre-of-mass energies of 7TeV and 8TeV, collected by the LHCb experiment. Candidate D0mesons are selected using the decay D*+→D0π+and the D0→e±μ∓branching fraction is measured using the decay mode D0→K-π+as a normalization channel. No significant excess of D0→e±μ∓candidates over the expected background is seen, and a limit is set on the branching fraction, B(D0→e±μ∓)<1.3×10-8, at 90% confidence level. This is an order of magnitude lower than the previous limit and it further constrains the parameter space in some leptoquark models and in supersymmetric models with R-parity violation.

UR - http://www.scopus.com/inward/record.url?scp=84983484056&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84983484056&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2016.01.029

DO - 10.1016/j.physletb.2016.01.029

M3 - Article

SN - 0370-2693

VL - 754

SP - 167

EP - 175

JO - Physics Letters B

JF - Physics Letters B

ER -