Search for the decay D-0 -> pi(+)pi(-)mu(+)mu(-)

LHCb collaboration; A. Contu

doi:10.1016/j.physletb.2013.11.053

Search for the decay D-0 -> pi(+)pi(-)mu(+)mu(-)

LHCb collaboration, A. Contu^*

^*Corresponding author for this work

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

Abstract

A search for the D-0 -> pi(+)pi(-)mu(+)mu(-) decay, where the muon pair does not originate from a resonance, is performed using proton-proton collision data corresponding to an integrated luminosity of 1.0 fb(-1) recorded by the LHCb experiment at a centre-of-mass energy of 7 TeV. No signal is observed and an upper limit on the relative branching fraction with respect to the resonant decay mode D-0 -> pi(+)pi(-)phi(-> mu(+)mu(-)), under the assumption of a phase-space model, is found to beB(D-0 -> pi(+)pi(-)mu(+)mu(-))/B(D-0 -> pi(+)pi(-)phi(-> mu(+)mu(-))) < 0.96at 90% confidence level. The upper limit on the absolute branching fraction is evaluated to be B(D-0 -> pi(+)pi(-)mu(+)mu(-)) < 5.5 x 10(-7) at 90% confidence level. This is the most stringent to date. (C) 2013 The Authors. Published by Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	234-243
Number of pages	10
Journal	Physics Letters B
Volume	728
DOIs	https://doi.org/10.1016/j.physletb.2013.11.053
Publication status	Published - 20 Jan 2014
Externally published	Yes

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@article{f98ede61284a46b0bd93a24345655b3e,

title = "Search for the decay D-0 -> pi(+)pi(-)mu(+)mu(-)",

abstract = "A search for the D-0 -> pi(+)pi(-)mu(+)mu(-) decay, where the muon pair does not originate from a resonance, is performed using proton-proton collision data corresponding to an integrated luminosity of 1.0 fb(-1) recorded by the LHCb experiment at a centre-of-mass energy of 7 TeV. No signal is observed and an upper limit on the relative branching fraction with respect to the resonant decay mode D-0 -> pi(+)pi(-)phi(-> mu(+)mu(-)), under the assumption of a phase-space model, is found to beB(D-0 -> pi(+)pi(-)mu(+)mu(-))/B(D-0 -> pi(+)pi(-)phi(-> mu(+)mu(-))) < 0.96at 90% confidence level. The upper limit on the absolute branching fraction is evaluated to be B(D-0 -> pi(+)pi(-)mu(+)mu(-)) < 5.5 x 10(-7) at 90% confidence level. This is the most stringent to date. (C) 2013 The Authors. Published by Elsevier B.V. All rights reserved.",

author = "R. Aaij and B. Adeva and M. Adinolfi and C. Adrover and A. Affolder and Z. Ajaltouni and J. Albrecht and F. Alessio and M. Alexander and S. Ali and G. Alkhazov and P.A. Cartelle and A.A. Alves and S. Amato and S. Amerio and Y. Amhis and L. Anderlini and J. Anderson and R. Andreassen and J.E. Andrews and R.B. Appleby and O.A. Gutierrez and E. Archilli and A. Artamonov and M. Artuso and E. Aslanides and G. Auriemma and M. Baalouch and S. Bachmann and J.J. Back and A. Badalov and C. Baesso and V. Balagura and W. Baldini and R.J. Barlow and C. Barsche and S. Barsuk and W. Barter and T. Bauer and A. Bay and J. Beddow and F. Bedeschi and I. Bediaga and S. Belogurov and K. Belous and I. Belyaev and E. Ben-Haim and G. Bencivenni and S. Benson and {van den Brand}, J. and {LHCb collaboration} and A. Contu",

year = "2014",

month = jan,

day = "20",

doi = "10.1016/j.physletb.2013.11.053",

language = "English",

volume = "728",

pages = "234--243",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Search for the decay D-0 -> pi(+)pi(-)mu(+)mu(-)

AU - Aaij, R.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Adrover, C.

AU - Affolder, A.

AU - Ajaltouni, Z.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Ali, S.

AU - Alkhazov, G.

AU - Cartelle, P.A.

AU - Alves, A.A.

AU - Amato, S.

AU - Amerio, S.

AU - Amhis, Y.

AU - Anderlini, L.

AU - Anderson, J.

AU - Andreassen, R.

AU - Andrews, J.E.

AU - Appleby, R.B.

AU - Gutierrez, O.A.

AU - Archilli, E.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Auriemma, G.

AU - Baalouch, M.

AU - Bachmann, S.

AU - Back, J.J.

AU - Badalov, A.

AU - Baesso, C.

AU - Balagura, V.

AU - Baldini, W.

AU - Barlow, R.J.

AU - Barsche, C.

AU - Barsuk, S.

AU - Barter, W.

AU - Bauer, T.

AU - Bay, A.

AU - Beddow, J.

AU - Bedeschi, F.

AU - Bediaga, I.

AU - Belogurov, S.

AU - Belous, K.

AU - Belyaev, I.

AU - Ben-Haim, E.

AU - Bencivenni, G.

AU - Benson, S.

AU - van den Brand, J.

AU - LHCb collaboration

AU - Contu, A.

PY - 2014/1/20

Y1 - 2014/1/20

N2 - A search for the D-0 -> pi(+)pi(-)mu(+)mu(-) decay, where the muon pair does not originate from a resonance, is performed using proton-proton collision data corresponding to an integrated luminosity of 1.0 fb(-1) recorded by the LHCb experiment at a centre-of-mass energy of 7 TeV. No signal is observed and an upper limit on the relative branching fraction with respect to the resonant decay mode D-0 -> pi(+)pi(-)phi(-> mu(+)mu(-)), under the assumption of a phase-space model, is found to beB(D-0 -> pi(+)pi(-)mu(+)mu(-))/B(D-0 -> pi(+)pi(-)phi(-> mu(+)mu(-))) < 0.96at 90% confidence level. The upper limit on the absolute branching fraction is evaluated to be B(D-0 -> pi(+)pi(-)mu(+)mu(-)) < 5.5 x 10(-7) at 90% confidence level. This is the most stringent to date. (C) 2013 The Authors. Published by Elsevier B.V. All rights reserved.

AB - A search for the D-0 -> pi(+)pi(-)mu(+)mu(-) decay, where the muon pair does not originate from a resonance, is performed using proton-proton collision data corresponding to an integrated luminosity of 1.0 fb(-1) recorded by the LHCb experiment at a centre-of-mass energy of 7 TeV. No signal is observed and an upper limit on the relative branching fraction with respect to the resonant decay mode D-0 -> pi(+)pi(-)phi(-> mu(+)mu(-)), under the assumption of a phase-space model, is found to beB(D-0 -> pi(+)pi(-)mu(+)mu(-))/B(D-0 -> pi(+)pi(-)phi(-> mu(+)mu(-))) < 0.96at 90% confidence level. The upper limit on the absolute branching fraction is evaluated to be B(D-0 -> pi(+)pi(-)mu(+)mu(-)) < 5.5 x 10(-7) at 90% confidence level. This is the most stringent to date. (C) 2013 The Authors. Published by Elsevier B.V. All rights reserved.

U2 - 10.1016/j.physletb.2013.11.053

DO - 10.1016/j.physletb.2013.11.053

M3 - Article

SN - 0370-2693

VL - 728

SP - 234

EP - 243

JO - Physics Letters B

JF - Physics Letters B

ER -

Search for the decay D-0 -> pi(+)pi(-)mu(+)mu(-)

Abstract

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