Searches for violation of lepton flavour and baryon number in tau lepton decays at LHCb

被引：43

作者：

Aaij, R. ^{[41
]}

Abellan Beteta, C. ^{[36
]}

Adeva, B. ^{[37
]}

Adinolfi, M. ^{[46
]}

Adrover, C. ^{[6
]}

Affolder, A. ^{[52
]}

Ajaltouni, Z. ^{[5
]}

Albrecht, J. ^{[9
]}

Alessio, F. ^{[38
]}

Alexander, M. ^{[51
]}

Ali, S. ^{[41
]}

Alkhazov, G. ^{[29
]}

Alvarez Cartelle, P. ^{[37
]}

Alves, A. A., Jr. ^{[24
,38
]}

Amato, S. ^{[2
]}

Amerio, S. ^{[21
]}

Amhis, Y. ^{[7
]}

Anderlini, L. ^{[17
]}

Anderson, J. ^{[40
]}

Andreassen, R. ^{[57
]}

Appleby, R. B. ^{[54
]}

Gutierrez, O. Aquines ^{[10
]}

Archilli, F. ^{[18
]}

Artamonov, A. ^{[35
]}

Artuso, M. ^{[58
]}

Aslanides, E. ^{[6
]}

Auriemma, G. ^{[24
]}

Bachmann, S. ^{[11
]}

Back, J. J. ^{[48
]}

Baesso, C. ^{[59
]}

Balagura, V. ^{[30
]}

Baldini, W. ^{[16
]}

Barlow, R. J. ^{[54
]}

Barschel, C. ^{[38
]}

Barsuk, S. ^{[7
]}

Barter, W. ^{[47
]}

Bauer, Th. ^{[41
]}

Bay, A. ^{[39
]}

Beddow, J. ^{[51
]}

Bedeschi, F. ^{[22
]}

Bediaga, I. ^{[1
]}

Belogurov, S. ^{[30
]}

Belous, K. ^{[35
]}

Belyaev, I. ^{[30
]}

Ben-Haim, E. ^{[8
]}

Bencivenni, G. ^{[18
]}

Benson, S. ^{[50
]}

Benton, J. ^{[46
]}

Berezhnoy, A. ^{[31
]}

Bernet, R. ^{[40
]}

机构：

[1] Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil

[2] Univ Fed Rio de Janeiro, Rio De Janeiro, Brazil

[3] Tsinghua Univ, Ctr High Energy Phys, Beijing 100084, Peoples R China

[4] Univ Savoie, CNRS, IN2P3, LAPP, Annecy Le Vieux, France

[5] Clermont Univ, Univ Blaise Pascal, CNRS, IN2P3,LPC, Clermont Ferrand, France

[6] Aix Marseille Univ, CPPM, CNRS, IN2P3, Marseille, France

[7] Univ Paris 11, CNRS, LAL, IN2P3, F-91405 Orsay, France

[8] Univ Paris Diderot, Univ Paris 06, LPNHE, CNRS,IN2P3, Paris, France

[9] Tech Univ Dortmund, Fak Phys, Dortmund, Germany

[10] Max Planck Inst Kernphys, D-69117 Heidelberg, Germany

[11] Heidelberg Univ, Inst Phys, Heidelberg, Germany

[12] Univ Coll Dublin, Sch Phys, Dublin 2, Ireland

[13] Sez INFN Bari, Bari, Italy

[14] Sez INFN Bologna, Bologna, Italy

[15] Sez INFN Cagliari, Cagliari, Italy

[16] Sez INFN Ferrara, Ferrara, Italy

[17] Sez INFN Firenze, Florence, Italy

[18] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy

[19] Sez INFN Genova, Genoa, Italy

[20] Sez INFN Milano Bicocca, Milan, Italy

[21] Sez INFN Padova, Padua, Italy

[22] Sez INFN Pisa, Pisa, Italy

[23] Sez INFN Roma Tor Vergata, Rome, Italy

[24] Sez INFN Roma La Sapienza, Rome, Italy

[25] Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, Krakow, Poland

[26] AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, Krakow, Poland

[27] Natl Ctr Nucl Res NCBJ, Warsaw, Poland

[28] Horia Hulubei Natl Inst Phys & Nucl Engn, Bucharest, Romania

[29] Petersburg Nucl Phys Inst, Gatchina, Russia

[30] Inst Theoret & Expt Phys, Moscow 117259, Russia

[31] Moscow State Univ SINP MSU, Inst Nucl Phys, Moscow, Russia

[32] Russian Acad Sci INR RAN, Inst Nucl Res, Moscow, Russia

[33] Budker Inst Nucl Phys SB RAS, Novosibirsk, Russia

[34] Novosibirsk State Univ, Novosibirsk 630090, Russia

[35] Inst High Energy Phys, Protvino, Russia

[36] Univ Barcelona, Barcelona, Spain

[37] Univ Santiago de Compostela, Santiago De Compostela, Spain

[38] CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland

[39] Ecole Polytech Fed Lausanne, Lausanne, Switzerland

[40] Univ Zurich, Inst Phys, Zurich, Switzerland

[41] NIKHEF H, Natl Inst Subat Phys, NL-1009 DB Amsterdam, Netherlands

[42] Vrije Univ Amsterdam, Amsterdam, Netherlands

[43] NSC Kharkiv Inst Phys & Technol NSC KIPT, Kharkiv, Ukraine

[44] Natl Acad Sci KINR, Inst Nucl Res, Kiev, Ukraine

[45] Univ Birmingham, Birmingham, W Midlands, England

[46] Univ Bristol, HH Wills Phys Lab, Bristol BS8 1TL, Avon, England

[47] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

[48] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England

[49] STFC Rutherford Appleton Lab, Didcot, Oxon, England

[50] Univ Edinburgh, Sch Phys & Astron, Edinburgh, Midlothian, Scotland

来源：

PHYSICS LETTERS B | 2013年 / 724卷 / 1-3期

关键词：

D O I：

10.1016/j.physletb.2013.05.063

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Searches for the lepton flavour violating decay tau(-) -> mu(-)mu(+)mu(-) and the lepton flavour and baryon number violating decays tau(-) -> (p) over bar mu(+)mu(-) and tau(-) -> p mu(-)mu(-) have been carried out using proton-proton collision data, corresponding to an integrated luminosity of 1.0 fb(-1), taken by the LHCb experiment at root s = 7 TeV. No evidence has been found for any signal, and limits have been set at 90% confidence level on the branching fractions: B(tau(-) -> mu(-)mu(+)mu(-) < 8.0 x 10(-8), B(tau(-) -> <(p)over bar>mu(+)mu(-)) < 3.3 x 10(-7) and B(tau(-) -> p mu(-)mu(-)) < 4.4 x 10(-7). The results for the tau(-) -> (p) over bar mu(+)mu(-) and tau(-) -> p mu(-)mu(-) decay modes represent the first direct experimental limits on these channels. (C) 2013 CERN. Published by Elsevier B.V. All rights reserved.

引用

页码：36 / 45

页数：10

共 27 条

[1] The LHCb trigger and its performance in 2011 [J].

Aaij, R. ;

Albrecht, J. ;

Alessio, F. ;

Amato, S. ;

Aslanides, E. ;

Belyaev, I. ;

van Beuzekom, M. ;

Bonaccorsi, E. ;

Bonnefoy, R. ;

Brarda, L. ;

Callot, O. ;

Cattaneo, M. ;

Chanal, H. ;

Chebbi, M. ;

Cid Vidal, X. ;

Clemencic, M. ;

Closier, J. ;

Coco, V. ;

Cogan, J. ;

Deschamps, O. ;

Dijkstra, H. ;

Drancourt, C. ;

Dzhelyadin, R. ;

Frank, M. ;

Gandelman, M. ;

Gaspar, C. ;

Gligorov, V. V. ;

Goebel, C. ;

Cardoso, L. A. Granado ;

Guz, Yu. ;

Haen, C. ;

He, J. ;

van Herwijnen, E. ;

Hulsbergen, W. ;

Jacobsson, R. ;

Jost, B. ;

Karbach, T. M. ;

Kerzel, U. ;

Koppenburg, P. ;

Krocker, G. ;

Langenbruch, C. ;

Lax, I. ;

Le Gac, R. ;

Lefevre, R. ;

Lefranccois, J. ;

Leroy, O. ;

Gioi, L. Li ;

Liu, G. ;

Machefert, F. ;

Machikhiliyan, I. V. .

JOURNAL OF INSTRUMENTATION, 2013, 8

[2] Prompt charm production in pp collisions at √s=7 TeV [J].

Aaij, R. ;

Abellan Beteta, C. ;

Adametz, A. ;

Adeva, B. ;

Adinolfi, M. ;

Adrover, C. ;

Affolder, A. ;

Ajaltouni, Z. ;

Albrecht, J. ;

Alessio, F. ;

Alexander, M. ;

Ali, S. ;

Alkhazov, G. ;

Alvarez Cartelle, P. ;

Alves, A. A., Jr. ;

Amato, S. ;

Amhis, Y. ;

Anderlini, L. ;

Anderson, J. ;

Andreassen, R. ;

Appleby, R. B. ;

Gutierrez, O. Aquines ;

Archilli, F. ;

Artamonov, A. ;

Artuso, M. ;

Aslanides, E. ;

Auriemma, G. ;

Bachmann, S. ;

Back, J. J. ;

Baesso, C. ;

Balagura, V. ;

Baldini, W. ;

Barlow, R. J. ;

Barschel, C. ;

Barsuk, S. ;

Barter, W. ;

Bauer, Th. ;

Bay, A. ;

Beddow, J. ;

Bediaga, I. ;

Belogurov, S. ;

Belous, K. ;

Belyaev, I. ;

Ben-Haim, E. ;

Benayoun, M. ;

Bencivenni, G. ;

Benson, S. ;

Benton, J. ;

Berezhnoy, A. ;

Bernet, R. .

NUCLEAR PHYSICS B, 2013, 871 (01) :1-20

[3] First Evidence for the Decay Bs0 → μ+ μ- [J].

Aaij, R. ;

Abellan Beteta, C. ;

Adametz, A. ;

Adeva, B. ;

Adinolfi, M. ;

Adrover, C. ;

Affolder, A. ;

Ajaltouni, Z. ;

Albrecht, J. ;

Alessio, F. ;

Alexander, M. ;

Ali, S. ;

Alkhazov, G. ;

Alvarez Cartelle, P. ;

Alves, A. A., Jr. ;

Amato, S. ;

Amhis, Y. ;

Anderlini, L. ;

Anderson, J. ;

Andreassen, R. ;

Appleby, R. B. ;

Gutierrez, O. Aquines ;

Archilli, F. ;

Artamonov, A. ;

Artuso, M. ;

Aslanides, E. ;

Auriemma, G. ;

Bachmann, S. ;

Back, J. J. ;

Baesso, C. ;

Baldini, W. ;

Barlow, R. J. ;

Barschel, C. ;

Barsuk, S. ;

Barter, W. ;

Bates, A. ;

Bauer, Th. ;

Bay, A. ;

Beddow, J. ;

Bediaga, I. ;

Belogurov, S. ;

Belous, K. ;

Belyaev, I. ;

Ben-Haim, E. ;

Benayoun, M. ;

Bencivenni, G. ;

Benson, S. ;

Benton, J. ;

Berezhnoy, A. ;

Bernet, R. .

PHYSICAL REVIEW LETTERS, 2013, 110 (02)

[4]

Aaij R, 2011, EUR PHYS J C, V71, DOI 10.1140/epjc/s10052-011-1645-y

[5] GEANT4-a simulation toolkit [J].

Agostinelli, S ;

Allison, J ;

Amako, K ;

Apostolakis, J ;

Araujo, H ;

Arce, P ;

Asai, M ;

Axen, D ;

Banerjee, S ;

Barrand, G ;

Behner, F ;

Bellagamba, L ;

Boudreau, J ;

Broglia, L ;

Brunengo, A ;

Burkhardt, H ;

Chauvie, S ;

Chuma, J ;

Chytracek, R ;

Cooperman, G ;

Cosmo, G ;

Degtyarenko, P ;

Dell'Acqua, A ;

Depaola, G ;

Dietrich, D ;

Enami, R ;

Feliciello, A ;

Ferguson, C ;

Fesefeldt, H ;

Folger, G ;

Foppiano, F ;

Forti, A ;

Garelli, S ;

Giani, S ;

Giannitrapani, R ;

Gibin, D ;

Cadenas, JJG ;

González, I ;

Abril, GG ;

Greeniaus, G ;

Greiner, W ;

Grichine, V ;

Grossheim, A ;

Guatelli, S ;

Gumplinger, P ;

Hamatsu, R ;

Hashimoto, K ;

Hasui, H ;

Heikkinen, A ;

Howard, A .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2003, 506 (03) :250-303

[6] Geant4 developments and applications [J].

Allison, J ;

Amako, K ;

Apostolakis, J ;

Araujo, H ;

Dubois, PA ;

Asai, M ;

Barrand, G ;

Capra, R ;

Chauvie, S ;

Chytracek, R ;

Cirrone, GAP ;

Cooperman, G ;

Cosmo, G ;

Cuttone, G ;

Daquino, GG ;

Donszelmann, M ;

Dressel, M ;

Folger, G ;

Foppiano, F ;

Generowicz, J ;

Grichine, V ;

Guatelli, S ;

Gumplinger, P ;

Heikkinen, A ;

Hrivnacova, I ;

Howard, A ;

Incerti, S ;

Ivanchenko, V ;

Johnson, T ;

Jones, F ;

Koi, T ;

Kokoulin, R ;

Kossov, M ;

Kurashige, H ;

Lara, V ;

Larsson, S ;

Lei, F ;

Link, O ;

Longo, F ;

Maire, M ;

Mantero, A ;

Mascialino, B ;

McLaren, I ;

Lorenzo, PM ;

Minamimoto, K ;

Murakami, K ;

Nieminen, P ;

Pandola, L ;

Parlati, S ;

Peralta, L .

IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 2006, 53 (01) :270-278

[7] The LHCb Detector at the LHC [J].

Alves, A. Augusto, Jr. ;

Andrade Filho, L. M. ;

Barbosa, A. F. ;

Bediaga, I. ;

Cernicchiaro, G. ;

Guerrer, G. ;

Lima, H. P., Jr. ;

Machado, A. A. ;

Magnin, J. ;

Marujo, F. ;

de Miranda, J. M. ;

Reis, A. ;

Santos, A. ;

Toledo, A. ;

Akiba, K. ;

Amato, S. ;

de Paula, B. ;

de Paula, L. ;

da Silva, T. ;

Gandelman, M. ;

Lopes, J. H. ;

Marechal, B. ;

Moraes, D. ;

Polycarpo, E. ;

Rodrigues, F. ;

Ballansat, J. ;

Bastian, Y. ;

Boget, D. ;

De Bonis, I. ;

Coco, V. ;

David, P. Y. ;

Decamp, D. ;

Delebecque, P. ;

Drancourt, C. ;

Dumont-Dayot, N. ;

Girard, C. ;

Lieunard, B. ;

Minard, M. N. ;

Pietrzyk, B. ;

Rambure, T. ;

Rospabe, G. ;

T'Jampens, S. ;

Ajaltouni, Z. ;

Bohner, G. ;

Bonnefoy, R. ;

Borras, D. ;

Carloganu, C. ;

Chanal, H. ;

Conte, E. ;

Cornat, R. .

JOURNAL OF INSTRUMENTATION, 2008, 3

[8]

[Anonymous], 1984, OLSHEN STONE CLASSIF, DOI 10.2307/2530946

[9]

[Anonymous], ARXIV12012401

[10]

[Anonymous], 2012, ARXIV12071158

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