Search for A′ → μ+μ- Decays

被引:136
作者
Aaij, R. [31 ]
Beteta, C. Abellan [49 ]
Ackernley, T. [59 ]
Adeva, B. [45 ]
Adinolfi, M. [53 ]
Afsharnia, H. [9 ]
Aidala, C. A. [67 ,79 ]
Aiola, S. [25 ]
Ajaltouni, Z. [9 ]
Akar, S. [64 ]
Albicocco, P. [22 ]
Albrecht, J. [14 ]
Alessio, F. [47 ]
Alexander, M. [58 ]
Albero, A. Alfonso [44 ]
Alkhazov, G. [37 ]
Cartelle, P. Alvarez [60 ]
Alves Jr, A. A. [45 ]
Amato, S. [2 ]
Amhis, Y. [11 ]
An, L. [21 ]
Anderlini, L. [21 ]
Andreassi, G. [48 ]
Andreotti, M. [20 ]
Archilli, F. [16 ]
Romeu, J. Arnau [10 ]
Artamonov, A. [43 ]
Artuso, M. [67 ]
Arzymatov, K. [41 ]
Aslanides, E. [10 ]
Atzeni, M. [49 ]
Audurier, B. [26 ]
Bachmann, S. [16 ]
Back, J. J. [55 ]
Baker, S. [60 ]
Balagura, V [11 ,81 ]
Baldini, W. [20 ,47 ]
Baranov, A. [41 ]
Barlow, R. J. [61 ]
Barsuk, S. [11 ]
Barter, W. [60 ]
Bartolini, M. [23 ,47 ,87 ]
Baryshnikov, F. [38 ,76 ]
Bassi, G. [28 ]
Batozskaya, V [35 ]
Batsukh, B. [67 ]
Battig, A. [14 ]
Battista, V [48 ]
Bay, A. [48 ]
Becker, M. [14 ]
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, Peoples R China
[4] Peking Univ, Sch Phys, State Key Lab Nucl Phys & Technol, Beijing, Peoples R China
[5] Univ Chinese Acad Sci, Beijing, Peoples R China
[6] Inst High Energy Phys, Beijing, Peoples R China
[7] Cent China Normal Univ, Inst Particle Phys, Wuhan, Hubei, Peoples R China
[8] Univ Grenoble Alpes, Univ Savoie Mt Blanc, CNRS, IN2P3,LAPP, Annecy, France
[9] Univ Clermont Auvergne, LPC, IN2P3, CNRS, Clermont Ferrand, France
[10] Aix Marseille Univ, CPPM, IN2P3, CNRS, Marseille, France
[11] Univ Paris Sud, Univ Paris Saclay, IN2P3, CNRS,LAL, Orsay, France
[12] Sorbonne Univ, IN2P3, CNRS, Paris Diderot Sorbonne Paris Cite,LPNHE, Paris, France
[13] Rhein Westfal TH Aachen, Phys Inst 1, Aachen, Germany
[14] Tech Univ Dortmund, Fak Phys, Dortmund, Germany
[15] Max Planck Inst Kernphys, Heidelberg, Germany
[16] Heidelberg Univ, Phys Inst, Heidelberg, Germany
[17] Univ Coll Dublin, Sch Phys, Dublin, Ireland
[18] INFN, Sez Bari, Bari, Italy
[19] INFN, Sez Bologna, Bologna, Italy
[20] INFN, Sez Ferrara, Ferrara, Italy
[21] INFN, Sez Firenze, Florence, Italy
[22] INFN, Lab Nazl Frascati, Frascati, Italy
[23] INFN, Sez Genova, Genoa, Italy
[24] INFN, Sez Milano Bicocca, Milan, Italy
[25] INFN, Sez Milano, Milan, Italy
[26] INFN, Sez Cagliari, Monserrato, Italy
[27] INFN, Sez Padova, Padua, Italy
[28] INFN, Sez Pisa, Pisa, Italy
[29] INFN, Sez Roma Tor Vergata, Rome, Italy
[30] INFN, Sez Roma La Sapienza, Rome, Italy
[31] Nikhef Natl Inst Subat Phys, Amsterdam, Netherlands
[32] Vrije Univ Amsterdam, Amsterdam, Netherlands
[33] Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, Krakow, Poland
[34] AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, Krakow, Poland
[35] Natl Ctr Nucl Res NCBJ, Warsaw, Poland
[36] Horia Hulubei Natl Inst Phys & Nucl Engn, Bucharest, Romania
[37] KI, NRC, PNPI, Gatchina, Russia
[38] KI, NRC, ITEP, Moscow, Russia
[39] Moscow State Univ SINP MSU, Inst Nucl Phys, Moscow, Russia
[40] Russian Acad Sci, Inst Nucl Res, Moscow, Russia
[41] Yandex Sch Data Anal, Moscow, Russia
[42] Budker Inst Nucl Phys SB RAS, Novosibirsk, Russia
[43] KI, NRC, IHEP, Protvino, Russia
[44] Univ Barcelona, ICCUB, Barcelona, Spain
[45] Univ Santiago de Compostela, IGFAE, Santiago De Compostela, Spain
[46] Univ Valencia, Ctr Mixto, Inst Fis Corpuscular, CSIC, Valencia, Spain
[47] CERN, European Org Nucl Res, Geneva, Switzerland
[48] Ecole Polytech Fed Lausanne, Inst Phys, Lausanne, Switzerland
[49] Univ Zurich, Phys Inst, Zurich, Switzerland
[50] Kharkiv Inst Phys & Technol, NSC, Kharkiv, Ukraine
基金
英国科学技术设施理事会;
关键词
VECTOR GAUGE BOSON; PHI-MESON DECAYS; DARK PHOTON; EXCLUSION LIMITS; HEAVY NEUTRINOS; MASS RANGE; U-GAMMA; PARTICLES; E(+)E(-); FORCES;
D O I
10.1103/PhysRevLett.124.041801
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Searches are performed for both promptlike and long-lived dark photons, A ', produced in proton-proton collisions at a center-of-mass energy of 13 TeV. These searches look for A '->mu(+)mu(-) decays using a data sample corresponding to an integrated luminosity of 5.5 fb(-1) collected with the LHCb detector. Neither search finds evidence for a signal, and 90% confidence-level exclusion limits are placed on the gamma-A ' kinetic mixing strength. The promptlike A ' search explores the mass region from near the dimuon threshold up to 70 GeV and places the most stringent constraints to date on dark photons with 214 < m(A ') less than or similar to 740 MeV and 10.6 < m(A ') less than or similar to 30 GeV. The search for long-lived A '->mu(+)mu(-) decays places world-leading constraints on low-mass dark photons with lifetimes O(1)ps.
引用
收藏
页数:12
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