Search for Lepton-Flavor-Violating τ Decays to a Lepton and an Invisible Boson at Belle II

被引：12
|
作者：
Adachi, I.
Adamczyk, K.
Aggarwal, L.
Ahmed, H.
Aihara, H.
Akopov, N.
Aloisio, A.
Ky, N. Anh
Asner, D. M.
Aushev, T.
Aushev, V.
Bae, H.
Bahinipati, S.
Bambade, P.
Banerjee, Sw
Baudot, J.
Bauer, M.
Baur, A.
Beaubien, A.
Becker, J.
Behera, P. K.
V. Bennett, J.
Bernieri, E.
Bernlochner, F. U.
Bertacchi, V.
Bertemes, M.
Bertholet, E.
Bessner, M.
Bettarini, S.
Bhuyan, B.
Bianchi, F.
Bilka, T.
Bilokin, S.
Biswas, D.
Bodrov, D.
Bolz, A.
Borah, J.
Bozek, A.
Bracko, M.
Branchini, P.
Browder, T. E.
Budano, A.
Bussino, S.
Campajola, M.
Cao, L.
Casarosa, G.
Cecchi, C.
Chang, M. -C.
Chang, P.
Cheaib, R.
机构：
来源：
PHYSICAL REVIEW LETTERS | 2023年 / 130卷 / 18期
基金：
欧洲研究理事会; 加拿大自然科学与工程研究理事会; 中国国家自然科学基金; 澳大利亚研究理事会; 以色列科学基金会; 日本学术振兴会; 欧盟地平线“2020”; 新加坡国家研究基金会; 奥地利科学基金会; 美国国家科学基金会;
关键词：
LOWEST-ORDER CALCULATIONS; RADIATIVE-CORRECTIONS; MONTE-CARLO; FINAL-STATES; SIMULATION;
D O I：
10.1103/PhysRevLett.130.181803
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We search for lepton-flavor-violating tau- -> e-alpha and tau- -> mu-alpha decays, where alpha is an invisible spin-0 boson. The search uses electron-positron collisions at 10.58 GeV center-of-mass energy with an integrated luminosity of 62.8 fb-1, produced by the SuperKEKB collider and collected with the Belle II detector. We search for an excess in the lepton-energy spectrum of the known tau- -> e- nu over bar e nu tau and tau- -> mu- nu over bar mu nu tau decays. We report 95% confidence-level upper limits on the branching-fraction ratio Bo tau- -> e-alpha thorn =Bo tau- -> e-nu over bar e nu tau thorn in the range o1.1-9.7 thorn x 10-3 and on Bo tau- -> mu- alpha thorn =Bo tau- -> mu- nu over bar mu nu tau thorn in the range o0.7-12.2 thorn x 10-3 for alpha masses between 0 and 1.6 GeV=c2. These results provide the most stringent bounds on invisible boson production from tau decays.
引用
收藏
页数：7
相关论文
共 50 条
  • [31] Search for lepton flavor and lepton number violating τ decays into a lepton and two charged mesons
    Miyazaki, Y.
    Aihara, H.
    Arinstein, K.
    Aulchenko, V.
    Aushev, I.
    Bakich, A. M.
    Balagura, V.
    Barberio, E.
    Bay, A.
    Belous, K.
    Bhardwaj, V.
    Bischofberger, M.
    Bondar, A.
    Bracko, M.
    Browder, T. E.
    Chang, P.
    Chen, A.
    Cheon, B. G.
    Cho, I. -S.
    Choi, Y.
    Dalseno, J.
    Dash, M.
    Dungel, W.
    Eidelman, S.
    Epifanov, D.
    Feindt, M.
    Gabyshev, N.
    Garmash, A.
    Goldenzweig, P.
    Ha, H.
    Haba, J.
    Hara, K.
    Hasegawa, Y.
    Hayasaka, K.
    Hayashii, H.
    Horii, Y.
    Hoshi, Y.
    Hou, W. -S.
    Hyun, H. J.
    Iijima, T.
    Inami, K.
    Itoh, R.
    Iwasaki, M.
    Iwasaki, Y.
    Julius, T.
    Kah, D. H.
    Kang, J. H.
    Kawai, H.
    Kawasaki, T.
    Kim, H. O.
    PHYSICS LETTERS B, 2010, 682 (4-5) : 355 - 362
  • [32] Search for lepton-flavor-violating τ decay into a lepton and an f0(980) meson
    Miyazaki, Y.
    Adachi, I.
    Aihara, H.
    Arinstein, K.
    Aushev, T.
    Bakich, A. M.
    Bay, A.
    Bedny, I.
    Bitenc, U.
    Bondar, A.
    Bozeky, A.
    Bracko, M.
    Browder, T. E.
    Chen, A.
    Cheon, B. G.
    Cho, I. -S.
    Choi, Y.
    Dalseno, J.
    Dash, M.
    Drutskoy, A.
    Eidelman, S.
    Epifanov, D.
    Gabyshev, N.
    Goldenzweig, P.
    Ha, H.
    Haba, J.
    Hara, K.
    Hayasaka, K.
    Hayashii, H.
    Heffernan, D.
    Horii, Y.
    Hoshi, Y.
    Hou, W. -S.
    Hyun, H. J.
    Iijima, T.
    Inami, K.
    Ishikawa, A.
    Iwasaki, M.
    Iwasaki, Y.
    Kah, D. H.
    Kaji, H.
    Kawai, H.
    Kawasaki, T.
    Kichimi, H.
    Kim, H. O.
    Kim, Y. J.
    Korpar, S.
    Krizan, P.
    Krokovny, P.
    Kumar, R.
    PHYSICS LETTERS B, 2009, 672 (4-5) : 317 - 322
  • [33] MONTE CARLO STUDIES OF LEPTON FLAVOR VIOLATING B → Kτℓ DECAYS AT BELLE/BELLE II
    Rehman, J. U.
    ACTA PHYSICA POLONICA B PROCEEDINGS SUPPLEMENT, 2024, 17 (05)
  • [34] Search for new physics in lepton flavor violating decays τ→l+π0/η/η′ at belle
    Enari, Y
    NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 2005, 144 : 161 - 166
  • [35] Semileptonic lepton-number- and/or lepton-flavor-violating tau decays in Majorana neutrino models
    Ilakovac, A
    Kniehl, BA
    Pilaftsis, A
    PHYSICAL REVIEW D, 1995, 52 (07) : 3993 - 4005
  • [36] Search for lepton flavor violating τ decays into three leptons
    Miyazaki, Y.
    Adachi, I.
    Aihara, H.
    Arinstein, K.
    Aulchenko, V.
    Aushev, T.
    Bakichi, A. M.
    Balagura, V.
    Barberio, E.
    Bay, A.
    Bitenc, U.
    Bondar, A.
    Bozek, A.
    Bracko, M.
    Browder, T. E.
    Chen, A.
    Chen, K. -F.
    Chen, W. T.
    Cheon, B. G.
    Chistov, R.
    Cho, I. -S.
    Choi, Y.
    Dash, M.
    Drutskoy, A.
    Eidelman, S.
    Epifanov, D.
    Gabyshev, N.
    Ha, H.
    Haba, J.
    Hara, K.
    Hayasaka, K.
    Hayashii, H.
    Hazumi, M.
    Hefferman, D.
    Hoshi, Y.
    Hou, W. -S.
    Hsiung, Y. B.
    Hyun, H. J.
    Iijima, T.
    Inami, K.
    Ishikawa, A.
    Itoh, R.
    Iwasaki, M.
    Iwasaki, Y.
    Kah, D. H.
    Kaji, H.
    Kapusta, P.
    Kawai, H.
    Kawasaki, T.
    Kichimi, H.
    PHYSICS LETTERS B, 2008, 660 (03) : 154 - 160
  • [37] A SEARCH FOR LEPTON FLAVOR VIOLATING Z(0) DECAYS
    AKERS, R
    ALEXANDER, G
    ALLISON, J
    ALTEKAMP, N
    AMETEWEE, K
    ANDERSON, KJ
    ANDERSON, S
    ARCELLI, S
    ASAI, S
    AXEN, B
    AZUELOS, G
    BALL, AH
    BARBERIO, E
    BARLOW, RJ
    BARTOLDUS, R
    BATLEY, JR
    BEAUDOIN, G
    BETHKE, S
    BECK, A
    BECK, GA
    BEESTON, C
    BEHNKE, T
    BELL, KW
    BELLA, G
    BENTVELSEN, S
    BERLICH, P
    BECHTLUFT, J
    BIEBEL, O
    BLOODWORTH, IJ
    BOCK, P
    BOSCH, HM
    BOUTEMEUR, M
    BRAIBANT, S
    BRIGHTTHOMAS, P
    BROWN, RM
    BUIJS, A
    BURCKHART, HJ
    BURGIN, R
    BURGARD, C
    CAPILUPPI, P
    CARNEGIE, RK
    CARTER, AA
    CARTER, JR
    CHANG, CY
    CHARLESWORTH, C
    CHARLTON, DG
    CHU, SL
    CLARKE, PEL
    CLAYTON, JC
    CLOWES, SG
    ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1995, 67 (04): : 555 - 563
  • [38] Lepton flavor violating decays of vector quarkonia and of the Z boson
    Abada, A.
    Becirevic, D.
    Lucente, M.
    Sumensari, O.
    PHYSICAL REVIEW D, 2015, 91 (11)
  • [39] Asymmetric lepton-flavor violating Higgs boson decays
    Bressler, Shikma
    Dery, Avital
    Efrati, Aielet
    PHYSICAL REVIEW D, 2014, 90 (01):
  • [40] Search for rare and lepton-flavor violating decays of the Higgs boson with the ATLAS detector
    Mlynarikova, Michaela
    INTERNATIONAL JOURNAL OF MODERN PHYSICS A, 2020, 35 (34-35):
12345