Research output: Contribution to journal › Article › peer-review
Search for lepton-number- And baryon-number-violating tau decays at Belle. / The BELLE collaboration ; Гудкова, Кристина Сергеевна.
In: Physical Review D, Vol. 102, No. 11, 111101, 24.12.2020.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Search for lepton-number- And baryon-number-violating tau decays at Belle
AU - The BELLE collaboration
AU - Sahoo, D.
AU - Mohanty, G. B.
AU - Trabelsi, K.
AU - Adachi, I.
AU - Adamczyk, K.
AU - Aihara, H.
AU - Al Said, S.
AU - Asner, D. M.
AU - Aushev, T.
AU - Ayad, R.
AU - Aziz, T.
AU - Babu, V.
AU - Bahinipati, S.
AU - Behera, P.
AU - Bennett, J.
AU - Bessner, M.
AU - Bhardwaj, V.
AU - Bilka, T.
AU - Biswal, J.
AU - Bonvicini, G.
AU - Bozek, A.
AU - Bračko, M.
AU - Browder, T. E.
AU - Campajola, M.
AU - Cao, L.
AU - Červenkov, D.
AU - Chang, M. C.
AU - Chang, P.
AU - Chekelian, V.
AU - Chen, A.
AU - Cheon, B. G.
AU - Chilikin, K.
AU - Cho, H. E.
AU - Cho, K.
AU - Choi, S. K.
AU - Choi, Y.
AU - Choudhury, S.
AU - Cinabro, D.
AU - Cunliffe, S.
AU - Eidelman, S.
AU - Epifanov, D.
AU - Garmash, A.
AU - Krokovny, P.
AU - Kuzmin, A.
AU - Matvienko, D.
AU - Shwartz, B.
AU - Vinokurova, A.
AU - Vorobyev, V.
AU - Zhilich, V.
AU - Zhulanov, V.
AU - Гудкова, Кристина Сергеевна
N1 - Funding Information: We acknowledge fruitful discussions with and helpful suggestions from S. Mahapatra (Utkal University), E. Passemar (Indiana University), and P. S. Bhupal Dev (Washington University). We thank the KEKB group for excellent operation of the accelerator; the KEK cryogenics group for efficient solenoid operations; and the KEK computer group, the NII, and PNNL/EMSL for valuable computing and SINET5 network support. We acknowledge support from MEXT, JSPS and Nagoya’s TLPRC (Japan); ARC (Australia); FWF (Austria); NSFC and CCEPP (China); MSMT (Czechia); CZF, DFG, EXC153, and VS (Germany); DAE and DST (India); INFN (Italy); MOE, MSIP, NRF, RSRI, FLRFAS project, GSDC of KISTI and KREONET/GLORIAD (Korea); MNiSW and NCN (Poland); MSHE, Agreement 14.W03.31.0026 (Russia); University of Tabuk (Saudi Arabia); ARRS (Slovenia); IKERBASQUE (Spain); SNSF (Switzerland); MOE and MOST (Taiwan); and DOE and NSF (USA). Publisher Copyright: © 2020 authors. Published by the American Physical Society. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2020/12/24
Y1 - 2020/12/24
N2 - We search for lepton-number- and baryon-number-violating decays τ-→p¯e+e-, pe-e-, p¯e+μ-, p¯e-μ+, p¯μ+μ-, and pμ-μ- using 921 fb-1 of data, equivalent to (841±12)×106 τ+τ- events, recorded with the Belle detector at the KEKB asymmetric-energy e+e- collider. In the absence of a signal, 90% confidence-level upper limits are set on the branching fractions of these decays in the range (1.8-4.0)×10-8. We set the world's first limits on the first four channels and improve the existing limits by an order of magnitude for the last two channels.
AB - We search for lepton-number- and baryon-number-violating decays τ-→p¯e+e-, pe-e-, p¯e+μ-, p¯e-μ+, p¯μ+μ-, and pμ-μ- using 921 fb-1 of data, equivalent to (841±12)×106 τ+τ- events, recorded with the Belle detector at the KEKB asymmetric-energy e+e- collider. In the absence of a signal, 90% confidence-level upper limits are set on the branching fractions of these decays in the range (1.8-4.0)×10-8. We set the world's first limits on the first four channels and improve the existing limits by an order of magnitude for the last two channels.
KW - MONTE-CARLO
KW - IDENTIFICATION
KW - SIMULATION
UR - http://www.scopus.com/inward/record.url?scp=85099363380&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.102.111101
DO - 10.1103/PhysRevD.102.111101
M3 - Article
AN - SCOPUS:85099363380
VL - 102
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 11
M1 - 111101
ER -
ID: 27486541