Search for Rare or Forbidden Decays of the D0 Meson

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Lees, JP, Poireau, V, Tisserand, V, Grauges, E, Palano, A, Eigen, G, Brown, DN, Kolomensky, YG, Fritsch, M, Koch, H et al (show 90 more authors) , Schroeder, T, Cheaib, R, Hearty, C, Mattison, TS, McKenna, JA, So, RY, Blinov, VE, Buzykaev, AR, Druzhinin, VP, Golubev, VB, Kozyrev, EA, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, YI, Solodov, EP, Todyshev, KY, Lankford, AJ, Dey, B, Gary, JW, Long, O, Eisner, AM, Lockman, WS, Panduro Vazquez, W, Chao, DS, Cheng, CH, Echenard, B, Flood, KT, Hitlin, DG, Kim, J, Li, Y, Miyashita, TS, Ongmongkolkul, P, Porter, FC, Röhrken, M, Huard, Z, Meadows, BT, Pushpawela, BG, Sokoloff, MD, Sun, L, Smith, JG, Wagner, SR, Bernard, D, Verderi, M, Bettoni, D, Bozzi, C, Calabrese, R, Cibinetto, G, Fioravanti, E, Garzia, I, Luppi, E, Santoro, V, Calcaterra, A, De Sangro, R, Finocchiaro, G, Martellotti, S, Patteri, P, Peruzzi, IM, Piccolo, M, Rotondo, M, Zallo, A, Passaggio, S, Patrignani, C, Shuve, BJ, Lacker, HM, Bhuyan, B, Mallik, U, Chen, C, Cochran, J, Prell, S, Gritsan, AV, Arnaud, N, Davier, M, Le Diberder, F, Lutz, AM, Wormser, G, Lange, DJ, Wright, DM, Coleman, JP ORCID: 0000-0003-1319-0889, Gabathuler, E, Hutchcroft, DE ORCID: 0000-0002-4174-6509, Payne, DJ, Touramanis, C ORCID: 0000-0001-5191-2171, Bevan, AJ, Di Lodovico, F, Sacco, R, Cowan, G, Banerjee, S, Brown, DN and Davis, CL (2020) Search for Rare or Forbidden Decays of the D0 Meson Physical Review Letters, 124 (7). 071802-. ISSN 0031-9007, 1079-7114

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Abstract

We present a search for nine lepton-number-violating and three lepton-flavor-violating neutral charm decays of the type D0→h′-h-′++ and D0→h′-h+′±, where h and h′ represent a K or π meson and and ′ an electron or muon. The analysis is based on 468 fb-1 of e+e- annihilation data collected at or close to the (4S) resonance with the BABAR detector at the SLAC National Accelerator Laboratory. No significant signal is observed for any of the twelve modes, and we establish 90% confidence level upper limits on the branching fractions in the range (1.0-30.6)×10-7. The limits are between 1 and 3 orders of magnitude more stringent than previous measurements.

Item Type:	Article
Additional Information:	8 pages, 2 figures
Uncontrolled Keywords:	<i>B<span class="sc">a</span>B<span class="sc">ar</span></i> Collaboration
Divisions:	Faculty of Science & Engineering > School of Physical Sciences
Depositing User:	Symplectic Admin
Date Deposited:	08 May 2019 10:26
Last Modified:	22 Jan 2026 08:53
DOI:	10.1103/PhysRevLett.124.071802
Open Access URL:	https://doi.org/10.1103/PhysRevLett.124.071802
Related Websites:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3040040
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