Search for D{sup 0}-D{sup 0} mixing using semileptonic decays at Belle

Journal Article · Sat Oct 01 00:00:00 EDT 2005 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.72.071101· OSTI ID:20713605

Bitenc, U; Bizjak, I; Fratina, S; Gorisek, A; Pestotnik, R; Staric, M ^[1]; Abe, K; Adachi, I; Dragic, J; Gershon, T; Haba, J; Hazumi, M; Ishikawa, A; Itoh, R; Iwasaki, Y; Katayama, N; Kichimi, H; Nishida, S; Nozaki, T; Sakai, Y ^[2]

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1. J. Stefan Institute, Ljubljana (Slovenia)
2. High Energy Accelerator Research Organization (KEK), Tsukuba (Japan); and others

A search for mixing in the neutral D meson system has been performed using semileptonic D{sup 0}{yields}K{sup (}*{sup )-}e{sup +}{nu} decays. Neutral D mesons from D*{sup +}{yields}D{sup 0}{pi}{sup +} decays are used; the flavor at production is tagged by the charge of the slow pion. The measurement is performed using 253 fb{sup -1} of data recorded by the Belle detector. From the yield of right-sign and wrong-sign decays arising from nonmixed and mixed events, respectively, we estimate the upper limit of the time-integrated mixing rate to be r{sub D}<1.0x10{sup -3} at 90% C.L.

• OSTI ID: 20713605
• Journal Information: Physical Review. D, Particles Fields, Vol. 72, Issue 7; Other Information: DOI: 10.1103/PhysRevD.72.071101; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA). Belle Collaboration; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
D NEUTRAL MESONS
D*-2010 MESONS
FLAVOR MODEL
MULTIPARTICLE SPECTROMETERS
NEUTRINOS
PARTICLE IDENTIFICATION
PIONS PLUS
POSITRONS
SEMILEPTONIC DECAY