Search for the flavor-changing neutral current decay D0→ μ+μ-in pp̄ collisions at √s = 1.96TeV

D. Acosta, T. Affolder, M. H. Ahn, T. Akimoto, M. G. Albrow, D. Ambrose, D. Amidei, A. Anastassov, K. Anikeev, A. Annovi, J. Antos, M. Aoki, G. Apollinari, J. F. Arguin, T. Arisawa, A. Artikov, T. Asakawa, W. Ashmanskas, A. Attal, F. AzfarP. Azzi-Bacchetta, N. Bacchetta, H. Bachacou, W. Badgett, S. Bailey, A. Barbaro-Galtieri, G. Barker, V. E. Barnes, B. A. Barnett, S. Baroiant, M. Barone, G. Bauer, F. Bedeschi, S. Behari, S. Belforte, W. H. Bell, G. Bellettini, J. Bellinger, D. Benjamin, A. Beretvas, A. Bhatti, M. Binkley, D. Bisello, M. Bishai, R. E. Blair, C. Blocker, K. Bloom, B. Blumenfeld, A. Bocci, A. Bodek, G. Bolla, A. Bolshov, P. S.L. Booth, D. Bortoletto, J. Boudreau, S. Bourov, C. Bromberg, M. Brozovic, E. Brubaker, J. Budagov, H. S. Budd, K. Burkett, G. Busetto, P. Bussey, K. L. Byrum, S. Cabrera, P. Calafiura, M. Campanelli, M. Campbell, A. Canepa, D. Carlsmith, S. Carron, R. Carosi, M. Casarsa, W. Caskey, A. Castro, P. Catastini, D. Cauz, A. Cerri, C. Cerri, L. Cerrito, J. Chapman, C. Chen, Y. C. Chen, M. Chertok, G. Chiarelli, G. Chlachidze, F. Chlebana, K. Cho, D. Chokheli, M. L. Chu, J. Y. Chung, W. H. Chung, Y. S. Chung, C. I. Ciobanu, M. A. Ciocci, A. G. Clark, M. N. Coca, A. Connolly

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16 Citations (Scopus)


We report on a search for the flavor-changing neutral current decay D 0→μ+μ- in pp̄ collisions at √s = 1.96 TeV using 65 pb-1 of data collected by the CDF II experiment at the Fermilab Tevatron Collider. A displaced-track trigger selects long-lived D0 candidates in the D0→μ +μ- search channel, the kinematically similar D 0→π+π- channel used for normalization, the Cabibbo-favored D0K-π- channel used to optimize the selection criteria in an unbiased manner, and their charge conjugates. Finding no signal events in the D0→μ +μ- search window, we set an upper limit on the branching fraction B(D0→μ+μ-)≤2. 5× 10-6 (3.3× 10-6) at the 90% (95%) confidence level.

Original languageEnglish
Article number091101
JournalPhysical Review D
Issue number9
Publication statusPublished - 2003

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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