Abazov, V. M. ; Mondal, N. K. ; et., al (2008) Search for flavor-changing-neutral-current D meson decays Physical Review Letters, 100 (10). 101801_1-101801_7. ISSN 0031-9007
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Official URL: http://prl.aps.org/abstract/PRL/v100/i10/e101801
Related URL: http://dx.doi.org/10.1103/PhysRevLett.100.101801
Abstract
We study the flavor-changing-neutral-current process c→uμ+μ - using 1.3 fb-1 of pp‾ collisions at √s=1.96 TeV recorded by the D0 detector operating at the Fermilab Tevatron Collider. We see clear indications of the charged-current mediated Ds+ and D+→Φπ +→μ+μ-π + final states with significance greater than 4 standard deviations above background for the D+ state. We search for the continuum neutral-current decay of D+→π+μ+μ- in the dimuon invariant mass spectrum away from the Φ resonance. We see no evidence of signal above background and set a limit of B(D+→π+μ+μ-)< 3.9×10-6 at the 90% C.L. This limit places the most stringent constraint on new phenomena in the c→uμ+μ- transition.
Item Type: | Article |
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Source: | Copyright of this article belongs to The American Physical Society. |
ID Code: | 66954 |
Deposited On: | 28 Oct 2011 03:52 |
Last Modified: | 28 Oct 2011 03:52 |
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