Chinese Physics C > 2008, Vol. 32 > Issue(6): 495-498 DOI: 10.1088/1674-1137/32/6/018

Study of D_s^±→μ^±ν_μat Belle

B. Golob (for the Belle Collaboration)

Jozef Stefan Institute and Faculty of Mathematics and Physics, Univ. of Ljubljana, Ljubljana, Slovenia

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Abstract：

We present a preliminary measurement of the B(D_s→μν_μ) with the Belle
experiment at the KEKB collider. We select D_s→μν_μdecays with a method that provides a high-purity of the selected sample and an absolute measurement of the branching fraction. The results are based on a data sample of 550fb^－1and are compared to similar measurements by other experiments as well as to the predictions of LQCD. We conclude with short prospects for improvements in the accuracy of the measurement.

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B. Golob (for the Belle Collaboration). Study of D _s ^±→μ ^±ν _μat Belle[J]. Chinese Physics C, 2008, 32(6): 495-498. doi: 10.1088/1674-1137/32/6/018

B. Golob (for the Belle Collaboration). Study of D _s ^±→μ ^±ν _μat Belle[J]. Chinese Physics C, 2008, 32(6): 495-498. doi:10.1088/1674-1137/32/6/018 shu

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Received: 2008-01-19
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Study of D_s^±→μ^±ν_μat Belle

B. Golob (for the Belle Collaboration)

Jozef Stefan Institute and Faculty of Mathematics and Physics, Univ. of Ljubljana, Ljubljana, Slovenia

Received Date:2008-01-19
Accepted Date:1900-01-01
Available Online:2008-06-05

Abstract:

We present a preliminary measurement of the B(D_s→μν_μ) with the Belle
experiment at the KEKB collider. We select D_s→μν_μdecays with a method that provides a high-purity of the selected sample and an absolute measurement of the branching fraction. The results are based on a data sample of 550fb^－1and are compared to similar measurements by other experiments as well as to the predictions of LQCD. We conclude with short prospects for improvements in the accuracy of the measurement.