6 M ay 2 00 6 MEASUREMENT OF FORWARD - BACKWARD ASYMMETRY IN
نویسنده
چکیده
We report the first measurement of the forward-backward asymmetry and the ratios of Wilson coefficients in B → K * ℓ + ℓ − , using 386 ×10 6 B ¯ B pairs that were collected on the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e + e − collider. We also present the first evidence of the decay B − → τ − ¯ ντ , using 414 fb −1 of data.
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تاریخ انتشار 2006