ar X iv : h ep - e x / 05 01 05 7 v 1 2 1 Ja n 20 05 UCHEP - 04 - 03 φ 2 Measurement Using B → ρπ decays at Belle
نویسنده
چکیده
We present measurements of time-dependent asymmetries in decays of neutral B mesons to the final states B 0 → ρ ± π ∓. Measurements are based on a 140 f b −1 data sample collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e + e − collider.
منابع مشابه
ar X iv : h ep - e x / 04 10 02 5 v 1 7 O ct 2 00 4 UCHEP - 04 - 01 Constraints upon the CKM angle φ 2 from Belle and BaBar
The Standard Model predicts CP violation to occur in B meson decays due to a complex phase in the 3×3 Cabibbo-Kobayashi-Maskawa (CKM) mixing matrix. This phase is illustrated by plotting the unitarity condition V ∗ ubVud + V ∗ cbVcd + V ∗ tbVtd = 0 as vectors in the complex plane: the phase results in a triangle of nonzero height. One interior angle of the triangle, denoted φ1 or β, is determin...
متن کاملar X iv : h ep - e x / 04 11 06 5 v 2 2 6 Fe b 20 05 BELLE Belle Preprint 2004 - 34 KEK Preprint 2004 - 69 Observation of B + →
We report measurements of radiative B decays with Kηγ final states, using a data sample of 253 fb recorded at the Υ(4S) resonance with the Belle detector at the KEKB e+e− storage ring. We observe B+ → K+ηγ for the first time with a
متن کاملar X iv : h ep - e x / 04 10 02 5 v 2 2 9 O ct 2 00 4 UCHEP - 04 - 01 Constraints upon the CKM angle φ 2 from Belle and
The Standard Model predicts CP violation to occur in B meson decays owing to a complex phase in the 3×3 Cabibbo-Kobayashi-Maskawa (CKM) mixing matrix. This phase is illustrated by plotting the unitarity condition V ∗ ubVud + V ∗ cbVcd + V ∗ tbVtd = 0 as vectors in the complex plane: the phase results in a triangle of nonzero height. One interior angle of the triangle, denoted φ1 or β, is determ...
متن کاملar X iv : h ep - p h / 05 01 25 4 v 1 2 7 Ja n 20 05 UT - 05 - 01 Strongly Coupled Gauge Mediation
A model of gauge mediation with m 3/2 ≃ O(1) eV is considered to motivate 100 TeV colliders. Massive mediators with standard-model and supersymmetry-breaking gauge quantum numbers let low-scale dynamics induce sizable soft masses of the standard-model superpartners. We circumvent potential phenomenological difficulties that such low-scale models tend to cause.
متن کاملar X iv : h ep - t h / 05 01 21 8 v 1 2 7 Ja n 20 05 Radial evolution in anti - de Sitter spacetime
We derive properties of the radial evolution of scalar fields in anti-de Sitter spacetime from quantum mechanics, through a factorisation of the path integral. We describe why we anticipate application of these results to the AdS/CFT correspondence.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2005