/ 03 12 01 5 v 1 4 D ec 2 00 3 Measurements of direct CP violation
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ar X iv : h ep - e x / 01 12 02 6 v 1 1 9 D ec 2 00 1 Results on CP Violation from Belle
I describe the recent measurement of the CP violating parameter sin 2φ 1 = (0.99 ± 0.14 ± 0.05) from the Belle experiment at KEK.
متن کاملar X iv : h ep - p h / 03 11 20 9 v 2 1 2 D ec 2 00 3 What we have learned from direct CP violation studies in kaon decays
A self-consistent analysis of K → 2π and K → 3π decays within a unique framework of chiral dynamics applied to the QCD-corrected weak nonleptonic quark lagrangian has been performed. The results on K → 2π amplitudes at O(p), including the value for ε ′ /ε, are compared with experiment to fix phenomenological B-factors for mesonic matrix elements of nonpenguin and penguin four-quark operators. T...
متن کاملar X iv : 1 40 3 . 55 86 v 3 [ he p - ex ] 1 1 D ec 2 01 4 Measurements of Direct CP - Violating Asymmetries in Charmless Decays of Bottom Baryons
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ar X iv : h ep - p h / 00 09 02 3 v 1 4 S ep 2 00 0 1 Isospin symmetry breaking and direct CP violation in B →
We discuss the isospin symmetry breaking quantity ∆ ±0 ≡ Γ(B ± → ρ ± γ)/2Γ(B 0 → ρ 0 γ)−1, and the direct CP violation in B ± → ρ ± γ within and beyond the standard model. After showing that the leading-order calculation would be a good approximation in such models, we argue that measurements of these quantities would be able to disentagle physics beyond the standard model.
متن کاملar X iv : h ep - p h / 01 03 34 8 v 3 3 A pr 2 00 1 ACT - 03 / 01 , CTP - TAMU - 11 / 01 ,
In this letter we explore the possibility of creating the baryon asymmetry of the universe during inflation and reheating due to the decay of a field associated with the inflaton. CP violation is attained by assuming that this field is complex with a phase that varies as the inflaton evolves. We consider chaotic and natural inflation scenarios. In the former case, the complex decaying field is ...
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تاریخ انتشار 2003