Isospin symmetry in mirror α decays
نویسندگان
چکیده
N. K. Timofeyuk,1 P. Descouvemont,2 and R. C. Johnson1 1Department of Physics, School of Electronics and Physical Sciences, University of Surrey, Guildford, Surrey GU2 7XH, United Kingdom 2Physique Nucléaire Théorique et Physique Mathématique, CP229 Université Libre de Bruxelles, B-1050 Brussels, Belgium (Received 2 October 2006; revised manuscript received 18 December 2006; published 12 March 2007)
منابع مشابه
= 1 / 2 rule in Ω − two body non - leptonic decays
Mirror matter admixtures and isospin breaking in the |∆I| = 1/2 rule in Ω − two body non-leptonic decays Abstract We discuss a description of Ω − two body non-leptonic decays based on possible , albeit tiny, admixtures of mirror matter in ordinary hadrons. The |∆I| = 1/2 rule enhancement is obtained as a result of isospin symmetry and, more importantly, the rather large observed deviations from...
متن کاملar X iv : h ep - p h / 99 06 26 9 v 1 6 J un 1 99 9 UK
An isospin analysis of B → ππ decays yields sin 2α, where α is the usual CKM angle α ≡ arg[−V td V * tb /(V ud V * ub)] without hadronic uncertainty if isospin is a perfect symmetry. Yet isospin symmetry is broken not only by electroweak effects but also by the u and d quark mass difference — the latter drives π 0 − η, η ′ mixing and converts the isospin-perfect triangle relation between the B ...
متن کاملسهم برهمکنش‌های CSB در اختلاف انرژی بستگی هسته‌های آینه‌ای
Nolen-Schiffer Anomaly in mirror nuclei due to the NN interactions with isospin mixing between T=0 and T=1 mesons of the same spin and parity are investigated. With the computation of coulomb energy along with the charge symmetry breaking (CSB) effects provide a reasonably accurate description of binding energy differences between 39ca- 39k- , 41cs- 41ca mirror nuclei.
متن کاملar X iv : h ep - p h / 04 06 26 3 v 1 2 3 Ju
The Standard Model constraints on α which can be derived from the B → ππ decays are revis-ited in some depth. As experimental inputs, the B 0 → π + π − , B + → π + π 0 decays complemented by the B 0 → π 0 π 0 decays, the CP parameters S ππ and C ππ , and/or the value of α as determined by the global CKM fit are used. The constraints discussed here are model independent in the sense that they re...
متن کاملIsospin Violation in B! Decays
An isospin analysis of B ! decays yields sin 2 , where is the usual CKM angle arg[ VtdV tb=(VudV ub)] without hadronic uncertainty if isospin is a perfect symmetry. Yet isospin symmetry is broken not only by electroweak e ects but also by the u and d quark mass di erence | the latter drives 0 ; 0 mixing and converts the isospin-perfect triangle relation between the B ! amplitudes to a quadrilat...
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 2007