0000000001188758
AUTHOR
Ignazio Scimemi
The standard model prediction for epsilon'/epsilon
34 páginas, 1 figura, 1 tabla, 7 tablas adicionales.-- arXiv:hep-ph/0105011v1
Electromagnetic decays of heavy baryons
9 páginas, 3 figuras, 7 tablas.-- PACS number(s): 12.39.Fe, 12.39.Hg, 13.40.Hq, 14.20.Lq
Heavy Baryons and electromagnetic decays
In this talk I review the theory of electromagnetic decays of the ground state baryon multiplets with oneheavy quark, calculated using Heavy Hadron Chiral Perturbation Theory. The M1 and E2 amplitudes for (S^{*}-> S gamma), (S^{*} -> T gamma) and (S -> T gamma)are separately analyzed. All M1 transitions are calculated up to O(1/��_��^2). The E2 amplitudes contribute at the same order for (S^{*}-> S gamma), while for (S^{*} -> T gamma) they first appear at O(1/(m_Q ��_��^2))and for (S -> T gamma) are completely negligible. Once the loop contributions is considered, relations among different decay amplitudes are derived. Furthermore, one can obtain an absolute prediction for…
Magnetic moments of heavy baryons
6 páginas, 2 figuras, 4 tablas.-- PACS number(s): 12.39.Fe, 12.39.Hg, 14.20.Lq, 14.20.Mr
Charged Kaon CP Violating Asymmetries vs
We present the next-to-leading order full results in Chiral Pertubation Theory for the charged Kaon K → 3 π slope g CP violating asymmetries. We discuss the constraints that a measurement of these asymmetries would impose on the Standard Model results of e K ′ and search for new physics. We also study the kind of information that such measurement can provide on Im G 8 , Im ( e 2 G E ) and higher order weak couplings.
The role of final state interactions in epsilon'/epsilon
3 páginas.-- Comunicación presentada al DPF 2000: The Meeting Of The Division Of Particles And Fields Of The American Physical Society celbrado en Agosto del 2000 en Ohio (USA).-- arXiv:hep-ph/0010229v1