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Universal Unitarity Triangle 2016 and the tension between ΔMs,d and εK in CMFV models

Blanke, Monika; Buras, Andrzej J.

Abstract (englisch):
Motivated by the recently improved results from the Fermilab Lattice and MILC Collaborations on the hadronic matrix elements entering (Formula presented.) in (Formula presented.) – (Formula presented.) mixing, we determine the universal unitarity triangle (UUT) in models with constrained minimal flavour violation (CMFV). Of particular importance are the very precise determinations of the ratio (Formula presented.) and of the angle (Formula presented.). They follow in this framework from the experimental values of (Formula presented.) and of the CP-asymmetry (Formula presented.). As in CMFV models the new contributions to meson mixings can be described by a single flavour-universal variable S(v), we next determine the CKM matrix elements (Formula presented.) , (Formula presented.) , (Formula presented.) and (Formula presented.) as functions of S(v) using the experimental value of (Formula presented.) as input. The lower bound on S(v) in these models, derived by us in 2006, implies then upper bounds on these four CKM elements and on the CP-violating parameter (Formula presented.) , which turns out to be significantly below its experim ... mehr


Zugehörige Institution(en) am KIT Institut für Theoretische Teilchenphysik (TTP)
Institut für Kernphysik (IKP)
Publikationstyp Zeitschriftenaufsatz
Jahr 2016
Sprache Englisch
Identifikator DOI: 10.1140/epjc/s10052-016-4044-6
ISSN: 1434-6044, 1434-6052
URN: urn:nbn:de:swb:90-549010
KITopen ID: 1000054901
HGF-Programm 51.01.01; LK 01
Erschienen in The European physical journal / C
Band 76
Heft 4
Seiten Article no. 197
Bemerkung zur Veröffentlichung Gefördert durch SCOAP3
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