ausblenden:
Schlagwörter:
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Zusammenfassung:
We revisit the possibilities of accommodating the experimental
indications of the lepton flavor universality violation in b-hadron
decays in the minimal scenarios in which the Standard Model is extended
by the presence of a single O(1 TeV) leptoquark state. To do so we
combine the most recent low energy flavor physics constraints, including
R-K(*)(exp) and RD(*)exp, and combine them with the bounds on the
leptoquark masses and their couplings to quarks and leptons as inferred
from the direct searches at the LHC and the studies of the large pT
tails of the pp -> ll differential cross section. We find that none of
the scalar leptoquarks of mLQ. 1 o 2 TeV can accommodate the B-anomalies
alone. Only the vector leptoquark, known as U 1, can provide a viable
solution which, in the minimal setup, provides an interesting
prediction, i.e., a lower bound to the lepton flavor violating b. s
mu(+/-)tau(+/-) decay modes, such as B(B -> K mu t) greater than or
similar to 0.7 x 10(-7.)
