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Inclusive semileptonic Λb decays in the Standard Model and beyond
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Journal Article
Inclusive semileptonic Λb decays in the Standard Model and beyond
2020
Overview
A
bstract
Inclusive semileptonic decays of beauty baryons are studied using the heavy quark expansion to
O
1
/
m
b
3
, at leading order in
α
s
. The case of a polarized decaying baryon is examined, with reference to Λ
b
. An extension of the Standard Model effective Hamiltonian inducing
b
→
U
ℓ
ν
¯
ℓ
transitions (
U
=
u, c
and
ℓ
=
e, μ, τ
) is considered, which comprises the full set of D=6 semileptonic operators with left-handed neutrinos. The effects of the new operators in several observables are described.
Publisher
Springer Berlin Heidelberg,Springer Nature B.V,SpringerOpen
Subject
