scholarly journals Long distance effects in semi-inclusive B decays

2007 ◽  
Vol 163 ◽  
pp. 77-82
Author(s):  
Ugo Aglietti ◽  
Giulia Ricciardi
2019 ◽  
Vol 2019 (10) ◽  
Author(s):  
Tobias Huber ◽  
Tobias Hurth ◽  
Jack Jenkins ◽  
Enrico Lunghi ◽  
Qin Qin ◽  
...  

1990 ◽  
Vol 42 (1) ◽  
pp. 118-125 ◽  
Author(s):  
B. Machet ◽  
N. F. Nasrallah ◽  
K. Schilcher

2018 ◽  
Vol 33 (32) ◽  
pp. 1850194
Author(s):  
Aritra Biswas ◽  
Sanjoy Mandal ◽  
Nita Sinha

We show that for a heavy vector-like quark model with a down type isosinglet, branching ratio for [Formula: see text] decay is enhanced by more than [Formula: see text] as compared to that in the Standard model when QCD corrections to next-to-leading order are incorporated. In a left–right symmetric model (LRSM) along with a heavy vector-like fermion, enhancement of this order can be achieved at the bare (QCD uncorrected) level itself. We propose that a measurement of the photon polarization could be used to signal the presence of such new physics in spite of the large long distance effects. We find that there is a large region within the allowed parameter space of the model with a vector-like quark and an additional left–right symmetry, where, the photon polarization can be dominantly right-handed.


2000 ◽  
Vol 486 (1-2) ◽  
pp. 86-91 ◽  
Author(s):  
Adam K. Leibovich ◽  
Ian Low ◽  
I.Z. Rothstein

2005 ◽  
Vol 113 (1) ◽  
pp. 183-198 ◽  
Author(s):  
H. Kawamura ◽  
J. Kodaira ◽  
K. Tanaka

1995 ◽  
Vol 438 (1-2) ◽  
pp. 17-53 ◽  
Author(s):  
Roger Decker ◽  
Markus Finkemeier

1997 ◽  
Vol 393 (1-2) ◽  
pp. 132-142 ◽  
Author(s):  
M. Beneke ◽  
G. Buchalla ◽  
I. Dunietz

2012 ◽  
Vol 27 (22) ◽  
pp. 1250125 ◽  
Author(s):  
GULSHEEN AHUJA ◽  
ROHIT VERMA ◽  
PRIYANKA FAKAY ◽  
P. S. GILL ◽  
MANMOHAN GUPTA

Recently several developments have taken place in the lattice QCD calculations of hadronic factors in the case of [Formula: see text] and the [Formula: see text] mixings along with contribution of the long distance effects in the [Formula: see text] system. These have led some authors (Refs. 12 and 13) to point towards the possibility of New Physics (NP) in these systems to the tune of 20% or so. However, the present analysis, based on essentially NP free inputs and incorporating constraints of unitarity, shows that in case the NP effects are there in the parameters associated with these systems, e.g. sin 2β, Vtd, ϵK, etc., these seem to be only at a few percent level.


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