Scalar contribution to radiative decays of theηmeson

1977 ◽  
Vol 16 (3) ◽  
pp. 776-785 ◽  
Author(s):  
Gary K. Greenhut ◽  
Gerald W. Intemann

2010 ◽  
Vol 82 (5) ◽  
Author(s):  
Tanja Branz ◽  
Thomas Gutsche ◽  
Valery E. Lyubovitskij
Keyword(s):  


2010 ◽  
Vol 73 (7) ◽  
pp. 1214-1228 ◽  
Author(s):  
R. E. Gerasimov ◽  
V. S. Fadin


1993 ◽  
Vol 1 (4) ◽  
pp. 377-386 ◽  
Author(s):  
Lothar Oberauer ◽  
Caren Hagner ◽  
Georg Raffelt ◽  
Erich Rieger
Keyword(s):  


1996 ◽  
Vol 72 (4) ◽  
pp. 619-626 ◽  
Author(s):  
Markus Finkemeier ◽  
Erwin Mirkes
Keyword(s):  






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.



1999 ◽  
Vol 101 (5) ◽  
pp. 1083-1091 ◽  
Author(s):  
R. Mohanta ◽  
A. K. Giri ◽  
M. P. Khanna ◽  
M. Ishida ◽  
S. Ishida




1987 ◽  
Vol 185 (1-2) ◽  
pp. 145-149 ◽  
Author(s):  
G. Eilam ◽  
B. Margolis ◽  
R.R. Mendel ◽  
A. Soni
Keyword(s):  
D Mesons ◽  


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