TY - JOUR
T1 - Upper bound on tensor interaction in the decay π-→e-νγ
AU - Voloshin, M. B.
N1 - Funding Information:
I am thankfult o fan Kogan for bringingt o my at-tentiont he discussion\[ 1 ,2,4\ ] of the possiblete nsor interaction( 3 ). This work is supporteidn part by the DOE grantD E-AC02-83ER40105.
PY - 1992/6/4
Y1 - 1992/6/4
N2 - It is pointed out that a tensor four fermion interaction (uRσμνdL) (ermRσμννL) produces through radiative corrections an interaction of the structure (uRdL) (eRνL, which is stronly limited by the decay π-→e-ν. The latter limit translates then into an upper bound of the strength of the tensor interaction which is at least two orders of magnitude lower than the value claimed by a recent measurement of the decay π-→eνγ. Some aspects of a possible tensor interaction related to this bound are also discussed.
AB - It is pointed out that a tensor four fermion interaction (uRσμνdL) (ermRσμννL) produces through radiative corrections an interaction of the structure (uRdL) (eRνL, which is stronly limited by the decay π-→e-ν. The latter limit translates then into an upper bound of the strength of the tensor interaction which is at least two orders of magnitude lower than the value claimed by a recent measurement of the decay π-→eνγ. Some aspects of a possible tensor interaction related to this bound are also discussed.
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U2 - 10.1016/0370-2693(92)91439-G
DO - 10.1016/0370-2693(92)91439-G
M3 - Article
AN - SCOPUS:0002630021
SN - 0370-2693
VL - 283
SP - 120
EP - 122
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 1-2
ER -