TY  - JOUR
AU  - Xiao, C. W.
AU  - Aceti, F.
AU  - Bayar, M.
PY  - 2013
DA  - 2013//
TI  - The small K pi component in the K* wave functions
T2  - Eur. Phys. J. A
JO  - European Physical Journal A
SP  - 22
EP  - 5pp
VL  - 49
IS  - 2
PB  - Springer
AB  - We use a recently developed formalism which generalizes Weinberg's compositeness condition to partial waves higher than s-wave in order to determine the probability of having a K pi component in the K* wave function. A fit is made to the K pi phase shifts in p-wave, from where the coupling of K* to K pi and the K pi loop function are determined. These ingredients allow us to determine that the K* is a genuine state, different from a K pi component, in a proportion of about 80%.
SN  - 1434-6001
UR  - http://arxiv.org/abs/arXiv:1210.7176
UR  - https://doi.org/10.1140/epja/i2013-13022-y
DO  - 10.1140/epja/i2013-13022-y
LA  - English
N1  - WOS:000315601600006
ID  - Xiao_etal2013
ER  -