TY - JOUR
T1 - New effective treatment of the light-front nonvalence contribution in timelike exclusive processes
AU - Ji, Chueng Ryong
AU - Choi, Ho Meoyng
PY - 2001/8/2
Y1 - 2001/8/2
N2 - We discuss a necessary nonvalence contribution in timelike exclusive processes. Following a Schwinger-Dyson type of approach, we relate the nonvalence contribution to an ordinary light-front wave function that has been extensively tested in the spacelike exclusive processes. A complicate four-body energy denominator is exactly cancelled in summing the light-front time-ordered amplitudes. Applying our method to Kℓ3 and D0 → K-ℓ+νι where a rather substantial nonvalence contribution is expected, we find not only an improvement in comparing with the experimental data but also a covariance (i.e., frame-independence) of existing light-front constituent quark model.
AB - We discuss a necessary nonvalence contribution in timelike exclusive processes. Following a Schwinger-Dyson type of approach, we relate the nonvalence contribution to an ordinary light-front wave function that has been extensively tested in the spacelike exclusive processes. A complicate four-body energy denominator is exactly cancelled in summing the light-front time-ordered amplitudes. Applying our method to Kℓ3 and D0 → K-ℓ+νι where a rather substantial nonvalence contribution is expected, we find not only an improvement in comparing with the experimental data but also a covariance (i.e., frame-independence) of existing light-front constituent quark model.
UR - http://www.scopus.com/inward/record.url?scp=0035797634&partnerID=8YFLogxK
U2 - 10.1016/S0370-2693(01)00481-6
DO - 10.1016/S0370-2693(01)00481-6
M3 - Article
AN - SCOPUS:0035797634
SN - 0370-2693
VL - 513
SP - 330
EP - 336
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 - 3-4
ER -