I=1/2 and 3/2 K pi scattering in a qqq-bar q-bar potential model

Journal Article · Tue Jan 01 00:00:00 EST 1991 · Physical Review D

OSTI ID:803366

Isgur, Nathan; Weinstein, J

We present the results of a study of I=1/2 and 3/2 K pi scattering based on our earlier analysis of the I=0, 1, and 2 pseudoscalar-pseudoscalar systems. While the latter systems formed KK-bar molecules in both I=0 and 1, here, with the same parameters, we find that neither K pi , K eta , nor K eta ' form bound states. Both I=1/2 and 3/2 phase-shift predictions are found to agree with experimental data. A shift in the mass and width of the ''bare'' qq-bar state K*{sub 0}is induced by the coupled-channel interactions, which also provide a physical source for the low-energy ''background'' phase shift normally introduced in analyses of K pi data.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Energy Research (ER) (US)
• DOE Contract Number: AC05-84ER40150
• OSTI ID: 803366
• Report Number(s): CEBAF-TH-91-29; DOE/ER/40150-2297; TRN: US200302%%130
• Journal Information: Physical Review D, Vol. 43, Issue 1; Other Information: Phys. Rev. D 43, 95 (1991); PBD: 1 Jan 1991
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOUND STATE
PHASE SHIFT
SCATTERING
PSEUDOSCALAR MESONS