Q-MESON SYSTEM IN DIFFRACTIVE PROCESSES

被引：22

作者：

BASDEVANT, JL ^{[1
]}

BERGER, EL ^{[1
]}

机构：

[1] ARGONNE NATL LAB,DIV HIGH ENERGY PHYS,ARGONNE,IL 60439

来源：

PHYSICAL REVIEW D | 1979年 / 19卷 / 01期

关键词：

D O I：

10.1103/PhysRevD.19.246

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a unitary, analytic coupled-channel model for diffractive production of the Q-meson system in Kp→Qp, with Q→K*π and Q→ρK. Our model includes well-defined nonresonant Deck amplitudes in states of t-channel helicities both one and zero. We obtain excellent fits to the high-statistics SLAC data at 13 GeV/c. We confirm the existence of two resonances, Q1 and Q2, with parameters M1=1.28±0.02 GeV, 70<Γ1tot<140 MeV; M2=1.42±0.06 GeV, Γ2tot=230±50 MeV. The Q1 is coupled mainly to ρK and the Q2 to K*π. © 1979 The American Physical Society.

引用

页码：246 / 259

页数：14

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