Exotic baryons from a heavy meson and a nucleon: Negative parity states

被引：71

作者：

Yamaguchi, Yasuhiro ^{[1
]}

Ohkoda, Shunsuke ^{[1
]}

Yasui, Shigehiro ^{[2
]}

Hosaka, Atsushi ^{[1
]}

机构：

[1] Osaka Univ, RCNP, Osaka 5670047, Japan

[2] High Energy Accelerator Res Org, KEK Theory Ctr, Inst Particle & Nucl Studies, Oho, Ibaraki 3050801, Japan

来源：

PHYSICAL REVIEW D | 2011年 / 84卷 / 01期

关键词：

QUARK SYMMETRY; CHIRAL DYNAMICS; COUPLED-CHANNEL; MODEL; DEUTERON; EXCHANGE; HADRONS; ANALOGY; CHARM;

D O I：

10.1103/PhysRevD.84.014032

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study heavy baryons with an exotic flavor quantum number formed by a heavy meson and a nucleon ((D) over barN and BN) through a long range one pion exchange interaction. The bound state found previously in the (I, J(P)) = (0, 1/2(-)) channel survives when short range interaction is included. In addition, we find a resonant state with (I, J(P)) = (0, 3/2(-)) as a Feshbach resonance predominated by a heavy vector meson and a nucleon ((D) over bar *N and (B) over bar *N). We find that these exotic states exist for the charm and heavier flavor region.

引用

页数：12

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