Density dependent relativistic hadron theory for hadron matter with inclusion of pentaquark $Θ^+$
| dc.creator | Lee, Xi-Guo | |
| dc.creator | Gao, Yuan | |
| dc.date | 2005-02-02 | |
| dc.date | 2005-02-09 | |
| dc.date.accessioned | 2026-07-07T05:40:54Z | |
| dc.date.available | 2026-07-07T05:40:54Z | |
| dc.description | The density dependent relativistic hadron field theory(DDRH) is extended to inclusions of pentaquark $Θ^+$. We investigate In-medium properties of $Θ^+$ and nucleons. As well as the neutron and proton,the effective $Θ^+$ mass decreases as the baryon density increases,and remains larger than nucleons'. The effective mass of $Θ^+$ is calculated,$M^*_{Θ^+}\simeq0.71M_{Θ^+}$ at normal nuclear density with the fraction of $Θ^+$ 0.2. The effective masses of all baryon increase with the increasing fraction of $Θ^+$. The binding energy is also studied. We find the binding energy is much larger than it in nuclear matter without $Θ^+$,and then discuss the stability of the system with conclusions of pentaquark $Θ^+$. It is shown that the system becomes bounder added small fraction of $Θ^+$. Finally we discuss the condition when the system is the most stable and calculate the minimum of binding energy and the fractions of all baryons as functions of baryon density. | |
| dc.description | 11 pages, 6 figures | |
| dc.identifier | https://arxiv.org/abs/nucl-th/0502010 | |
| dc.identifier | http://arxiv.org/abs/nucl-th/0502010 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/82399 | |
| dc.subject | Nuclear Theory | |
| dc.title | Density dependent relativistic hadron theory for hadron matter with inclusion of pentaquark $Θ^+$ | |
| dc.type | text |