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arXiv 1005.0187nucl-th
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质子核反应中的$ρN$共振动力学

$ρN$ resonance dynamics in the proton nucleus reaction

Swapan Das

摘要:

ρ介子与核子的强耦合产生$s$和$p$波ρ介子核子$(ρN)$共振。在原子核中,$ρN$共振空穴极化产生ρ介子的光学势或自能。ρ介子的散射提供了有关核中$ρN$共振动力学的有价值的信息。为了研究这个问题,我们利用这个势计算了质子核反应中相干产生的$ρ$介子的质量分布谱。给出了由$s$和$p$波$ρN$共振引起的横截面。由于这些共振的截面的相干和非相干的贡献进行了比较。此外,还给出了非相对论和相对论$ρ$介子自能的计算结果。

英文摘要:

The strong coupling of rho meson to the nucleon produces $s$ and $p$ wave rho meson nucleon $(ρN)$ resonances. In a nucleus, the $ρN$ resonance-hole polarization generates the optical potential or self-energy for the rho meson. The scattering of rho meson due to this potential provides valuable informations about the $ρN$ resonance dynamics in a nucleus. To investigate it, we use this potential to calculate the mass distribution spectrum for the $ρ$ meson produced coherently in the proton nucleus reaction. The cross sections arising due to $s$ and $p$ wave $ρN$ resonances have been presented. The coherent and incoherent contributions to the cross sections due to these resonances are compared. In addition, the calculated results due to non-relativistic and relativistic $ρ$ meson self-energy are illustrated.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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