Comparative analysis of ωp, φp, and J/ψp scattering lengths from A2, CLAS, and GlueX threshold measurements

被引：30

作者：

Strakovsky, Igor I. ^{[1
]}

Pentchev, Lubomir ^{[2
]}

Titov, Alexander, I ^{[3
]}

机构：

[1] George Washington Univ, Inst Nucl Studies, Dept Phys, Washington, DC 20052 USA

[2] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA

[3] JINR, Bogoliubov Lab Theoret Phys, Dubna 141980, Russia

来源：

PHYSICAL REVIEW C | 2020年 / 101卷 / 04期

关键词：

RESONANCE;

D O I：

10.1103/PhysRevC.101.045201

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The high-accuracy phi-meson photoproduction data from the CLAS experiment in Hall B of Jefferson Laboratory allow us to determine the near-threshold total cross section of the gamma p -> phi p reaction and use it for evaluating the phi p scattering length alpha(phi p). These data result in an absolute value of vertical bar alpha(phi p vertical bar) = (0.063 +/- 0.010) fm, which is smaller than the typical hadron size. A comparative analysis of alpha(phi p) with the previously determined scattering lengths for omega p and J/psi p from the A2 and GlueX experiments is performed.

引用

页数：4

共 24 条

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