The 1S0 channel of proton-proton scattering in new chiral effective field theory power counting

被引：0
|
作者：
Behzadmoghaddam, B. [1 ]
Radin, M. [2 ]
Bayegan, S. [1 ]
机构：
[1] Univ Tehran, Dept Phys, POB 14395-547, Tehran, Iran
[2] K N Toosi Univ Technol, Dept Phys, POB 163151618, Tehran, Iran
来源：
SCIENTIFIC REPORTS | 2023年 / 13卷 / 01期
关键词：
NUCLEON-NUCLEON-SCATTERING; SYSTEMS;
D O I：
10.1038/s41598-023-33735-6
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
In this paper, the chiral effective field theory is used to investigate the spin singlet channel S-1(0), of proton-proton (pp) scattering according to the new suggested power counting. For this purpose, the pp zero scattering amplitude is reproduced by inserting one pion exchange at leading order (LO) and the Coulomb interaction between protons at next-to-leading order (NLO). This leads to a systematic improvement up to NLO compared to the result obtained from Nijm93 potential model.
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页数：8
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