https://doi.org/10.1140/epja/i2007-10448-8
Regular Article - Theoretical Physics
pp → ppπnear threshold in pionless effective theory
Department of Physics, Sungkyunkwan University, 440-746, Suwon, Korea
* e-mail: sando@color.skku.ac.kr
Received:
25
July
2007
Accepted:
26
July
2007
Published online:
28
August
2007
The total cross-section of the pp → ppπ0 reaction near threshold is calculated in pionless effective field theory with a di-baryon and external pions. The amplitudes for a leading one-body and subleading contact neutral pion production vertex are obtained including the initial- and final-state interactions. After estimating a low-energy constant in the contact vertex, we compare our results for the total cross-section with the experimental data.
PACS: 13.60.Le Meson production – / 25.10.+s Nuclear reactions involving few-nucleon systems –
© Società Italiana di Fisica and Springer-Verlag, 2007