The N N -> NN pi+ Reaction near Threshold in a Chiral Power Counting Approach

Details The N N -> NN pi+ Reaction near Threshold in a Chiral Power Counting Approach The N N -> NN pi+ Reaction near Threshold in a Chiral Power Counting Approach

1999-04-12

arxiv.org/abs/nucl-th/9904031v1

Phys.Rev. C61 (2000) 034613

Physics

Nuclear Physics

Nuclear Theory

31 pages, 17 figures

Scientific paper

10.1103/PhysRevC.61.034613

Power-counting arguments are used to organize the interactions contributing to the N N -> d pi, p n pi reactions near threshold. We estimate the contributions from the three formally leading mechanisms: the Weinberg-Tomozawa (WT) term, the impulse term, and the $\Delta$-excitation mechanism. Sub-leading but potentially large mechanisms, including $S$-wave pion-rescattering, the Galilean correction to the WT term, and short-ranged contributions are also examined. The WT term is shown to be numerically the largest, and the other contributions are found to approximately cancel. Similarly to the reaction p p -> p p pi0, the computed cross sections are considerably smaller than the data. We discuss possible origins of this discrepancy.

Affiliated with

Also associated with

No associations

Rating

The N N -> NN pi+ Reaction near Threshold in a Chiral Power Counting Approach does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The N N -> NN pi+ Reaction near Threshold in a Chiral Power Counting Approach, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The N N -> NN pi+ Reaction near Threshold in a Chiral Power Counting Approach will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-122989