# Three-nucleon force effects in nucleon-deuteron scattering at backward angles

### Submission summary

 As Contributors: Souichi Ishikawa Preprint link: scipost_201910_00010v1 Date accepted: 2019-11-29 Date submitted: 2019-10-14 02:00 Submitted by: Ishikawa, Souichi Submitted to: SciPost Physics Proceedings Proceedings issue: 24th European Few Body Conference (University of Surrey, U.K.) Academic field: Physics Specialties: Nuclear Physics - Experiment Nuclear Physics - Theory Approach: Theoretical

### Abstract

Elastic and breakup cross sections in nucleon-deuteron scattering at intermediate energies are calculated using a realistic two-nucleon potential and three-nucleon potentials based on the exchange of two pions among three nucleons. Attractive effects of the pion-exchange at medium range region in the three-nucleon potential are recovered by using a shorter range cutoff. It is shown that these effects increase the cross sections at backward angles, which tends to reduce discrepancies between theoretical calculations and experimental data.

Published as SciPost Phys. Proc. 3, 054 (2020)

### Submission & Refereeing History

Submission scipost_201910_00010v1 on 14 October 2019

## Reports on this Submission

### Anonymous Report 1 on 2019-10-31 (Invited Report)

• Cite as: Anonymous, Report on arXiv:scipost_201910_00010v1, delivered 2019-10-31, doi: 10.21468/SciPost.Report.1276

### Weaknesses

I do not see any.

### Report

The manuscript present recent results on nucleon-deuteron scattering with modern interactions, including 3-body forces. The author shows that 3-body effects increase the cross sections at backward angles, which improves the agreement between theory and experiment.
The text is clearly written and concise.
A minor typography problem: in eq.(1) I do not understand the symbol in front of tau_3 and of sigma_3.
After the authors have adapted the text accordingly, I recommend the publication of the manuscript.

### Requested changes

The manuscript can be pu

• validity: -
• significance: -
• originality: -
• clarity: -
• formatting: -
• grammar: -

### Author:  Souichi Ishikawa  on 2019-11-09  [id 642]

(in reply to Report 1 on 2019-10-31)
Category:
correction

For referee's comment:
>A minor typography problem: in eq.(1) I do not understand the symbol in front of tau_3 and of sigma_3.

I used a TeX command $\imath$ for the imaginary unit at places the referee pointed out.
The $\imath$ command is used at two places in Eq. (2) as well. (Thus totally four times in the present version of the manuscript.)
I admit that this may not be standard format, and can resubmit a revised version.

Thank you,
Souichi

### Paul Stevenson  on 2019-11-10  [id 643]

(in reply to Souichi Ishikawa on 2019-11-09 [id 642])

Dear Souichi,
Since the referee found it non-standard, I suggest changing it to a regular $i$.
Paul Stevenson (Proceedings Guest Editor)