Elastic Antiproton-Nucleus Scattering from Chiral Forces

Vorabbi, Matteo; Gennari, Michael; Finelli, Paolo; Giusti, Carlotta; Navrátil, Petr

doi:10.1103/PhysRevLett.124.162501

Title: Elastic Antiproton-Nucleus Scattering from Chiral Forces

Journal Article · Mon Apr 20 00:00:00 EDT 2020 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.124.162501· OSTI ID:1616438

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Brookhaven National Lab. (BNL), Upton, NY (United States); TRIUMF, Vancouver, BC (Canada)
TRIUMF, Vancouver, BC (Canada); Univ. of Victoria, BC (Canada)
Univ. degli Studi di Bologna and INFN, Bologna (Italy)
Univ. degli Studi di Pavia and INFN, Pavia (Italy)
TRIUMF, Vancouver, BC (Canada)

Elastic scattering of antiprotons off ${}_{4}{He}$ , ${}_{12}C$ , and ${}_{16, 18}O$ is described for the first time with a consistent microscopic approach based on the calculation of an optical potential (OP) describing the antiproton-target interaction. The OP is derived using the recent antiproton-nucleon ( $\bar{p} N$ ) chiral interaction to calculate the $\bar{p} N$ $t$ matrix, while the target densities are computed with the ab initio no-core shell model using chiral interactions as well. Here, our results are in good agreement with the existing experimental data and the results computed at different chiral orders of the $\bar{p} N$ interaction display a well-defined convergence pattern.

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Research Organization:: Brookhaven National Laboratory (BNL), Upton, NY (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP); Natural Sciences and Engineering Research Council of Canada (NSERC); National Research Council of Canada

Grant/Contract Number:: SC0012704; AC02-98CH10886; SAPIN-2016-00033

OSTI ID:: 1616438

Alternate ID(s):: OSTI ID: 1615430

Report Number(s):: BNL-213862-2020-JAAM; PRLTAO; TRN: US2106449

Journal Information:: Physical Review Letters, Vol. 124, Issue 16; ISSN 0031-9007

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 5 works

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