Interaction of antiprotons with nuclei

Kód výsledku v IS VaVaI

RIV/61389005:_____/16:00458222 - isvavai.cz

Výsledek na webu

http://dx.doi.org/10.1016/j.nuclphysa.2015.10.005

DOI - Digital Object Identifier

10.1016/j.nuclphysa.2015.10.005

Jazyk výsledku

angličtina

Název v původním jazyce

Interaction of antiprotons with nuclei

Popis výsledku v původním jazyce

We performed fully self-consistent calculations of (p) over bar -nuclear bound states using a complex (p) over bar -nucleus potential accounting for (p) over bar -atom data. While the real part of the potential is constructed within the relativistic mean-field (RMF) model, the (p) over bar annihilation in the nuclear medium is described by a phenomenological optical potential. We confirm large polarization effects of the nuclear core caused by the presence of the antiproton. The (p) over bar annihilation is treated dynamically, taking into account explicitly the reduced phase space for annihilation from deeply bound states as well as the compressed nuclear density due to the antiproton. The energy available for the products of (p) over bar annihilation in the nuclear medium is evaluated self-consistently, considering the additional energy shift due to transformation from the (p) over barN system to (p) over bar -nucleus system. Corresponding (p) over bar widths in the medium are significantly suppressed, however, they still remain considerable for the (p) over bar potential consistent with experimental data.

Název v anglickém jazyce

Interaction of antiprotons with nuclei

Popis výsledku anglicky

We performed fully self-consistent calculations of (p) over bar -nuclear bound states using a complex (p) over bar -nucleus potential accounting for (p) over bar -atom data. While the real part of the potential is constructed within the relativistic mean-field (RMF) model, the (p) over bar annihilation in the nuclear medium is described by a phenomenological optical potential. We confirm large polarization effects of the nuclear core caused by the presence of the antiproton. The (p) over bar annihilation is treated dynamically, taking into account explicitly the reduced phase space for annihilation from deeply bound states as well as the compressed nuclear density due to the antiproton. The energy available for the products of (p) over bar annihilation in the nuclear medium is evaluated self-consistently, considering the additional energy shift due to transformation from the (p) over barN system to (p) over bar -nucleus system. Corresponding (p) over bar widths in the medium are significantly suppressed, however, they still remain considerable for the (p) over bar potential consistent with experimental data.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BE - Teoretická fyzika

OECD FORD obor

—

Projekt

GA15-04301S: Interakce hadronů s nukleony a jádry

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Nuclear Physics. A

ISSN

0375-9474

e-ISSN

—

Svazek periodika

945

Číslo periodika v rámci svazku

JAN

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

19

Strana od-do

197-215

Kód UT WoS článku

000370462300015

EID výsledku v databázi Scopus

2-s2.0-84946426774