Exclusive f(1)(1285) meson production for energy ranges available at the GSI-FAIR with HADES and PANDA

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F21%3A00553344" target="_blank" >RIV/61389005:_____/21:00553344 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1103/PhysRevD.104.034031" target="_blank" >https://doi.org/10.1103/PhysRevD.104.034031</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevD.104.034031" target="_blank" >10.1103/PhysRevD.104.034031</a>

Result language

angličtina

Original language name

Exclusive f(1)(1285) meson production for energy ranges available at the GSI-FAIR with HADES and PANDA

Original language description

We evaluate the cross section for the pp -> ppf(1)(1285) and pp -> ppf(1)(1285) reactions at near threshold energies relevant for the HADES and PANDA experiments at GSI-FAIR. We assume that at energies close to the threshold the omega omega -> f(1)(1285) and rho(0)rho(0) -> f(1)(1285) fusion processes are the dominant production mechanisms. The vertex for the VV -> f(1) coupling is derived from an effective coupling Lagrangian. The g(rho rho f1) coupling constant is extracted from the decay rate of f(1)(1285) -> rho(0)gamma using the vector-meson-dominance ansatz. We assume g(omega omega f1) = g(rho rho f1), equality of these two coupling constants, based on arguments from the naive quark model and vector-meson dominance. The amplitude for the VV -> f(1) fusion, supplemented by phenomenological vertex form factors for the process, is given. The differential cross sections at energies close to the threshold are calculated. In order to determine the parameters of the model the gamma p -> f(1)(1285)(p) reaction is discussed in addition and results are compared with the CLAS data. The possibility of a measurement by HADES@GSI is presented and discussed. We perform a Monte Carlo feasibility simulation of the pp -> ppf(1) reaction for root s = 3.46 GeV with the f(1) decaying into the pi(+)pi(-) pi(+)pi(-) (not shown explicitly) and pi(+)pi(-)eta(->pi(+)pi(-) pi(0)) final states using the PLUTO event generator. The latter f(1) decay is especially promising as a peak in the pi(+)pi(-)eta mass distribution should be observable by HADES.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10304 - Nuclear physics

Project

—

Continuities

—

Publication year

2021

Confidentiality

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

Name of the periodical

Physical Review D

ISSN

2470-0010

e-ISSN

2470-0029

Volume of the periodical

104

Issue of the periodical within the volume

3

Country of publishing house

US - UNITED STATES

Number of pages

26

Pages from-to

034031

UT code for WoS article

000692077700003

EID of the result in the Scopus database

2-s2.0-85114184647