Počet záznamů: 1

Photo- and electroproduction of K+ Lambda with a unitarity-restored isobar model

SYSNO ASEP	0488729
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Photo- and electroproduction of K+ Lambda with a unitarity-restored isobar model
Tvůrce(i)	Skoupil, Dalibor (UJF-V)_SAI Bydžovský, Petr (UJF-V)_{RID, ORCID, SAI}
Celkový počet autorů	2
Číslo článku	025202
Zdroj.dok.	Physical Review C. - : American Physical Society - ISSN 2469-9985 Roč. 97, č. 2 (2018)
Poč.str.	13 s.
Forma vydání	Tištěná - P
Jazyk dok.	eng - angličtina
Země vyd.	US - Spojené státy americké
Klíč. slova	kaon photoproduction ; electromagnetic produciton ; K+ Lambda
Vědní obor RIV	BE - Teoretická fyzika
Obor OECD	Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)
CEP	GA15-04301S GA ČR - Grantová agentura ČR
Institucionální podpora	UJF-V - RVO:61389005
UT WOS	000426015600008
EID SCOPUS	85043274537
DOI	10.1103/PhysRevC.97.025202
Anotace	Exploiting the isobar model, kaon photo- and electroproduction on the proton in the resonance region comes under scrutiny. An upgrade of our previous model, comprising higher-spin nucleon and hyperon exchanges in the consistent formalism, was accomplished by implementing energy-dependent widths of nucleon resonances, which leads to a different choice of hadron form factor with much softer values of cutoff parameter for the resonant part. For a reliable description of electroproduction, the necessity of including longitudinal couplings of nucleon resonances to virtual photons was revealed. We present a new model whose free parameters were adjusted to photo- and electroproduction data and which provides a reliable overall description of experimental data in all kinematic regions. The majority of nucleon resonances chosen in this analysis coincide with those selected in our previous analysis and also in the Bayesian analysis with the Regge-plus-resonance model as the states contributing to this process with the highest probability.
Pracoviště	Ústav jaderné fyziky
Kontakt	Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228
Rok sběru	2019

Počet záznamů: 1