Resonance Production and Decay in Proton and Pion Induced Collisions with HADES

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F16%3A00539941" target="_blank" >RIV/61389005:_____/16:00539941 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.7566/JPSCP.10.010013" target="_blank" >http://dx.doi.org/10.7566/JPSCP.10.010013</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.7566/JPSCP.10.010013" target="_blank" >10.7566/JPSCP.10.010013</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Resonance Production and Decay in Proton and Pion Induced Collisions with HADES

Popis výsledku v původním jazyce

Resonance production and decay in proton-proton collisions at kinetic beam energies of 1.25 GeV and 3.5 GeV as well as r-p reactions at four different pion beam momenta (0.656, 0.69, 0.748 and 0,8 GeV/c) are investigated,lxclusive channels with one pion in the final state (ipm and pp71-1) in the pp collisions were put to extended studies based on various observables in the framework of a one pion exchange model and with solutions obtained within the framework of a partial wave analysis (PWA) of the Bonn-Gatchina group. In the case of the 3.5 GeV data, the study of the ppe+ e- channel gave insight on the dielectron production from 1f'' and A in the second and third resonance regions. We show that the measured dielectron invariant mass distribution cannot be explained by a point like resonance-y* coupling. Comparison with various transport models unravels the ambiguities of the descriptions and the important role of the intermediate p production. To tackle this problem a systematic investigation focused on the role of N(1520) production and decay in pion induced reactions on polyethylene and carbon targets,lirst results on exclusive channels with one pion (7-p), two pions (n7-'7-) and dileptons (ne(+)e(-)) in the final state are presented.

Název v anglickém jazyce

Resonance Production and Decay in Proton and Pion Induced Collisions with HADES

Popis výsledku anglicky

Resonance production and decay in proton-proton collisions at kinetic beam energies of 1.25 GeV and 3.5 GeV as well as r-p reactions at four different pion beam momenta (0.656, 0.69, 0.748 and 0,8 GeV/c) are investigated,lxclusive channels with one pion in the final state (ipm and pp71-1) in the pp collisions were put to extended studies based on various observables in the framework of a one pion exchange model and with solutions obtained within the framework of a partial wave analysis (PWA) of the Bonn-Gatchina group. In the case of the 3.5 GeV data, the study of the ppe+ e- channel gave insight on the dielectron production from 1f'' and A in the second and third resonance regions. We show that the measured dielectron invariant mass distribution cannot be explained by a point like resonance-y* coupling. Comparison with various transport models unravels the ambiguities of the descriptions and the important role of the intermediate p production. To tackle this problem a systematic investigation focused on the role of N(1520) production and decay in pion induced reactions on polyethylene and carbon targets,lirst results on exclusive channels with one pion (7-p), two pions (n7-'7-) and dileptons (ne(+)e(-)) in the final state are presented.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

—

Návaznosti

—

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název statě ve sborníku

JPS Conference Proceedings

ISBN

978-4-89027-114-6

ISSN

—

e-ISSN

—

Počet stran výsledku

11

Strana od-do

010013

Název nakladatele

The Physical Society of Japan

Místo vydání

Tokyo

Místo konání akce

Osaka

Datum konání akce

25. 5. 2015

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000466767000013