Investigating hadronic resonances in pp interactions with HADES

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F15%3A00447570" target="_blank" >RIV/61389005:_____/15:00447570 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1051/epjconf/20159700024" target="_blank" >http://dx.doi.org/10.1051/epjconf/20159700024</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/epjconf/20159700024" target="_blank" >10.1051/epjconf/20159700024</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Investigating hadronic resonances in pp interactions with HADES

Popis výsledku v původním jazyce

The resonance CS were determined from the one-pion channels for Delta(1232) and N(1440) (1.25 GeV) as well as further Delta and N* resonances up to 2 GeV/c(2) for the 3.5 GeV data. The data at 1.25 GeV energy were also analysed within the framework of the partial wave analysis together with the set of several other measurements at lower energies. The obtained solutions provided the evolution of resonance production with the beam energy, showing a sizeable non-resonant contribution but with still dominating contribution of Delta(1232)P-33. In the case of 3.5 GeV data, the study of the ppe(+)e(-) channel gave the insight on the Dalitz decays of the baryon resonances and, in particular, on the electromagnetic transition form-factors in the time-like region. We show that the assumption of a constant electromagnetic transition form-factors leads to underestimation of the yield in the dielectron invariant mass spectrum below the vector mesons pole. On the other hand, a comparison with variou

Název v anglickém jazyce

Investigating hadronic resonances in pp interactions with HADES

Popis výsledku anglicky

The resonance CS were determined from the one-pion channels for Delta(1232) and N(1440) (1.25 GeV) as well as further Delta and N* resonances up to 2 GeV/c(2) for the 3.5 GeV data. The data at 1.25 GeV energy were also analysed within the framework of the partial wave analysis together with the set of several other measurements at lower energies. The obtained solutions provided the evolution of resonance production with the beam energy, showing a sizeable non-resonant contribution but with still dominating contribution of Delta(1232)P-33. In the case of 3.5 GeV data, the study of the ppe(+)e(-) channel gave the insight on the Dalitz decays of the baryon resonances and, in particular, on the electromagnetic transition form-factors in the time-like region. We show that the assumption of a constant electromagnetic transition form-factors leads to underestimation of the yield in the dielectron invariant mass spectrum below the vector mesons pole. On the other hand, a comparison with variou

Druh

D - Stať ve sborníku

CEP obor

BG - Jaderná, atomová a molekulová fyzika, urychlovače

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název statě ve sborníku

EPJ Web of Conferences

ISBN

978-2-7598-1828-0

ISSN

2100-014X

e-ISSN

—

Počet stran výsledku

10

Strana od-do

—

Název nakladatele

E D P Sciences

Místo vydání

Cedex

Místo konání akce

Catania

Datum konání akce

3. 11. 2014

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000358379600024