CINECA IRIS Institutional Research Information System

We investigate identical pion HBT intensity interferometry in central Au + Au collisions at 1.23A GeV. High-statistics π−π− and π+π+ data are measured with HADES at SIS18/GSI. The radius parameters, derived from the correlation function depending on relative momenta in the longitudinally comoving system and parametrized as three-dimensional Gaussian distribution, are studied as function of transverse momentum. A substantial charge-sign difference of the source radii is found, particularly pronounced at low transverse momentum. The extracted source parameters agree well with a smooth extrapolation of the center-of-mass energy dependence established at higher energies, extending the corresponding excitation functions down towards a very low energy.

Identical pion intensity interferometry in central Au + Au collisions at 1.23A GeV

Adamczewski-Musch J.;Arnold O.;Behnke C.;Belounnas A.;Belyaev A.;Berger-Chen J. C.;Biernat J.;Blanco A.;Blume C.;Bohmer M.;Bordalo P.;Chernenko S.;Chlad L.;Deveaux C.;Dreyer J.;Dybczak A.;Epple E.;Fabbietti L.;Fateev O.;Filip P.;Fonte P.;Franco C.;Friese J.;Frohlich I.;Galatyuk T.;Garzon J. A.;Gernhauser R.;Golubeva M.;Greifenhagen R.;Guber F.;Gumberidze M.;Harabasz S.;Heinz T.;Hennino T.;Hlavac S.;Hohne C.;Holzmann R.;Ierusalimov A.;Ivashkin A.;Kampfer B.;Karavicheva T.;Kardan B.;Koenig I.;Koenig W.;Kolb B. W.;Korcyl G.;Kornakov G.;Kotte R.;Kugler A.;Kunz T.;Kurepin A.;Kurilkin A.;Kurilkin P.;Ladygin V.;Lalik R.;Lapidus K.;Lebedev A.;Lopes L.;Lorenz M.;Mahmoud T.;Maier L.;Mangiarotti A.;Markert J.;Matulewicz T.;Maurus S.;Metag V.;Michel J.;Mihaylov D. M.;Morozov S.;Muntz C.;Munzer R.;Naumann L.;Nowakowski K.;Palka M.;Parpottas Y.;Pechenov V.;Pechenova O.;Petukhov O.;Piasecki K.;Pietraszko J.;Przygoda W.;Ramos S.;Ramstein B.;Reshetin A.;Rodriguez-Ramos P.;Rosier P.;Rost A.;Sadovsky A.;Salabura P.;Scheib T.;Schuldes H.;Schwab E.;Scozzi F.;Seck F.;Sellheim P.;Selyuzhenkov I.;Siebenson J.;Silva L.;Sobolev Y. G.;Spataro S.;Spies S.;Strobele H.;Stroth J.;Strzempek P.;Sturm C.;Svoboda O.;Szala M.;Tlusty P.;Traxler M.;Tsertos H.;Usenko E.;Wagner V.;Wendisch C.;Wiebusch M. G.;Wirth J.;Wojcik D.;Zanevsky Y.;Zumbruch P.

2019-01-01

Abstract

We investigate identical pion HBT intensity interferometry in central Au + Au collisions at 1.23A GeV. High-statistics π−π− and π+π+ data are measured with HADES at SIS18/GSI. The radius parameters, derived from the correlation function depending on relative momenta in the longitudinally comoving system and parametrized as three-dimensional Gaussian distribution, are studied as function of transverse momentum. A substantial charge-sign difference of the source radii is found, particularly pronounced at low transverse momentum. The extracted source parameters agree well with a smooth extrapolation of the center-of-mass energy dependence established at higher energies, extending the corresponding excitation functions down towards a very low energy.

Scheda breve

Scheda completa

Scheda completa (DC)

	Anno
	
			2019
		
	Titolo rivista
	
			PHYSICS LETTERS. SECTION B
		
	N. Volume
	
			795
		
	Pagine (da)
	
			446
		
	Pagine (a)
	
			451
		
	DOI
	
			https://dx.doi.org/10.1016/j.physletb.2019.06.047
		
	URL del prodotto (archivi open access, fulltext su sito editore, etc.)
	
			https://www.sciencedirect.com/science/article/pii/S0370269319304307?via=ihub
		
	Tutti gli autori
	
			Adamczewski-Musch J.; Arnold O.; Behnke C.; Belounnas A.; Belyaev A.; Berger-Chen J.C.; Biernat J.; Blanco A.; Blume C.; Bohmer M.; Bordalo P.; Chernenko S.; Chlad L.; Deveaux C.; Dreyer J.; Dybczak A.; Epple E.; Fabbietti L.; Fateev O.; Filip P.; Fonte P.; Franco C.; Friese J.; Frohlich I.; Galatyuk T.; Garzon J.A.; Gernhauser R.; Golubeva M.; Greifenhagen R.; Guber F.; Gumberidze M.; Harabasz S.; Heinz T.; Hennino T.; Hlavac S.; Hohne C.; Holzmann R.; Ierusalimov A.; Ivashkin A.; Kampfer B.; Karavicheva T.; Kardan B.; Koenig I.; Koenig W.; Kolb B.W.; Korcyl G.; Kornakov G.; Kotte R.; Kugler A.; Kunz T.; Kurepin A.; Kurilkin A.; Kurilkin P.; Ladygin V.; Lalik R.; Lapidus K.; Lebedev A.; Lopes L.; Lorenz M.; Mahmoud T.; Maier L.; Mangiarotti A.; Markert J.; Matulewicz T.; Maurus S.; Metag V.; Michel J.; Mihaylov D.M.; Morozov S.; Muntz C.; Munzer R.; Naumann L.; Nowakowski K.; Palka M.; Parpottas Y.; Pechenov V.; Pechenova O.; Petukhov O.; Piasecki K.; Pietraszko J.; Przygoda W.; Ramos S.; Ramstein B.; Reshetin A.; Rodriguez-Ramos P.; Rosier P.; Rost A.; Sadovsky A.; Salabura P.; Scheib T.; Schuldes H.; Schwab E.; Scozzi F.; Seck F.; Sellheim P.; Selyuzhenkov I.; Siebenson J.; Silva L.; Sobolev Y.G.; Spataro S.; Spies S.; Strobele H.; Stroth J.; Strzempek P.; Sturm C.; Svoboda O.; Szala M.; Tlusty P.; Traxler M.; Tsertos H.; Usenko E.; Wagner V.; Wendisch C.; Wiebusch M.G.; Wirth J.; Wojcik D.; Zanevsky Y.; Zumbruch P.
		
	Appare nelle tipologie:
	
			03A-Articolo su Rivista

File in questo prodotto:

File	Dimensione	Formato
1-s2.0-S0370269319304307-main.pdf Accesso aperto Descrizione: Articolo originale Tipo di file: PDF EDITORIALE Dimensione 492.29 kB Formato Adobe PDF Visualizza/Apri	492.29 kB	Adobe PDF	Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1804566

Citazioni

ND

13

14

social impact