6533b7d4fe1ef96bd1263388

RESEARCH PRODUCT

pp and ππ intensity interferometry in collisions of Ar+KCl at 1.76A GeV

Marek PalkaM. WisniowskiB. SailerA. SchmahA. SchmahI. IoriI. IoriC. GilardiP. HuckW. KoenigM. LorenzJehad MousaA. BlancoP. FonteA. IvashkinR. KotteI. KoenigM. HeilmannRoman GernhäuserA. KuglerT. Perez CavalcantiM. JurkovicT. HenninoJ. A. GarzónD. KirschnerS. P. ChernenkoR. TrebaczP. CabanelasK. KanakiPiotr SalaburaL. NaumannL. MaierVolker MetagG. AgakishievA. B. KurepinTetyana GalatyukJ. FrieseT. WojcikA. SadovskyK. TeilabY. C. PachmayerJ. MichelR. BassiniJ. SiebensonE. SchwabA. DybczakP. ZhouYu.v. ZanevskyS. YurevichBurkhard KampferBurkhard KampferD. BelverM. GumberidzeT. HeinzFedor GuberWitold PrzygodaT. ChristA. RustamovD. González-díazJ. S. DíazM. B. GolubevaM. BöhmerA. MangiarottiA. BalandaM. Roy-stephanTatiana KaravichevaH. StröbeleK. LapidusK. LapidusB. MichalskaA. TarantolaV. WagnerAndrey ReshetinLaura FabbiettiB. SpruckM. WeberB. RamsteinY. ParpottasD. MishraM. DestefanisP. TlustyB. W. KolbJ. OtwinowskiS. LangC. SturmA. GilH. TsertosS. SpataroS. SpataroJ. WüstenfeldI. FröhlichT. LiuJ. L. BoyardL. LopesJoachim StrothR. KrückenE. MorinièreF. DohrmannWolfgang KuhnP. ZumbruchE. CastroM. TraxlerB. BannierT. EberlE. EpplePaolo FinocchiaroO. PechenovaJ. PietraszkoYu. G. SobolevC. MüntzC. WendischFilip KrizekV. PechenovJ. S. LangeAlexander BelyaevO. V. FateevR. HolzmannJ. Markert

subject

Nuclear reactionPhysicsNuclear and High Energy Physics010308 nuclear & particles physicsHadronRadius[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]01 natural sciencesNuclear physicsMomentumPionPair productionCorrelation function0103 physical sciencesAtomic physics010306 general physicsNucleonNuclear Experiment

description

Results on pp, π+π+, and π-π- intensity interferometry are reported for collisions of Ar+KCl at 1.76$A$~GeV beam energy, studied with the High Acceptance Di-Electron Spectrometer (HADES) at SIS18/GSI. The experimental correlation functions as a function of the relative momentum are compared to model calculations allowing the determination of the space-time extent of the corresponding emission sources. The π π source radii are found significantly larger than the pp emission radius. The present radii do well complement the source-size excitation functions of the collision system of size $A+A \simeq 40+40$. The pp source radius at fixed beam energy is found to increase linearly with the cube root of the number of participants. From this trend, a lower limit of the pp correlation radius is deduced.

yearjournalcountryeditionlanguage
2011-05-01
10.1140/epja/i2011-11063-xhttp://hal.in2p3.fr/in2p3-00605080