Small-angle correlations of identical particles in carbon-carbon interactions atP=4.2 GeV/c per nucleon

Akhababian, N.; Bartke, J.; Grishin, V.G.; Kowalski, M.

doi:10.1007/bf01421760

Cited by 11 publications

(6 citation statements)

References 14 publications

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“…This confirms the general tendencies found in earlier papers on pp correlations [9,10]. This confirms the general tendencies found in earlier papers on pp correlations [9,10].…”

Section: Discussionsupporting

confidence: 92%

Size of the proton emission region inp-C,d-C, ?-C and C-C interactions at 4.2 GeV/c per incident nucleon from two-proton correlations

Agakishiyev¹,

Mekhteev²,

Boldea³

et al. 1987

Z. Physik A - Atomic Nuclei

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Correlations between secondary protons with small relative momenta have been studied in interactions of various light nuclei with the carbon target at 4.2 GeV/c per incident nucleon with the aim to determine the radius of the proton emission region. This radius is found to decrease with increasing momentum and transverse momentum of the proton pair, but it does not show any dependence on the mass of the projectile nucleus. 25.70.Np PACS:

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“…This confirms the general tendencies found in earlier papers on pp correlations [9,10]. This confirms the general tendencies found in earlier papers on pp correlations [9,10].…”

Section: Discussionsupporting

confidence: 92%

Size of the proton emission region inp-C,d-C, ?-C and C-C interactions at 4.2 GeV/c per incident nucleon from two-proton correlations

Agakishiyev¹,

Mekhteev²,

Boldea³

et al. 1987

Z. Physik A - Atomic Nuclei

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“…These experiments use pions or protons to construct the two-particle correlation function. Extensive measurements involving predominantly pion pairs have been made at kinetic energies per nucleon of several GeV, using not only heavy-ion beams (Fung et al, 1978;Angelov et al, 1980;Lu et al, 1981;Zarbakhsh et al, 1981;Beavis et al, 1983aBeavis et al, , 1983bBeavis et al, , 1986Agakishiev et al, 1984;Akhababian et al, 1984;Zajc et al, 1984;Liu et al, 1986;Chacon et al, 1988) but also d and He beams (Agakishiev et al, 1984). These results and some aspects of their theoretical interpretation are presented in Sec.…”

Section: Particle Emission In High-energy Nuclear Collisionsmentioning

confidence: 99%

“…With these caveats in mind we examine the results that have been obtained thus far. Table VI gives a summary of the equivalent Gaussiansource radii obtained from analysis of two-pion correlations in heavy-ion reactions at E/A^\.5-5 (Fung et al, 1978;Angelov et al, 1980;Beavis et al, 1983a;Agakishiev et al, 1984;Akhababian et al, 1984;Zajc et al, 1984;Chacon et al, 1988). In most analyses, the data are first corrected for Coulomb effects and then the parameters are determined by fitting the correlation function with a simple functional form such as Eq.…”

Section: B Relativistic Collisionsmentioning

confidence: 99%

Intensity interferometry in subatomic physics

1990

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The intensity interferometry technique, commonly referred to as the Hanbury-Brown/Twiss effect, has been applied to nuclear and elementary-particle collisions as a method of investigating their space-time evolution. In this review the theoretical framework of the technique is presented, describing the formulations in common use. A survey is made of its application to subatomic collisions, ranging from highenergy elementary-particle reactions to low-energy nuclear reactions. Results derived from experimental data analysis are compiled and discussed. A critique is made of the interpretational difficulties associated with the use of the technique in reaction studies.

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“…Following the almost linear dependence down to A part = 1, we deduce a lower limit of the Gaussian pp correlation radius of about (0.36 ± 0.45) fm (statistical error given). A very similar, almost linear, dependence on A [35], MSU [36], Plastic Ball [37], FOPI [14][15][16][17], E895 [38,39] [35], LBL magnetic spectrometer [40], LBL streamer chamber [41], BNL experiments E802 [42], E895 [43,39], E877 [44].…”

Section: Comparison To Other Experimentsmentioning

confidence: 99%

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

Agakishiev¹,

Bałanda²,

Bannier³

et al. 2011

Eur. Phys. J. A

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Abstract. Results on pp, π+ π + , and π − π − intensity interferometry are reported for collisions of Ar+KCl at 1.76A 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 ππ source radii are found significantly larger than the pp emission radius. The present radii do well complement the beam-energy dependences of Gaussian source radii of the collision system of size A + A 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.

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Small-angle correlations of identical particles in carbon-carbon interactions atP=4.2 GeV/c per nucleon

Cited by 11 publications

References 14 publications

Size of the proton emission region inp-C,d-C, ?-C and C-C interactions at 4.2 GeV/c per incident nucleon from two-proton correlations

Size of the proton emission region inp-C,d-C, ?-C and C-C interactions at 4.2 GeV/c per incident nucleon from two-proton correlations

Intensity interferometry in subatomic physics

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

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