Emission time scale of light particles in the system Xe+Sn at 50 AMeV. A probe for dynamical emission?

D. Gourio - et al.

doi:doi:10.1007/PL00013604

2021 Impact factor 3.131

Hadrons and Nuclei

Eur. Phys. J. A 7, 245-253

Emission time scale of light particles in the system Xe+Sn
at 50 AMeV. A probe for dynamical emission?

D. Gourio¹ - D. Ardouin² - M. Assenard² - G. Auger³ - Ch.O. Bacri⁴ - N. Bellaize⁵ - A. Benkirane³ - J. Benlliure³ - B. Berthier⁶ - E. Bisquer⁷ - B. Borderie⁴ - R. Bougault⁵ - P. Box⁴ - R. Brou⁵ - J.L. Charvet⁶ - A. Chbihi³ - J. Colin⁵ - D. Cussol⁵ - R. Dayras⁶ - E. De Filippo⁶ - A. Demeyer⁷ - C. Donnet⁷ - D. Durand⁵ - P. Ecomard³ - P. Eudes² - M. Germain² - D. Guinet⁷ - L. Lakehal-Ayat⁴ - P. Lautesse⁷ - J.L. Laville³ - L. Lebreton⁷ - C. Le Brun⁵ - J.F. Lecolley⁵ - T. Lefort⁵ - A. Lefèvre³ - R. Legrain⁶ - N. Le Neindre⁵ - O. Lopez⁵ - M. Louvel⁵ - N. Marie³ - V. Métivier² - L. Nalpas⁶ - A. Ouatizerga⁴ - M. Parlog⁸ - J. Péter⁵ - E. Plagnol⁴ - E. Pollaco⁶ - A. Rahmani² - R.Régimbart⁵ - T. Reposeur² - M.F. Rivet⁴ - E. Rosato⁹ - F. Saint-Laurent³ - S. Salou³ - M. Squalli⁴ - J.C. Steckmeyer⁵ - G. Tabacaru⁸ - B. Tamain⁵ - L. Tassan-Got⁴ - E. Vient⁵ - C. Volant⁶ - J.P. Wieleczko³ - A. Wieloch⁵ - K. Yuasa-Nakagawa⁵

¹ GSI mbH, 64291 Darmstadt, Germany
² SUBATECH, IN2P3-CNRS et Universitè, 44070 Nantes Cedex, France
³ GANIL, CEA et IN2P3-CNRS, B.P. 5027, 14076 Caen Cedex, France
⁴ IPN, IN2P3-CNRS, 91406 Orsay Cedex, France
⁵ LPC, IN2P3-CNRS, ISMRA et Universitè, 14050 Caen Cedex, France
⁶ DAPNIA/SPhN, CEA/Saclay, 91191 Gif sur Yvette Cedex, France
⁷ IPN, IN2P3-CNRS et Universitè, 69622 Villeurbanne Cedex, France
⁸ NIPNE, 76900 Bucharest-Magurele, Romania
⁹ DSFSezione INFN, Université di Napoli "Federico II'', 80126 Napoli, Italy

Received: 30 July 1999 / Revised version: 22 November 1999 Communicated by P. Schuck

Abstract
Proton and deuteron correlation functions have been investigated with both impact parameter and emission source selections. The correlations of the system ¹²⁹Xe+^NatSnat 50 AMeV have been measured with the 4 $\pi$ INDRA which provides a complete kinematical description of each event. The emission time scale analyzed with a quantum model reveals the time sequence of the light particles emitted by the projectile-like fragment. The short and constant emission time of the proton, independent of the impact parameter, can be attributed to a preequilibrium process.