Deep subthreshold production in 36Ar+ 197Au collisions

✍ Scribed by N. Yahlali; J. Díaz; L. Aphecetche; D.G. d'Enterria; M.J. van Goethem; M. Hoefman; A. Kugler; H. Loehner; G. Martínez; R.W. Ostendorf; S. Schadmand; Y. Schutz; R. Turrisi; W. Wagner; H. Wilschut

• Publisher: Elsevier Science
• Year: 2005
• Tongue: English
• Weight: 137 KB
• Volume: 749
• Category: Article
• ISSN: 0375-9474
• DOI: 10.1016/j.nuclphysa.2004.12.032

✦ Synopsis

We present in this paper transverse momentum and rapidity distributions of π 0 -mesons measured in 36 Ar+ 197 Au collisions at 25A and 35A MeV beam energies with the TAPS spectrometer at the KVI AGOR accelerator. p t spectra are consistent with thermallike emission of π 0 -mesons with temperature parameters considerably lower than other available data at the same beam energies. Rapidity distributions point to the contribution of two different π 0 production mechanisms.