FIZIKA B 10 (2001)  4, 279-284

MULTINUCLEON EMISSION FOLLOWING THE PION ABSORBTION
IN N, Ar AND Xe

DARKO ANDROIĆ^h, G. BACKENSTOSS^a, DAMIR BOSNAR^h,T. DOOLING^f
P. A. M. GRAM^c, N. K. GREGORY^d, A. HOFFART^b,g, C. H. Q. INGRAM^g,
A. KLEIN^f, K. KOCH^g, J. KOEHLER^a, B. KOTLINSKI^g,
M. KRÖDEL^a, G. KYLE^e, A. LEHMANN ^a,g, A. O. MATEOS^d,
K. MICHAELIAN^g, TOMISLAV PETKOVIĆ^h, MIRKO PLANINIĆ^h, R. P. REDWINE^d,
D. ROWNTREE^d,NEVEN ŠIMIČEVIĆ^d, R. TREZECIAK^b, H.ULLRICH^b,
H. J. WEYER^a,g, M. WILDI^a and K. E. WILSON^d

^aUniversity of Basel, CH-4056 Basel, Switzerland
^bUniversity of Karlsruhe, D-7500 Karlsruhe, Germany
^cLAMPF, Los Alamos, NM 87545, USA
^dMassachusetts Institute of Technology, Cambridge, MA 02139, USA
^eNew Mexico State University, Las Cruces, NM 88003, USA
^fOld Dominion University, Norfolk, VA 23529, USA
^gPaul Scherrer Institute, CH-5232 Villigen PSI, Switzerland
^hUniversity of Zagreb, HR-10000 Zagreb, Croatia
(LADS Collaboration)

Dedicated to Professor Kseno Ilakovac on the occasion of his 70^th birthday

Received 12 February 2002; Accepted 18 March 2002
Online 6 April 2002

Positive pion absorption was studied in an almost 4p geometry allowing simultaneous measurements of various charge and neutral multiplicities. Total absorption cross sections and its decomposition into the most important channels is determined. The results are presented for N, Ar and Xe nuclei at incident pion energies of 118,162 and 239 MeV. The role of multinucleon emission in the absorption process is emphasized.

PACS numbers: 25.80.Hp, 13.75.-n
UDC 539.126

Keywords: positive pion absorption, 118,162 and 239 MeV, N, Ar and Xe targets, 4p geometry, total absorption cross sections, decomposition into the most important channels, multinucleon emission

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