FIZIKA B 10 (2001) 4, 279-284
MULTINUCLEON EMISSION FOLLOWING THE PION ABSORBTION
IN N, Ar AND Xe
DARKO ANDROIĆh, G. BACKENSTOSSa, DAMIR BOSNARh,T.
P. A. M. GRAMc, N. K. GREGORYd, A. HOFFARTb,g, C. H. Q.
A. KLEINf, K. KOCHg, J. KOEHLERa, B. KOTLINSKIg,
M. KRÖDELa, G. KYLEe, A. LEHMANN a,g, A. O. MATEOSd,
K. MICHAELIANg, TOMISLAV PETKOVIĆh, MIRKO PLANINIĆh, R.
D. ROWNTREEd,NEVEN ŠIMIČEVIĆd, R. TREZECIAKb,
H. J. WEYERa,g, M. WILDIa and K. E. WILSONd
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
Dedicated to Professor Kseno Ilakovac on the occasion of his 70th
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
PACS numbers: 25.80.Hp, 13.75.-n
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