TY  - JOUR
A1  - Miśkowiec, Dariusz Czesław
A1  - Ahner, Wolfgang
A1  - Barth, Ralph
A1  - Cieślak, Maciej
A1  - De̜bowski, Mariusz
A1  - Grosse, Eckart
A1  - Henning, Walter
A1  - Koczoń, Piotr
A1  - Schicker, Rainer
A1  - Schwab, Erwin
A1  - Senger, Peter
A1  - Baltes, Peter
A1  - Müntz, Christian
A1  - Oeschler, Helmut
A1  - Sartorius, S.
A1  - Sturm, Christian
A1  - Wagner, Andreas
A1  - Beckerle, Peter
A1  - Bormann, Christian
A1  - Brill, Dieter R.
A1  - Shin, Yang-Hwan
A1  - Stein, Johannes
A1  - Stock, Reinhard
A1  - Ströbele, Herbert
A1  - Kohlmeyer, Bernd
A1  - Pöppl, Horst
A1  - Pühlhofer, Falk
A1  - Speer, Jürgen
A1  - Völkel, Konrad
A1  - Walús, Wladek
T1  - Observation of enhanced subthreshold K+ production in central collisions between heavy nuclei
T2  - Physical Review Letters
N2  - In the very heavy collision system 197Au+197Au the K+ production process was studied as a function of impact parameter at 1 GeV/nucleon, a beam energy well below the free N-N threshold. The K+ multiplicity increases more than linearly with the number of participant nucleons and the K+/ pi + ratio rises significantly when going from peripheral to central collisions. The measured K+ double differential cross section is enhanced by a factor of 6 compared to microscopic transport calculations if secondary processes (Delta N-->K Lambda N and Delta Delta -->K Lambda N) are ignored.
Y1  - 2005
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/3602
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30-18740
VL  - 72
IS  - 23
SP  - 3650
EP  - 3653
ER  -