A 4π neutron multiplicity detector for heavy-ion experiments

We review in this contribution the information we can obtain from heavy-ion experiments about the interaction of mesons with matter. We demonstrate that the vector mesons seen in experiments come predominantly from low densities. Kaons offer a better opportunity but most of the presently available experimental observables do not allow to analyze separately the three essential unknown quantities: the kaon production cross-section in the medium, the K+N potential interaction at finite densities and temperatures and the kaon (elastic or charge exchange) rescattering cross-section in the medium. We propose a measurement which almost exclusively tests the K+N potential.

Download Full-text

Meson properties from a bag model compared to lattice theory and heavy ion experiments

Zeitschrift für Physik C Particles and Fields ◽

10.1007/bf01413114 ◽

1994 ◽

Vol 61 (2) ◽

pp. 347-350 ◽

Cited By ~ 3

Author(s):

Jishnu Dey ◽

Lauro Tomio ◽

Mira Dey ◽

Somenath Chakrabarty

Keyword(s):

Lattice Theory ◽

Heavy Ion ◽

Heavy Ion Experiments ◽

Bag Model

Download Full-text

A BGO detector array and its application in intermediate energy heavy ion experiments

Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment ◽

10.1016/0168-9002(96)00007-1 ◽

1996 ◽

Vol 373 (2) ◽

pp. 198-201 ◽

Cited By ~ 7

Author(s):

Zuyu Li ◽

Genming Jin ◽

Zhiyong He ◽

Limin Duan ◽

Heyu Wu ◽

...

Keyword(s):

Heavy Ion ◽

Intermediate Energy ◽

Heavy Ion Experiments ◽

Detector Array

Download Full-text

Pre-saddle and pre-scission neutron emission rates in heavy-ion induced fission of 16O +208Pb and 16O +209Bi systems

International Journal of Modern Physics E ◽

10.1142/s0218301319500137 ◽

2019 ◽

Vol 28 (03) ◽

pp. 1950013

Author(s):

Saeed Soheyli ◽

Morteza Khalil Khalili ◽

Ghazaaleh Ashrafi

Keyword(s):

Emission Rate ◽

Neutron Emission ◽

Nonlinear Behavior ◽

Heavy Ion ◽

Neutron Multiplicity ◽

Emission Rates ◽

Reaction Systems ◽

Initial Excitation ◽

Induced Fission ◽

First Time

Whereas there is a slight information on the pre-saddle neutron emission rate and neutron multiplicity, as well as it is impossible to separate the pre-saddle and saddle to scission neutron contributions experimentally, the theoretical studies of pre-saddle neutron emission rate and neutron multiplicity are of great importance. In the present work, the calculations of pre-saddle neutron multiplicity are performed using the analysis of fission fragment angular anisotropy data for [Formula: see text] and [Formula: see text] reaction systems. The obtained results show that the pre-saddle neutron multiplicity decreases by increasing the initial excitation energy and it has found to be characterized by a nonlinear behavior. Through the analysis of pre-saddle neutron multiplicity and pre-saddle transition time by means of the neutron clock method, the pre-saddle neutron emission rate is calculated for the first time. The findings of this study show that the pre-scission neutron emission rate is lower than the pre-saddle neutron emission rate.

Download Full-text