Abstract
The properties of the {Delta}-resonance is of central importance in many of the processes under study in intermediate energy physics. Perhaps the most noticeable change of the properties of the {Delta}-excitation in the nuclear medium is the substantial increase of its width. We calculate the decay of the delta into a nucleon and a general pisobar mode consisting of NN{sup -1}-, {pi}- and {Delta}N{sup -1}-modes. The decay is calculated without any width of the {Delta}-resonance in the pisobar as well as with a selfconsistent width. For the case of no width the decay is separated into different channels. It is found that NN{sup -1} channel is not only dominating the decay at low energies of the {Delta}-resonance but at high densities ({rho}>1.5{rho}{sub 0}) this channel also dominates the decay at higher energies. Qualitative agreement with inclusive and exclusive (p,n) and ({sup 3}He,T) experiments is achieved. (au) (23 refs.).
Citation Formats
Arve, P, and Helgesson, J.
The decay of a delta resonance in the nuclear medium.
Sweden: N. p.,
1992.
Web.
Arve, P, & Helgesson, J.
The decay of a delta resonance in the nuclear medium.
Sweden.
Arve, P, and Helgesson, J.
1992.
"The decay of a delta resonance in the nuclear medium."
Sweden.
@misc{etde_10127955,
title = {The decay of a delta resonance in the nuclear medium}
author = {Arve, P, and Helgesson, J}
abstractNote = {The properties of the {Delta}-resonance is of central importance in many of the processes under study in intermediate energy physics. Perhaps the most noticeable change of the properties of the {Delta}-excitation in the nuclear medium is the substantial increase of its width. We calculate the decay of the delta into a nucleon and a general pisobar mode consisting of NN{sup -1}-, {pi}- and {Delta}N{sup -1}-modes. The decay is calculated without any width of the {Delta}-resonance in the pisobar as well as with a selfconsistent width. For the case of no width the decay is separated into different channels. It is found that NN{sup -1} channel is not only dominating the decay at low energies of the {Delta}-resonance but at high densities ({rho}>1.5{rho}{sub 0}) this channel also dominates the decay at higher energies. Qualitative agreement with inclusive and exclusive (p,n) and ({sup 3}He,T) experiments is achieved. (au) (23 refs.).}
place = {Sweden}
year = {1992}
month = {Jul}
}
title = {The decay of a delta resonance in the nuclear medium}
author = {Arve, P, and Helgesson, J}
abstractNote = {The properties of the {Delta}-resonance is of central importance in many of the processes under study in intermediate energy physics. Perhaps the most noticeable change of the properties of the {Delta}-excitation in the nuclear medium is the substantial increase of its width. We calculate the decay of the delta into a nucleon and a general pisobar mode consisting of NN{sup -1}-, {pi}- and {Delta}N{sup -1}-modes. The decay is calculated without any width of the {Delta}-resonance in the pisobar as well as with a selfconsistent width. For the case of no width the decay is separated into different channels. It is found that NN{sup -1} channel is not only dominating the decay at low energies of the {Delta}-resonance but at high densities ({rho}>1.5{rho}{sub 0}) this channel also dominates the decay at higher energies. Qualitative agreement with inclusive and exclusive (p,n) and ({sup 3}He,T) experiments is achieved. (au) (23 refs.).}
place = {Sweden}
year = {1992}
month = {Jul}
}