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Title: {gamma} rays from muon capture in natural Ca, Fe, and Ni

Abstract

A significant improvement has been made in the identification of {gamma} rays from muon capture in natural Ca, and to a lesser extent for Fe and Ni. For calcium, capture was observed in {sup 44}Ca and even {sup 42}Ca, as well as the dominant {sup 40}Ca. The ({mu}{sup -},{nu}) reaction was clearly observed in {sup 40}Ca, but, as in the past, no clear identification was made in Fe and Ni. The ({mu}{sup -},{nu}n) reaction was clearly observed in all nuclei, and the {gamma} rays observed correspond better to the ({gamma},p) reaction than to spectroscopic factors from the (d,{sup 3}He) or (t,{alpha}) reactions. Some ({mu}{sup -},{nu}2n) and other reactions have been observed at a lower yield.

Authors:
;  [1]
  1. Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia V6T 1Z1 (Canada)
Publication Date:
OSTI Identifier:
20771494
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. C, Nuclear Physics; Journal Volume: 73; Journal Issue: 4; Other Information: DOI: 10.1103/PhysRevC.73.045501; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; CALCIUM 40; CALCIUM 42; CALCIUM 44; CAPTURE; GAMMA RADIATION; HELIUM 3; IRON 56; MUONS MINUS; NICKEL 58; NUCLEAR REACTION YIELD; PHOTONUCLEAR REACTIONS; SPECTROSCOPIC FACTORS

Citation Formats

Measday, David F., and Stocki, Trevor J.. {gamma} rays from muon capture in natural Ca, Fe, and Ni. United States: N. p., 2006. Web. doi:10.1103/PhysRevC.73.045501.
Measday, David F., & Stocki, Trevor J.. {gamma} rays from muon capture in natural Ca, Fe, and Ni. United States. doi:10.1103/PhysRevC.73.045501.
Measday, David F., and Stocki, Trevor J.. Sat . "{gamma} rays from muon capture in natural Ca, Fe, and Ni". United States. doi:10.1103/PhysRevC.73.045501.
@article{osti_20771494,
title = {{gamma} rays from muon capture in natural Ca, Fe, and Ni},
author = {Measday, David F. and Stocki, Trevor J.},
abstractNote = {A significant improvement has been made in the identification of {gamma} rays from muon capture in natural Ca, and to a lesser extent for Fe and Ni. For calcium, capture was observed in {sup 44}Ca and even {sup 42}Ca, as well as the dominant {sup 40}Ca. The ({mu}{sup -},{nu}) reaction was clearly observed in {sup 40}Ca, but, as in the past, no clear identification was made in Fe and Ni. The ({mu}{sup -},{nu}n) reaction was clearly observed in all nuclei, and the {gamma} rays observed correspond better to the ({gamma},p) reaction than to spectroscopic factors from the (d,{sup 3}He) or (t,{alpha}) reactions. Some ({mu}{sup -},{nu}2n) and other reactions have been observed at a lower yield.},
doi = {10.1103/PhysRevC.73.045501},
journal = {Physical Review. C, Nuclear Physics},
number = 4,
volume = 73,
place = {United States},
year = {Sat Apr 15 00:00:00 EDT 2006},
month = {Sat Apr 15 00:00:00 EDT 2006}
}
  • A significant improvement has been made in the identification of gamma-rays from muon capture in Al, Si, natural Ca, I, Au, Bi, and to a lesser extent for Fe, and Ni. For calcium, capture was observed in 44Ca and even 42Ca, as well as the dominant 40Ca. The ({mu}-, {nu}) reaction was clearly observed in 27Al, 28Si, and 40Ca, but, as in the past, no clear identification was made in heavier elements. The ({mu}-, {nu}n) reaction was clearly observed in all nuclei, and the intensity pattern of the gamma-rays corresponds better to the pattern observed in the ({gamma},p) reaction rathermore » than to spectroscopic factors from the (d,3He) or (t,{alpha}) reactions. Some ({mu}-, {nu}2n) and other reactions have been observed at a lower yield.« less
  • Muon capture {gamma} rays have been observed for the first time in {sup 27}Al, and a significant improvement has been made in the identification of {gamma}-rays from muon capture in natural Si. The ({mu}{sup -},{nu}{gamma}) reaction was clearly observed in both nuclei and, for {sup 28}Si, compares well with calculations. The ({mu}{sup -},{nu}n{gamma}) reaction was also observed strongly in both nuclei, and the levels which are excited correlate fairly well with the ({gamma},p) reaction, but not as well with the spectroscopic factors from the (d, {sup 3}He) reaction. Some ({mu}{sup -},{nu}2n{gamma}), ({mu}{sup -},{nu}3n{gamma}), ({mu}{sup -},{nu}p{gamma}), ({mu}{sup -},{nu}pn{gamma}), and other reactionsmore » have been observed at a lower yield. The Lyman series of the muonic x ray cascades have also been studied.« less
  • A significant improvement has been made in the identification of {gamma} rays from muon capture in I, Au, and Bi, all monisotopic elements. The ({mu}{sup -},{nu}n) reaction was clearly observed in all nuclei, but the levels excited do not correlate well with the spectroscopic factors from the (d,{sup 3}He) reaction. Some ({mu}{sup -},{nu}2n), ({mu}{sup -},{nu}3n), ({mu}{sup -},{nu}4n), ({mu}{sup -},{nu}5n) and other reactions have been observed at a lower yield. The muonic x-ray cascades have also been studied in detail.