skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: High-spin spectroscopy of 124,125,126Xe

Abstract

High-spin states in 124,125,126Xe have been populated in the reaction 82Se ( 48Ca, xn) 130-xXe and -ray coincidences were measured with the GAMMASPHERE spectrometer. Twelve new bands extending into the spin 50–60 ~ region are identified in 125Xe and 126Xe and previously known rotational bands at low spins are confirmed and extended. Earlier known structures in 124Xe are confirmed and a new band is observed. Irregular structures are identified at the top of the yrast and a side band in this nucleus. Configuration assignments for the different structures are suggested.

Authors:
 [1];  [1];  [1];  [1];  [1];  [2];  [2];  [2];  [2];  [3];  [3];  [3];  [4];  [4];  [5];  [5];  [5];  [5];  [6]
  1. Univ. of Bonn (Germany)
  2. Univ. of Copenhagen (Denmark). The Niels Bohr Inst.
  3. Istituto Nazionale di Fisica Nucleare (INFN), Milano (Italy); Univ. di Milano (Italy)
  4. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  5. Argonne National Lab. (ANL), Argonne, IL (United States)
  6. Yale Univ., New Haven, CT (United States)
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1407053
Grant/Contract Number:
AC02-05CH11231
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Acta Physica Polonica. Series B
Additional Journal Information:
Journal Volume: 38; Journal Issue: 4; Journal ID: ISSN 0587-4254
Publisher:
Jagiellonian University
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS

Citation Formats

Al-Khatib, A., Huebel, H., Bringel, P., Engelhardt, C., Neusser-Neffgen, A., Hagemann, G. B., Hansen, C. R., Herskind, B., Sletten, G., Bracco, A., Camera, F., Benzoni, G., Fallon, P., Clark, R. M., Carpenter, M. P., Janssens, R. V. F., Khoo, T. L., Chowdhury, P., and Amro, H. High-spin spectroscopy of 124,125,126Xe. United States: N. p., 2007. Web.
Al-Khatib, A., Huebel, H., Bringel, P., Engelhardt, C., Neusser-Neffgen, A., Hagemann, G. B., Hansen, C. R., Herskind, B., Sletten, G., Bracco, A., Camera, F., Benzoni, G., Fallon, P., Clark, R. M., Carpenter, M. P., Janssens, R. V. F., Khoo, T. L., Chowdhury, P., & Amro, H. High-spin spectroscopy of 124,125,126Xe. United States.
Al-Khatib, A., Huebel, H., Bringel, P., Engelhardt, C., Neusser-Neffgen, A., Hagemann, G. B., Hansen, C. R., Herskind, B., Sletten, G., Bracco, A., Camera, F., Benzoni, G., Fallon, P., Clark, R. M., Carpenter, M. P., Janssens, R. V. F., Khoo, T. L., Chowdhury, P., and Amro, H. Sun . "High-spin spectroscopy of 124,125,126Xe". United States. doi:. https://www.osti.gov/servlets/purl/1407053.
@article{osti_1407053,
title = {High-spin spectroscopy of 124,125,126Xe},
author = {Al-Khatib, A. and Huebel, H. and Bringel, P. and Engelhardt, C. and Neusser-Neffgen, A. and Hagemann, G. B. and Hansen, C. R. and Herskind, B. and Sletten, G. and Bracco, A. and Camera, F. and Benzoni, G. and Fallon, P. and Clark, R. M. and Carpenter, M. P. and Janssens, R. V. F. and Khoo, T. L. and Chowdhury, P. and Amro, H.},
abstractNote = {High-spin states in 124,125,126Xe have been populated in the reaction 82Se (48Ca, xn)130-xXe and -ray coincidences were measured with the GAMMASPHERE spectrometer. Twelve new bands extending into the spin 50–60 ~ region are identified in 125Xe and 126Xe and previously known rotational bands at low spins are confirmed and extended. Earlier known structures in 124Xe are confirmed and a new band is observed. Irregular structures are identified at the top of the yrast and a side band in this nucleus. Configuration assignments for the different structures are suggested.},
doi = {},
journal = {Acta Physica Polonica. Series B},
number = 4,
volume = 38,
place = {United States},
year = {Sun Apr 01 00:00:00 EDT 2007},
month = {Sun Apr 01 00:00:00 EDT 2007}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
The DOI is not currently available

Save / Share:
  • Levels excited up to 39.8 MeV and 119/2 units of angular momentum have been populated in {sup 125}Xe by the {sup 82}Se({sup 48}Ca,5n){sup 125}Xe reaction. High-fold {gamma}-ray coincidence events were measured using the Gammasphere Ge detector array. Nine regular rotational bands extending from levels identified previously up to almost 60{h_bar} have been identified, and three of these have been connected to low-lying levels having well-established spins and parities. Configurations have been assigned to six of the bands based on alignment properties, band crossings, and comparison with theoretical cranked shell model calculations (CSM). Transition quadrupole moments have been measured for thesemore » bands in the spin range 31-55 {h_bar} and were found to be in agreement with the CSM calculations. The corresponding quadrupole deformation {epsilon}{sub 2} ranges from 0.28 to 0.34 at a {gamma} deformation of 0{sup o} and from 0.29 to 0.36 at a {gamma} value of 5{sup o}.« less
  • Levels excited up to 39.8 MeV and 119/2 units of angular momentum have been populated in {sup 125}Xe by the {sup 82}Se({sup 48}Ca,5n){sup 125}Xe reaction. High-fold {gamma}-ray coincidence events were measured using the Gammasphere Ge detector array. Nine regular rotational bands extending from levels identified previously up to almost 60 ({h_bar}/2{pi}) have been identified, and three of these have been connected to low-lying levels having well-established spins and parities. Configurations have been assigned to six of the bands based on alignment properties, band crossings, and comparison with theoretical cranked shell model calculations (CSM). Transition quadrupole moments have been measured formore » these bands in the spin range 31-55 ({h_bar}/2{pi}) and were found to be in agreement with the CSM calculations. The corresponding quadrupole deformation {epsilon}{sub 2} ranges from 0.28 to 0.34 at a {gamma} deformation of 0 deg. and from 0.29 to 0.36 at a {gamma} value of 5 deg.« less
  • Millimeter-wave transitions between high-n Rydberg states of several isotopes of xenon have been recorded at sub-megahertz resolution. The fine and, for {sup 129}Xe and {sup 131}Xe, hyperfine structures of s, p, d, and f Rydberg states with principal quantum number in the range 52{<=}n{<=}64 have been determined from combination differences and analyzed using multichannel quantum defect theory. Improved eigenquantum defects and channel interaction parameters for the odd- and even-parity Rydberg states of xenon and the hyperfine structure of the {sup 2}P{sub 3/2} ground state of {sup 129}Xe{sup +} and {sup 131}Xe{sup +} have been obtained. Nearly degenerate p and dmore » fine or hyperfine levels are very easily mixed by even weak stray electric fields.« less
  • We investigate {sup 129}Xe-Cs (D{sub 1},D{sub 2}) spin exchange optical pumping (SEOP) at high Xe densities ({approx}0.12-2.44 amagat) using newly available high-power (>40 W) laser diode arrays and compare with {sup 129}Xe-Rb D{sub 1} SEOP under similar conditions. At elevated Xe densities, the spin-exchange rate (per alkali-metal atom, {gamma}{sup '}) for Cs-{sup 129}Xe is {approx}1.5-fold greater than that for Rb-{sup 129}Xe. Higher spin-exchange rates and lower {sup 129}Xe spin-destruction rates for Cs-{sup 129}Xe versus Rb-{sup 129}Xe contribute to {approx}twofold improvement in {sup 129}Xe nuclear spin polarization measured at 9.4 T - with the largest gains observed at the highest Xemore » densities.« less