Abstract
Excitation energies, mean lifetimes, gamma-ray branching ratios, angular correlations and linear polarizations have been measured for levels below 5.3 MeV in 37Cl. The states were populated using the 34S( alpha ,p gamma )37Cl reaction at bombarding energies between 9.0 MeV and 12.2 MeV. A gamma-gamma coincidence experiment was performed at 11.5 MeV to obtain the decay scheme. New measurements were made for the following levels: Ex( tau m)Jpi ; 3087 keV (<40 fs) 5/2+; 3105 keV (48+or-5 ps) 7/2-; 3626 keV (40+or-20 fs) 3/2, 5/2, 7/2+; 3708 keV (<25 fs) 3/2+, 5/2-; 3740 keV (<20 fs) 5/2-; 4011 keV (31+or-3 ps) 9/2-; 4547 keV (2.7+or-0.6 ps) 11/2- and 5271 keV (2.7+or-0.4 ps) 13/2-. The results are compared with the properties of high-spin negative-parity states in neighbouring nuclei and are discussed in terms of recent shell-model calculations.