High spin states in102Ag

Abstract

High spin states are populated in l~ using the reaction 160 + 89y with projectile energies in the energy range 60-80 MeV. Gamma multipolarities are inferred from DCO ratios and coincidence relationships are established among the gamma rays assigned to l~ A comprehensive level scheme is constructed with four band systems, two of positive parity and the other two of negative parity. The present study extended spins upto 19-in the main negative parity band. A new band is populated in the present work and is similar to the one observed in t~

Parity of the band head at 3710 keV in 99Rh using clover detector as compton polarimeter

“…Since the 2593 keV level in Rh has a positive parity, the present measurements fix a negative parity for the band head at 3710 keV in Rh. This is in contrast to the positive parity for this state suggested in [8] from systematics. The negative parity for 3710 keV state suggests that it is formed due to the coupling of Ô ½ ¾ and ¾ protons with ¾ and × ½ ¾ neutrons.…”

“…The involvement of Ô ½ ¾ proton is supported by the observation of strong M1 transitions with ¡Á ½ [8] in the band built over the 3710 keV´¾¿ ¾ µ state. But the excitation of neutrons to ½½ ¾ orbital can lead to an increased deformation in the band built on the 3710 keV state.…”

“…Wyss [7] has also predicted the existence of negative parity deformed band with neutron configurations involving ½½ ¾ orbital in Ru having AE . Levels in Rh with and AE were reported by Ravi Kumar et al [8]. It showed a sequence of E2 transitions based on the  ´ ¾µ · and another sequence with relatively strong ¡Â ½ transitions built on 3710 keV level.…”

“…It is obtained for a point scatterer and point analyzer at 90 AE i.e., ¼ AE from Klein-Nishina formula (see eq. (7)) and the kinematics of a photon scattering from an electron i.e., É ¼´ µ « · ½ « ¾ · « · ½ (8) where « Ñ ¾ , being the incident photon energy and Ñ ¾ is the electron rest mass energy. It should be noted here that É ¼ is independent of -ray multipolarity.…”