6533b860fe1ef96bd12c3bff

RESEARCH PRODUCT

Gamma-spectroscopy of the 199At nucleus with the recoil filter detector

K. M. SpohrM. LachN. SchulzA. Lopez-martensF. HannachiJ. StyczenM. PalaczPeter M. JonesR. ChapmanD.j. MiddletonP. BednarczykJ.c. MerdingerK. H. MaierS. CourtinM. B. SmithJ. KownackiM. ZieblinskiJ. GreboszW. Meczynski

subject

PhysicsNuclear and High Energy Physics[PHYS.NEXP] Physics [physics]/Nuclear Experiment [nucl-ex]010308 nuclear & particles physicsFissionNuclear TheoryHadron[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]01 natural sciencesNuclear physicsRecoilmedicine.anatomical_structureExcited state0103 physical sciencesmedicineNuclear fusionGamma spectroscopyNeutronAtomic physicsNuclear Experiment010306 general physicsNucleus

description

The neutron deficient 199At nucleus has been studied in the 175Lu+28Si reaction at Eb= 141 MeV. In order to select events of interest in the presence of the very strong background caused by fission, γ-rays have been detected in coincidence with recoiling evaporation residues. The excited states of 199At observed for the first time may indicate that this nucleus is deformed.

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