Fermi's golden rule applied to the {gamma} decay in the quasicontinuum of {sup 46}Ti

Journal Article · Sat Jan 15 04:00:00 EST 2011 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.83.014312· OSTI ID:21499334

Guttormsen, M; Larsen, A C; Buerger, A; Goergen, A; Nyhus, H T; Siem, S; Syed, N U. H.; Toft, H K; Tveten, G M ^[1]; Harissopulos, S; Konstantinopoulos, T; Lagoyannis, A; Perdikakis, G; Spyrou, A ^[2]; Kmiecik, M; Mazurek, K ^[3]; Krticka, M ^[4]; Loennroth, T; Norrby, M ^[5]; Schiller, A ^[6]

---

1. Department of Physics, University of Oslo, N-0316 Oslo (Norway)
2. Institute of Nuclear Physics, NCSR 'Demokritos', 153.10 Aghia Paraskevi, Athens (Greece)
3. Institute of Nuclear Physics, PAN, Krakow (Poland)
4. Institute of Particle and Nuclear Physics, Charles University, Prague (Czech Republic)
5. Department of Physics, Aabo Akademi University, FIN-20500 Aabo (Finland)
6. Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701 (United States)

Particle-{gamma} coincidences from the {sup 46}Ti(p,p{sup '{gamma}}){sup 46}Ti inelastic scattering reaction with 15-MeV protons are utilized to obtain {gamma}-ray spectra as a function of excitation energy. The rich data set allows analyzsis of the coincidence data with various gates on excitation energy. For many independent data sets, this enables a simultaneous extraction of level density and radiative strength function (RSF). The results are consistent with one common level density. The data seem to exhibit a universal RSF as the deduced RSFs from different excitation energies show only small fluctuations provided that only excitation energies above 3 MeV are taken into account. If transitions to well-separated low-energy levels are included, the deduced RSF may change by a factor of 2-3, which might be expected because of the involved Porter-Thomas fluctuations.

• OSTI ID: 21499334
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 1 Vol. 83; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON REACTIONS
BARYONS
CHARGED-PARTICLE REACTIONS
DECAY
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL DENSITY
ENERGY-LEVEL TRANSITIONS
EXCITATION
EXTRACTION
FERMIONS
FLUCTUATIONS
FUNCTIONS
GAMMA DECAY
GAMMA SPECTRA
HADRON REACTIONS
HADRONS
INELASTIC SCATTERING
MEV RANGE
MEV RANGE 10-100
NUCLEAR DECAY
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUCLEONS
PARTICLES
PROTON REACTIONS
PROTONS
SCATTERING
SEPARATION PROCESSES
SPECTRA
STRENGTH FUNCTIONS
TARGETS
TITANIUM 46 TARGET
VARIATIONS