scholarly journals Gamma-ray fast-timing coincidence measurements from the 18O+18O fusion–evaporation reaction using a mixed LaBr3-HPGe array

2012 ◽  
Vol 70 (7) ◽  
pp. 1337-1339 ◽  
Author(s):  
T. Alharbi ◽  
P.J.R. Mason ◽  
P.H. Regan ◽  
Zs. Podolyák ◽  
N. Mărginean ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Fast Timing ◽  
Evaporation Reaction ◽  
Coincidence Measurements ◽  
Fusion Evaporation Reaction

scholarly journals Lifetime measurements in $$^{182}\hbox {Pt}$$ using $$\gamma $$–$$\gamma $$ fast-timing

2021 ◽  
Vol 57 (5) ◽  
Author(s):  
G. Häfner ◽  
A. Esmaylzadeh ◽  
J. Jolie ◽  
J.-M. Régis ◽  
C. Müller-Gatermann ◽  
...  
Keyword(s):  
Excited States ◽  
Theoretical Calculations ◽  
High Accuracy ◽  
Tandem Accelerator ◽  
Lifetime Measurements ◽  
Fast Timing ◽  
Evaporation Reaction ◽  
Configuration Mixing ◽  
The University ◽  
Fusion Evaporation Reaction

AbstractThe level lifetimes of the $$2_1^+$$ 2 1 + and $$4_1^+$$ 4 1 + states in $$^{182}\hbox {Pt}$$ 182 Pt have been re-measured employing the $$\gamma $$ γ –$$\gamma $$ γ fast-timing technique using fast $$\hbox {LaBr}_3$$ LaBr 3 (Ce) scintillators. Excited states in the nucleus of interest were populated by the fusion-evaporation reaction $$^{170}\hbox {Yb}(^{16}\hbox {O},\hbox {4n})^{182}\hbox {Pt}$$ 170 Yb ( 16 O , 4n ) 182 Pt at a beam energy of 87 MeV provided by the FN Tandem accelerator of the University of Cologne. The lifetime of the $$2_1^+$$ 2 1 + state was re-measured with high accuracy to be $$\tau = 563(12)~$$ τ = 563 ( 12 ) ps and resolves inconsistencies from previous measurements. Experimental results are compared to theoretical calculations in the framework of the sd-IBM with and without configuration mixing.

scholarly journals Experimental study of nuclei in the vicinity of the “island of inversion” through the fusion-evaporation reaction

2009 ◽  
Vol 80 (3) ◽  
Author(s):  
R. Chakrabarti ◽  
S. Mukhopadhyay ◽  
Krishichayan ◽  
A. Chakraborty ◽  
A. Ghosh ◽  
...  
Keyword(s):  
Experimental Study ◽  
Island Of Inversion ◽  
Evaporation Reaction ◽  
Fusion Evaporation Reaction

scholarly journals Study of neutron-deficient mercury isotopes Preliminary results on 189Hg

2019 ◽  
Vol 223 ◽  
pp. 01072
Author(s):  
Irene Zanon ◽  
Marco Siciliano ◽  
Alain Goasduff ◽  
Philipp R. John
Keyword(s):  
Shape Coexistence ◽  
Shape Transition ◽  
Isotopic Chain ◽  
Preliminary Results ◽  
Mercury Isotopes ◽  
Evaporation Reaction ◽  
Fusion Evaporation Reaction

The mercury isotopic chain is depicted as one of the best fields to observe many phenomena related to collectivity evolution as, for instance, shape transition, shape coexistence or shape staggering. In this context, the 189Hg presents several interesting aspects and is still relatively unexplored. The nucleus has been studied at the Laboratori Nazionali di Legnaro using a fusion-evaporation reaction and the γ rays emitted have been detected by the GALILEO array, coupled with Neutron Wall and the GALILEO plunger. The presorting and the preliminary results are presented.

LIFETIME MEASUREMENTS IN 134Pr AND CHIRALITY IN NUCLEI

2006 ◽  
Vol 15 (07) ◽  
pp. 1531-1540 ◽  
Author(s):  
D. TONEV ◽  
P. PETKOV ◽  
D. L. BALABANSKI ◽  
G. DE ANGELIS ◽  
A. GADEA ◽  
...  
Keyword(s):  
Doppler Shift ◽  
Transition Probabilities ◽  
Experimental Results ◽  
Lifetime Measurements ◽  
Evaporation Reaction ◽  
Doppler Shift Attenuation ◽  
Recoil Distance ◽  
Reduced Transition Probabilities ◽  
Fusion Evaporation Reaction

Lifetimes of exited states in 134 Pr were measured be means of the recoil distance Doppler-shift and Doppler-shift attenuation techniques. The experiments were performed at IReS, Strasbourg using the EUROBALL IV spectrometer, in conjunction with the inner BGO ball and the Cologne coincidence plunger apparatus. Exited states in 134 Pr were populated in the fusion-evaporation reaction 119 Sn (19 F , 4 n )134 Pr . Reduced transition probabilities in 134 Pr are compared to the predictions of the two quasiparticle+triaxial rotor and interacting boson fermion-fermion models. The experimental results do not support the presence of static chirality in 134 Pr underlying the importance of shape fluctuations. Only within a dynamical context the presence of intrinsic chirality in 134 Pr can be supported.

scholarly journals FAST TIMING ANALYSIS OF CYGNUS X-1 USING THE SPECTROMETER ON THEINTERNATIONAL GAMMA-RAY ASTROPHYSICS LABORATORY

2011 ◽  
Vol 739 (2) ◽  
pp. 58 ◽  
Author(s):  
Clément Cabanac ◽  
Jean-Pierre Roques ◽  
Elisabeth Jourdain
Keyword(s):  
Gamma Ray ◽  
Timing Analysis ◽  
Fast Timing

scholarly journals A New Energy Level in 20Ne at 10·31 MeV

1964 ◽  
Vol 17 (1) ◽  
pp. 56 ◽  
Author(s):  
DG Sargood ◽  
GD Putt
Keyword(s):  
Energy Level ◽  
Neutron Energy ◽  
Gamma Ray ◽  
Angular Distributions ◽  
New Energy ◽  
State Spin ◽  
Gamma Decay ◽  
Coincidence Measurements ◽  
Made In

Neutron-gamma-ray coincidence measurements have been made in the reaction 19F(d,ny),oNe at bombarding energies between 500 and 700 keV. Time offlight determination of neutron energy indicates a new energy level in .oNe at lO� 31 �O' 07 MeV. From angular distributions of the neutrons, and observation of the gamma -decay spectrum of the 10.31 MeV state, spin and parity of 1 + are inferred for this state.

scholarly journals The Dominance of Proton/Neutron Evaporation Exit-Channel in a Fusion-Evaporation Reaction: The Effect of Target Nuclear Ratio (N/Z)

2020 ◽  
Vol 9 (6) ◽  
pp. 456-457
Keyword(s):  
Cross Section ◽  
Neutron Emission ◽  
Target Material ◽  
Evaporation Residue ◽  
Proton Emission ◽  
Statistical Model Calculation ◽  
Evaporation Reaction ◽  
Neutron Evaporation ◽  
Calculation Code ◽  
Fusion Evaporation Reaction

Cross section of different evaporation residue have been calculated in 112Sn+16O (Neuron/Proton (N/Z) of the 112Sn target is 1.24) and124Sn+16O reaction (N/Z of the 124Sn is 1.48) with beam energy of 80 MeV using statistical model calculation code PACE4. These calculations predicts that the proton emission channels are predicted to be dominant when the N/Z ratio is small (i.e in the first reaction) whereas the neutron emission outgoing channels dominant in the second reaction when N/Z is large. Experimental phenomenon also revealed the fact that in order to populate the proton or neutron reach nucleus we have to choose the target material accordingly.

scholarly journals New Results on Excited States in the one-particle one-hole nucleus 56Co measured with MINIBALL detectors

2019 ◽  
Vol 223 ◽  
pp. 01042
Author(s):  
A. Montaner-Pizá ◽  
B. Rubio ◽  
D. Mücher ◽  
S.E.A. Orrigo ◽  
E.C. Simpson ◽  
...  
Keyword(s):  
High Resolution ◽  
Excited States ◽  
Level Scheme ◽  
Incident Energy ◽  
Angular Distributions ◽  
Spin Parity ◽  
Evaporation Reaction ◽  
The One ◽  
Large Improvement ◽  
Fusion Evaporation Reaction

The non-yrast states of the odd-odd nucleus 56Co have been investigated by studying the γ-rays induced in the predominantly fusion-evaporation reaction 56Fe(p,n γ)56Co at an incident energy of 10 MeV. The γ-rays were measured in-beam with four high-resolution MINIBALL-triple germanium (Ge) detectors. The experiment provided excellent data in γ-γ coincidences. The complex level scheme of 56Co was constructed mainly based on the analysis of these γ-γ coincidences. The angular distributions of the γ-rays were also analysed and allowed us to assign spin-parity values to most of the excited states in this nucleus. Despite the extensive work previously done studying the 56Co nucleus, the analysis presented in this work has resulted in a large improvement in the knowledge of its structure.

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