scholarly journals Angular Correlation Measurements in 33S

1977 ◽  
Vol 30 (1) ◽  
pp. 23 ◽  
Author(s):  
JR Southon ◽  
AR Poletti ◽  
DJ Beale
Keyword(s):  
Excitation Energy ◽  
Angular Correlation ◽  
High Energy ◽  
Branching Ratios ◽  
Angular Correlations ◽  
Mixing Ratios ◽  
Weak Decays ◽  
Energy States

The 32S(d, p) reaction has been used to excite states in 33S. Proton-gamma angular correlations for states up to 4�43 MeV in excitation energy have been measured to determine spins and y-ray branching and multipole mixing ratios. Results obtained for mixing ratios include 0(1� 97-+0) = 0'75�0'38, 0(2'93-+0) = 0�19�0�14 and 0(2'93-+1'97) = O�OO�O�04. Spin and parity assignments of 3/2 + and (1/2+, 3/2�) have been found for the 3� 94 and 4�43 MeV states respectively. Branching ratios have been determined for several previously unreported weak decays from high energy states.

scholarly journals Measurement of the structure of potential cluster bands and absolute branching ratios of high-energy states in 18O*

2020 ◽  
Vol 1643 ◽  
pp. 012155
Author(s):  
S. Pirrie ◽  
C. Wheldon ◽  
Tz. Kokalova ◽  
J. Bishop ◽  
R. Hertenberger ◽  
...  
Keyword(s):  
High Energy ◽  
Branching Ratios ◽  
Energy States

Nuclear g factors of three levels of 192Pt

1969 ◽  
Vol 47 (21) ◽  
pp. 2395-2399 ◽  
Author(s):  
D. B. Kenyon ◽  
L. Keszthelyi ◽  
J. A. Cameron
Keyword(s):  
Hyperfine Field ◽  
Angular Correlation ◽  
Iron Alloy ◽  
Scintillation Detectors ◽  
Angular Correlations ◽  
Mixing Ratios ◽  
G Factors

The g factors of the 316, 612, and 785 keV levels of 192Pt have been measured using gamma–gamma angular correlations perturbed by the hyperfine field in an iron alloy. Sources were 192Ir in 1 at.% Ir Fe alloy. Coincidences were observed using a combination of Ge(Li) and scintillation detectors. For the three levels, the g factors obtained were[Formula: see text]In addition, the E2/M1 mixing ratios were obtained from the angular correlation measurements.[Formula: see text]

AN ILLUSTRATION OF A TYPE OF TRIPLE CORRELATION MEASUREMENT WHICH CAN BE EASILY INTERPRETED

1960 ◽  
Vol 38 (7) ◽  
pp. 927-940 ◽  
Author(s):  
A. E. Litherland ◽  
G. J. McCallum
Keyword(s):  
Angular Correlation ◽  
Gamma Rays ◽  
Gamma Ray ◽  
Residual Nucleus ◽  
Incident Beam ◽  
Electric Quadrupole ◽  
Final States ◽  
Angular Correlations ◽  
Mixing Ratios ◽  
Triple Correlation

The Mg26(He4, nγ)Si29 reaction has been used to illustrate the simplifications introduced in the interpretation of triple angular correlations by choosing a target and bombarding particles of zero spin and by observing the emitted particles, in this case neutrons, in a counter fixed at 0° to the beam. The angular correlations of the gamma rays with respect to the incident beam then depend only upon the properties of the final states in the residual nucleus. The angular correlation of the electric quadrupole 2.03-Mev gamma ray is predicted uniquely by theory and this prediction has been verified experimentally. The angular correlations of the 1.28-Mev and 2.43-Mev gamma rays have yielded for the E2/M1 amplitude mixing ratios +0.25 ± 0.05 or −3.4 ± 0.5 and −0.26 ± 0.08 or −1.10 ± 0.16 respectively. In addition, the experiment provides an illustration of the value of the recently discovered technique of neutron – gamma-ray discrimination in an organic scintillator.

Spin determination via α-d angular correlations and α-transfer DWBA analysis in 18F high-energy states

1983 ◽  
Vol 402 (1) ◽  
pp. 87-113 ◽  
Author(s):  
M.C. Etchegoyen ◽  
D. Sinclair ◽  
A. Etchegoyen ◽  
E.Belmont Moreno
Keyword(s):  
High Energy ◽  
Angular Correlations ◽  
Dwba Analysis ◽  
Energy States ◽  
Spin Determination

Level structure of 35Cl from the 32S(α,pγ)35Cl reaction

1970 ◽  
Vol 48 (10) ◽  
pp. 1259-1269 ◽  
Author(s):  
B. W. Hooton ◽  
O. Häusser ◽  
F. Ingebretsen ◽  
T. K. Alexander
Keyword(s):  
Excitation Energy ◽  
Level Structure ◽  
Branching Ratios ◽  
The Other ◽  
Mixing Ratios ◽  
Γ Ray ◽  
Four Levels

Proton–gamma coincidences from the reaction 32S(α,pγ)35Cl at Eα = 10.975, 11.960, and 12.120 MeV have been measured, using method II of Litherland and Ferguson. Twelve previously unreported levels between 3.94 and 6.40 MeV excitation energy have been found. The spins of four levels, 1.763 (5/2), 2.646 (7/2), 3.945 (9/2), and 4.885 (7/2), have been determined. Possible spins have been assigned to 12 of the other levels. Branching ratios and γ-ray multipole mixing ratios for all the levels studied are given.

scholarly journals Precision branching-ratio measurements in $$^{18}$$O

2021 ◽  
Vol 57 (4) ◽  
Author(s):  
S. Pirrie ◽  
C. Wheldon ◽  
Tz. Kokalova ◽  
J. Bishop ◽  
Th. Faestermann ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Branching Ratio ◽  
High Energy ◽  
Branching Ratios ◽  
Monte Carlo Techniques ◽  
Energy States

AbstractAn experiment has been performed utilising the $$^{12}$$ 12 C($$^{7}$$ 7 Li,p)$$^{18}$$ 18 O reaction to populate high-energy states in $$^{18}$$ 18 O. Using the Munich Q3D magnetic spectrograph in conjunction with the Birmingham large-angular-coverage DSSD array, branching ratios have been measured for over fifty states in $$^{18}$$ 18 O, investigating the $$\alpha $$ α -decay, n-decay, 2n-decay and $$\gamma $$ γ -decay branches. In tandem, Monte-Carlo techniques have been used to identify and separate features.

EXCITED STATES OF 11C FROM n–γ ANGULAR CORRELATK AND GAMMA BRANCHING RATIOS

1966 ◽  
Vol 44 (6) ◽  
pp. 1213-1223 ◽  
Author(s):  
A. S. Rupaal ◽  
B. L. White ◽  
J. R. Prescott
Keyword(s):  
Experimental Study ◽  
Excited States ◽  
Ground State ◽  
Gamma Ray ◽  
High Energy ◽  
Branching Ratios ◽  
Intermediate Coupling ◽  
Angular Correlations ◽  
Gamma Transitions ◽  
Bombarding Energy

An experimental study of excited states of 11C below 6.5 MeV has been made using the 10B (d, nγ)11C reaction at a deuteron bombarding energy of 0.8 MeV. Measurements were made of the n–γ angular correlations of the ground-state gamma transitions from the 6.49- and 4.32-MeV levels, and of the gamma-ray branching ratios from the 6.49-, 4.81-, and 4.32-MeV levels.Theoretical analysis of the n–γ angular correlations suggests that the J values of the 6.49- and 4.32-MeV levels are (3/2), (5/2), or (7/2). The parities of all the states observed in this experiment are already known to be negative from high-energy stripping data. A comparison of the experimental branching ratios with theoretical branching ratios predicted by the intermediate coupling shell model is consistent with the following spin and parity assignments in 11C: ground state (3/2)−, 2.00 MeV (1/2)−, 4.32 MeV (5/2)−, 4.81 MeV (3/2)−, and 6.49 MeV (7/2)−.

scholarly journals Upconversion emissions from high-energy states of Eu^3+ sensitized by Yb^3+ and Ho^3+ in β-NaYF_4 microcrystals under 980 nm excitation

2011 ◽  
Vol 19 (25) ◽  
pp. 25471 ◽  
Author(s):  
Lili Wang ◽  
Zhenyu Liu ◽  
Zhe Chen ◽  
Dan Zhao ◽  
Guanshi Qin ◽  
...  
Keyword(s):  
High Energy ◽  
Energy States ◽  
Upconversion Emissions

scholarly journals RENORMALIZATION GROUP EVOLUTION OF MULTI-GLUON CORRELATORS IN HIGH ENERGY QCD

2012 ◽  
Vol 20 ◽  
pp. 214-221
Author(s):  
JAMAL JALILIAN-MARIAN
Keyword(s):  
Particle Production ◽  
High Energy ◽  
Forward Rapidity ◽  
Proton Proton ◽  
Proton Collisions ◽  
Angular Correlations ◽  
Energy Proton ◽  
Group Evolution ◽  
Proton Proton Collisions ◽  
Made In

Forward rapidity di-hadron azimuthal angular correlations in high energy proton-nucleus and proton-proton collisions are sensitive to quadrupoles; traceless correlator of 4 Wilson lines whereas single inclusive particle production iNVOLVES only dipoles, traceless correlator of 2 Wilson lines. We discuss the progress made in understanding the energy (rapidity) evolution of the quadrupole as well as its various limits.

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