Isobarisch analoge Zustände in 145Eu

Excitation functions for the elastic proton scattering from the target nucleus 144Sm have been measured in the energy-range from 8.600 to 11.600 MeV at six different scattering angles. Strong resonances were observed in the highly excited compound nucleus 145Eu, which are the isobaric analogues to the low-lying states of 145Sm. The resonances have been interpreted as BREIT-WIGNER resonances, superimposed on a smoothly varying background. The analysis was carried out in terms of a single level approximation. Energies, l-values, and widths of these resonances have been determined, and are compared with corresponding results of (d, p) -experiments.

Download Full-text

Gamma-ray production in the 170Er(p,n)170Tm nuclear reaction

Open Physics ◽

10.2478/s11534-009-0157-y ◽

2010 ◽

Vol 8 (4) ◽

Author(s):

Alexandru Mihailescu ◽

Gheorghe Cata-Danil

Keyword(s):

High Resolution ◽

Energy Range ◽

Nuclear Reaction ◽

Gamma Rays ◽

Compound Nucleus ◽

Beam Energy ◽

Gamma Ray ◽

Excitation Functions ◽

Γ Ray ◽

First Time

AbstractFor the first time discrete gamma-rays following the nuclear reaction 170Er(p,n)170Tm with enriched target were measured with a high resolution GeHP spectrometer. Protons delivered by the Bucharest FN Tandem Van de Graaff accelerator bombarded a thin self-supporting film of enriched erbium. Measured γ-ray energies (Eγ), their relative intensities (Iγ) and corresponding excitation functions for the beam energy range 2.0–3.6 MeV are reported in the present work. The measured excitation functions were fairly well reproduced by compound nucleus calculations based on the Hauser-Feshbach formalism.

Download Full-text

MEASUREMENT AND ANALYSIS OF EXCITATION FUNCTIONS FOR ALPHA-INDUCED REACTIONS IN BISMUTH

International Journal of Modern Physics E ◽

10.1142/s0218301392000357 ◽

1992 ◽

Vol 01 (04) ◽

pp. 823-831 ◽

Cited By ~ 5

Author(s):

B. P. SINGH ◽

M. G. V. SANKARACHARYULU ◽

M. A. ANSARI ◽

R. PRASAD ◽

H. D. BHARDWAJ

Keyword(s):

Energy Range ◽

Compound Nucleus ◽

Projectile Energy ◽

Exciton Model ◽

Excitation Functions ◽

Model Calculations ◽

Stacked Foil Technique ◽

Measurement And Analysis ◽

Foil Technique

Excitation functions for 209 Bi (α, 3n), 209 Bi (α, 4n) and 209 Bi (α, 5n) reactions have been measured in the energy range threshold to ≈50 MeV using stacked foil technique. Excitation functions have also been theoretically calculated and as expected, inclusion of pre-equilibrium contribution based on exciton model calculations along with compound nucleus calculations using Hauser–Feshbach formalism reproduces well the measured excitation functions. Interesting trend in the ratio of pre-equilibrium to equilibrium component with projectile energy has been observed.

Download Full-text

ELASTIC PROTON-PROTON SCATTERING AT GEV ENERGIES: ANALYZING POWERS ANAND SPIN CORRELATION PARAMETERS ANN, ASS, AND ASL

International Journal of Modern Physics A ◽

10.1142/s0217751x05023736 ◽

2005 ◽

Vol 20 (08n09) ◽

pp. 1959-1962

Author(s):

◽

F. HINTERBERGER ◽

K. O. EYSER

Keyword(s):

Phase Shift ◽

Spin Correlation ◽

Meson Exchange ◽

Proton Scattering ◽

Excitation Functions ◽

Proton Proton ◽

Analyzing Powers ◽

Elastic Proton ◽

Correlation Parameters ◽

Spin Correlation Parameters

The analyzing powers ANand spin correlation parameters ANN, ASS, and ASLof the elastic proton-proton scattering have been measured with an internal polarized atomic beam target at the cooler synchrotron COSY. Excitation functions were taken continuously during the acceleration and deceleration of the internal beam for kinetic energies ranging between 0.45 and 2.5 GeV and scattering angles 30°≤Θc.m.≤90°. The analyzing power excitation functions provide a new polarization standard in the GeV region. The spin correlation data on ASSdisagree strikingly with existing phase shift solutions. The addition of the new polarization data to the world database removes some of the ambiguities in the phase shift solutions and the direct reconstruction of scattering amplitudes. The data are compared with a recent extension of a meson-exchange potential model to higher energies.

Download Full-text

Elastic proton-proton scattering: Excitation functions from 0.45 to 2.5 GeV

Progress in Particle and Nuclear Physics ◽

10.1016/s0146-6410(03)00048-6 ◽

2003 ◽

Vol 50 (2) ◽

pp. 537-546

Author(s):

F. Hinterberger ◽

F. Bauer ◽

J. Bisplinghoff ◽

K. Büβer ◽

M. Busch ◽

...

Keyword(s):

Proton Scattering ◽

Excitation Functions ◽

Proton Proton ◽

Elastic Proton

Download Full-text

Excitation functions of the analyzing power in elastic proton-proton scattering from 0.45 to 2.5 GeV

The European Physical Journal A ◽

10.1140/epja/i2004-10081-1 ◽

2004 ◽

Vol 23 (2) ◽

pp. 351-364 ◽

Cited By ~ 30

Author(s):

M. Altmeier ◽

F. Bauer ◽

J. Bisplinghoff ◽

K. Büßer ◽

M. Busch ◽

...

Keyword(s):

Proton Scattering ◽

Excitation Functions ◽

Proton Proton ◽

Elastic Proton ◽

Analyzing Power

Download Full-text

MICROSCOPIC APPROACH TO SCATTERING OF UNSTABLE NUCLEI

Modern Physics Letters A ◽

10.1142/s0217732310000253 ◽

2010 ◽

Vol 25 (21n23) ◽

pp. 1754-1758

Author(s):

MASANOBU YAHIRO ◽

KOSHO MINOMO ◽

KAZUYUKI OGATA ◽

YOSHIFUMI R. SHIMIZU ◽

TAKUMA MATSUMOTO ◽

...

Keyword(s):

Energy Range ◽

Incident Energy ◽

Optical Potential ◽

Recent Progress ◽

Proton Scattering ◽

Microscopic Approach ◽

Unstable Nuclei ◽

Coupled Channels ◽

Localized Form

This article is composed of three subjects. First, the relation between the method of continuum-discretized coupled channels (CDCC) and the Faddeev theory is clarified to show the validity of CDCC. Second, CDCC is applied to four-body reactions such as (6 He , nn 4 He ) as an example of recent progress in CDCC. Third, we propose a microscopic version of CDCC in which a localized form of the microscopic nucleon-nucleus optical potential is used as an input of CDCC calculation instead of the phenomenological optical potential commonly used. The validity of the Brieva-Rook localization is shown for the proton scattering in a wide incident-energy range.

Download Full-text