If Atomic Number is 24 & m = 0, then find total number of e-?
-Defineis moinical formula & Molecular formula What is relations
Answers
Answer:
If Atomic Number is 24 & m = 0, then find total number of e-?
-Defineis moinical formula & Molecular formula What is relations
Explanation:
Nucl. Struct, and Reactions 5
DSAM lifetimes in the doubly odd nucleus
134Pr
M.N. Rao1
, R.V. Ribas1
, N.H. Medina1
, F.R. Espinoza-Quinones2
, M.A. Rizzutto1
, E.W. Cybulska1
,
J.R.B. Oliveira1
, D. Bazzacco3
, S. Lunardi3
, CM. Petrache3
, Zs. Podolyak3
, C. Rossi Alvarez3
, T. Scanferla3
,
CA. Ur3
, R. Venturelli4
, D. De Acuiia4
, G. de Angelis4
, M. De Poli4
, E. Farnea4
, A. Gadea4
, D.R. Napoli4
,
L.H. Zhu4
, A. Dewald5
, J. Gableske5
and P. von Brentano5
.
1
Institute) de Fisica, Universidade de Sao Paulo, Sao Paulo, Brazil
2
Departamento de Fisica - CCE, Universidade Estadual de Londrina, Londrina, PR, Brazil
3
Dipartimento de Fisica and INFN, Sezione di Padova, Padova, Italy
4
INFN, Laboratori Nazionali di Legnaro, Legnaro, Italy
5
Institut fur Kernphysik der Universitdt zu Koln, Kb'ln, Germany
Information on highly deformed rotational bands in the doubly odd
134Pr nucleus has become
available quite recently [1,2]. One of these bands has been tentatively assigned a 7r(hu/2)3
<S> ^(^7/2)^/2)
configuration, while the other band is thought to have the 7r(hn/2)3
<S> ^113/2 configuration. Thus one
would expect the latter band to have a more deformed nuclear shape.
The present note reports on a Doppler broadened lineshape lifetime measurement in this nucleus.
The rotational bands in
134Pr were populated by bombarding a Au-backed
110Pd target with 130 MeV
28Si beam provided by the XTU tandem accelerator of the Legnaro National Laboratory. The GASP
array, BGO inner ball and the multi-telescope particle detector ball (ISIS) were utilized in order to select
the proton gated events. Data were of sufficiently good statistics to obtain clean gated spectra for the
positive parity E2 band. The Doppler broadened lineshapes for a cascade of 6 transitions in this band
were fitted for 5 of the 7 rings of detectors (36°, 60°, 90°, 120° and 146°) in the GASP array. The analysis
of data was performed with the computer code LINESHAPE [3], assuming rotational-band side feeding
for each of the levels of interest. The slowing down of the Pr recoiling nuclei was described with two sets
of electronic stopping, viz., shell-corrected Northcliffe-Schilling and Ziegler's heavy-ion stopping powers.
Fig.l shows examples of the resulting line-shape fits at forward and backward angles. The best estimates
for the in-band Qt values from the present work are shown in Fig.2. A linear fit to the resulting Q« values
and the 67 % confidence limits are also shown in this figure.
The negative-parity E2 band is weaker in intensity and the proton-gated data are not of sufficient
statistical quality. We will attempt to study this band using the centroid shift method, employing ring