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Atomic Masses and Other Nuclear Ground State Parameters
(Original file name CENPL.MCC-1.1, provided by Z. Su, 20 August 1995)
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ATOMIC MASSES AND CHARACTERISTIC CONSTANTS OF NUCLEAR GROUND STATES
(CENPL.MCC-1.1)
Su Zongdi Sun Zhengjun Ma Lizhen
China Institute of Atomic Energy,P.O.BOX 275-41,Beijing,P.R.CHINA
(20 August 1995)
This is the version 1.1 of the sub-library of atomic masses and charac-
teristic constants of nuclear ground states (MCC), which is a part of the
Chinese Evaluated Nuclear Parameter Library (CENPL).
Contents
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The MCC data file contains measured [1] and systematics [1] mass excesses,
atomic masses, total binding energies in most cases, and calculated
ones [ 2,3], the half-lives [4], abundance [5], spins and parities [4] of
nuclear ground states, etc. for 4771 nuclides ranging from Z=0, A=1 to
Z=122 , A=318. Most of these data were took from Refs. [1-5] , few of
them were collected and compiled by us.
Format
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Each record of the file contains Z, EL, A, ME, M, B and T/2 or AB, J and P.
Z : Charge number, column 1-3.
EL : Element symbol, column 5-6.
A : Mass number, column 8-10.
ME : Mass excess M-A and its uncertainty, column 13-28.
Most of mass excesses (for 2650 nuclides) were from the experimental
and systematics data compiled by G.Audi and A.H.Wapstra in
1993 [1]. An appended "s" denotes that the value is systematics
one. Others (for 2120 nuclides) are the calculated ones denoted
by an appended "t",which were calculated by P. Moller, J.R. Nix,
W.D. Myers and W.J. Swiatecki in 1994 [2] and by P. Moller, W. J.
Swiatecki and J. Treiner in 1991 [3] (for 181 nuclides) by using
a nuclear mass formula with a finite-range droplet macroscopic
model and the folded-Yukawa single-particle microscopic model .
The few were collected and evaluated by us.
M : Atomic mass and its uncertainty, column 31-48.
Most of M values are from Ref. [1] , those denoted "t" were derived
from ME values calculated in Refs. [2,3].
B : Total binding energy, column 51-60.
Most of B values are from Ref. [1] , those denoted "t" were derived
from ME values calculated in Refs. [2,3].
T/2 or AB: Half-life and abundance, column 63-80.
These data are given followed by units ("%" symbol in case of
abundance) which are followed by the uncertainty . For some very
short-lived nuclei, level widths rather than half-lives are given.
There also, the width is followed by units (e.g. eV, keV or MeV)
which are followed by the uncertainty if known.
J, P: Spin and parity of nuclear ground state, column 83-92.
References
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[1] G.Audi and A.H.Wapstra, Nucl. Phys., A565, 1 and 66(1993).
[2] P.Moller, J.R. Nix, W.D. Myers and W.J.Swiatecki, Atomic Data
to be published. Note added by the editor: published in Atomic Data
and Nuclear Data Tables, Vol. 59 (1985) 185-383.
[3] P.Moller, W.D.Myers, W.J.Swiatecki and J. Treiner, Atomic Data
and Nucl. Data Tables, Vol. 39(1988)225. (File as of 1991).
[4] Evaluated Nuclear Structure Data File - a computer file of evalua-
ted experimental nuclear structure data maintained by the National
Nuclear Data Center, Brookhaven National Laboratory. (File as of
March 1991).
[5] N.E.Holden, Table of the Isotopes, 7-th edition (1990).