AUDI_95.readme
Audi & Wapstra's Recommended Masses, Version 1995
(Original file name mass_rmd.mas95)
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Reproduced below is a part of the original readme file by Audi & Wapstra.
More detailed information is available from the Atomic Mass Data Center:
1) by accessing anonymous ftp to: csnftp.in2p3.fr, in directory /pub/AMDC
2) or through the Web at the address http://csnwww.in2p3.fr/amdc/.
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A T O M I C M A S S E V A L U A T I O N
********* A - GENERAL INFORMATION *********
********* A - GENERAL INFORMATION *********
(November 21, 1995)
I - INTRODUCTION
The table of masses and the table of nuclear reaction and
separation energies resulting from the evaluation published
in:
-------------------------------------------------
| "THE 1995 UPDATE TO THE ATOMIC MASS EVALUATION" |
| |
| (Ame'95) |
| |
| by G. Audi and A.H. Wapstra |
| |
| Nuclear Physics A595 (1995) 409-480. |
| |
| (December 25, 1995) |
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are available electronically at the ``Atomic Mass Data
Center" (AMDC) and at the Nuclear Data Centers.
Six files from this evaluation can be obtained:
mass_rmd.mas95 Recommended masses
rct1_rmd.mas95 Recommended reaction energies, table 1
rct2_rmd.mas95 Recommended reaction energies, table 2
mass_exp.mas95 Experimental masses
rct1_exp.mas95 Experimental reaction energies, table 1
rct2_exp.mas95 Experimental reaction energies, table 2
Most readers can best use the set of recommended tables
(labelled with `rmd') whereas the more specialized user
could with benefit analyze the second set (with label
`exp').
The first file, mass_rmd.mas95, contains the table of masses
as printed in the reference above, plus the binding
energies, the beta-decay energies and the atomic masses.
The next two files correspond to the table of reaction and
separation energies (cf. "The 1993 Atomic Mass Evaluation",
part II) in two parts of 6 entries each:
rct1_rmd.mas95 for S2n, S2p, Q(a), Q(2B), Q(ep), Q(B-n)
rct2_rmd.mas95 for Sn, Sp, Q(4B), Q(d,a), Q(p,a), Q(n,a)
The last three files with names mass_exp.mas95,
rct1_exp.mas95 and rct2_exp.mas95 are identical to the first
three files except for the values resulting from the use of
the few deviating experimental data, listed in Table~B of
Ame'93 and updated in Table~IV-a of Ame'95.
Values in these files are exact (unrounded) copy of the
published ones.
* They can conveniently be used for calculations.
* They should not be copied in a publication as given in
these files, but instead, rounded values, as published
in the above Journal should be used.
II - VALUES FOR THE MOST PRECISE CALCULATIONS:
a - values for the most precise masses:
Mass excess (keV) Atomic mass (micro-u)
1 n 8071.32281 0.00215 1008664.92326 0.00221
1 H 7288.96940 0.00064 1007825.03214 0.00035
2 H 13135.71961 0.00104 2014101.77799 0.00036
3 H 14949.79417 0.00149 3016049.26753 0.00106
3 He 14931.20356 0.00138 3016029.30970 0.00086
4 He 2424.91109 0.00095 4002603.24968 0.00100
13 C 3125.01081 0.00095 13003354.83780 0.00099
14 C 3019.89233 0.00374 14003241.98845 0.00400
14 N 2863.41701 0.00083 14003074.00524 0.00086
15 N 101.43823 0.00085 15000108.89844 0.00092
16 O -4736.99828 0.00147 15994914.62211 0.00153
20 Ne -7041.92974 0.00192 19992440.17589 0.00198
28 Si -21492.79309 0.00244 27976926.53273 0.00196
40 Ar -35039.88974 0.00387 39962383.12324 0.00305
b - values for the correlation coefficients (in nano-amu**2)
n H D 3H 3He 4He
4.899380
-0.083048 0.123414
0.092465 0.040200 0.132764
0.014840 -0.000165 0.014699 1.114100
0.006104 0.002664 0.008774 0.446509 0.733021
-0.000036 0.000001 -0.000001 0.000000 0.000000 0.999982
III - FORMAT:
All files are 2931 lines long with 124 character per line
(originally in fixed format). Headers are 39 lines long.
Record Format:
1 - For mass-files:
Column Format Quantity
1:1 a1 fortran control character (a)
2:4 i3 N-Z neutron excess
5:9 i5 N neutron number
10:14 i5 Z atomic number
15:19 i5 A mass number
20:20 1x
21:23 a3 Chem Symbol
24:27 a4 origin
28:28 1x
29:39 f11.3 mass
40:48 f9.3 mass accuracy
49:59 f11.3 binding energy
60:68 f9.3 binding energy accuracy
69:72 4x
73:74 a2 B+ or B-
75:85 f11.3 beta decay energy
86:94 f9.3 beta decay energy accuracy
95:96 2x
97:110 i3,1x,f10.3 atomic_mass
111:119 f9.3 atomic mass accuracy
2 - For rct-files :
Column Format Quantity
1:1 a1 fortran control character (a)
2:4 i3 A mass number
5:5 1x
6:8 a3 Chem Symbol
9:11 i3 Z atomic number
12:12 1x
13:30 f10.2,f8.2 energy 1, accuracy 1
31:48 f10.2,f8.2 energy 2, accuracy 2
49:66 f10.2,f8.2 energy 3, accuracy 3
67:84 f10.2,f8.2 energy 4, accuracy 4
85:102 f10.2,f8.2 energy 5, accuracy 5
103:120 f10.2,f8.2 energy 6, accuracy 6
Notes:
a- Fortran control character: 1 = page feed
0 = line feed
b- decimal point is replaced by # for values derived from
systematical trends (see publications).
c- * in place of value means `not calculable'
IV - CORRECTIONS AND SUGGESTIONS
If you find errors or omissions in the present
documentation, or, if you have a suggestion to make it
clearer, please send a message to the following electronic
address. Thanks in advance.
internet : audi@frcpn11.in2p3.fr
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