TUNL Nuclear Data
Evaluation Home Page

Information on mass
chains and nuclides
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
Group Info
General Tables
Level Diagrams
Tables of EL's
NSR Key# Retrieval
Excitation Functions
Thermal N Capt.
G.S. Decays
Half-Lives Table
TUNL Dissertations
NuDat at BNL
Useful Links
Citation Examples
Email Us



20N (1998TI06)

(Not illustrated)

20N is particle stable. Its atomic mass excess is 21.770 ± 0.050 MeV (1995AU04). It has been observed in heavy-ion transfer (1989OR03) and projectile fragmentation reactions (1987GI05, 1988DUZT, 1988MU08, 1990MU06, 1991OR01) and in target fragmentation reactions (1988WO09, 1991RE02, 1993WOZZ). See also the review (1988VIZP). Mass measurements were reported in (1987GI05, 1988WO09, 1989OR03, 1991OR01, 1993WOZZ). Nuclear matter rms radii have been derived from measurements of interaction cross sections of 20N on carbon by (1995CH1X, 1996CH24, 1996KR1A). Measurements of beta-delayed neutron emission are described in (1988DUZT).

The half-life of 20N is 70 ± 40 ms (1988DUZT), 100+30-20 ms (1988MU08, 1990MU06), 142 ± 19 ms (1991RE02).

The delayed neutron probability is 53+11-7% (1988MU08, 1990MU06), 66.1 ± 5.0% (1991RE02). See also (1987BAZI, 1987DE1O, 1987DUZU, 1987SIZX, 1989HU1E, 1993REZX).

A review of the production of nuclei far from stability is presented in (1989VOZM). Production mechanisms are discussed in (1988BAYZ). Predictions of beta-decay half-lives are described in (1990ST08). Results of shell model calculations related to exotic light nuclei are discussed in (1992WA22, 1993PO11). Bulk properties have been calculated with relativistic mean field theory in (1993PA14).