Positron annihilation in a strong magentic field.
Positron annihilation in a strong magentic field.
Positron annihilation in a strong magentic field.
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Strong magnetice <strong>field</strong>, it means close to the value<br />
equal to:<br />
B<br />
c<br />
3 2<br />
0<br />
13<br />
0<br />
≡ = 4.414×<br />
10 G<br />
e<br />
m<br />
<br />
In that <strong>field</strong> several <<strong>strong</strong>>in</<strong>strong</strong>>terest<<strong>strong</strong>>in</<strong>strong</strong>>g phenomena occur:<br />
- the electron mas is affected by the <strong>strong</strong> magnetic <strong>field</strong>,<br />
as B <<strong>strong</strong>>in</<strong>strong</strong>>creases first it is gett<<strong>strong</strong>>in</<strong>strong</strong>>g slightly lower than m 0<br />
,<br />
then slightly higher.<br />
-magneic <strong>field</strong> distorts atoms <<strong>strong</strong>>in</<strong>strong</strong>>to long, th<<strong>strong</strong>>in</<strong>strong</strong>> cyl<<strong>strong</strong>>in</<strong>strong</strong>>ders and<br />
molecules <<strong>strong</strong>>in</<strong>strong</strong>>to <strong>strong</strong>, polymer-like cha<<strong>strong</strong>>in</<strong>strong</strong>>s.<br />
-photons can rapidly split and merge with each other.<br />
- vacuume itself is unstable, at extremely large B~10 51 -10 53 G.<br />
Duncan, arXiv:astro-ph/0002442v1 (2000)<br />
2/37
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