Direct-annihilation fraction of positrons in a neutral low-density galactic environment

Details Direct-annihilation fraction of positrons in a neutral low-density galactic environment Direct-annihilation fraction of positrons in a neutral low-density galactic environment

Apr 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986phrva..33.2281b&link_type=abstract

Physical Review A - General Physics, 3rd Series (ISSN 0556-2791), vol. 33, April 1986, p. 2281-2283.

Physics

General Physics

20

Interstellar Gas, Neutral Gases, Positron Annihilation, Helium, Hydrogen, Line Spectra, Positronium

Scientific paper

The fraction of positrons which survive below the positronium (Ps) formation energy in a low-density galactic environment can directly annihilate with bound electrons in the gas. The details of the measurement of the survival (direct-annihilation) fraction using a low-energy laboratory positron beam are presented for H2 and H3. The fraction is found to be higher in H2 than had been predicted by Bussard, Ramaty, and Drachman (1979). The galactic positron line has been shown to be consistent with the line shape expected for annihilation in a neutral medium based on this measurement and on a theoretical prediction of the direct-annihilation linewidth.

Affiliated with

Also associated with

No associations

Rating

Direct-annihilation fraction of positrons in a neutral low-density galactic environment does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Direct-annihilation fraction of positrons in a neutral low-density galactic environment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Direct-annihilation fraction of positrons in a neutral low-density galactic environment will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1103633