We have over 12,000 students, from over 100 countries, within one of the safest campuses in the UK


97% of Lancaster students go into work or further study within six months of graduating

Home > Research > Publications & Outputs > Production of spin 3/2 particles from vacuum fl...
View graph of relations

« Back

Production of spin 3/2 particles from vacuum fluctuations

Research output: Contribution to journalJournal article


<mark>Journal publication date</mark>21/02/2000
<mark>Journal</mark>Physical Review Letters
Number of pages4
<mark>Original language</mark>English


We study the production of spin 3/2 particles in homogeneous scalar and gravitational backgrounds from the mode-mixing Bogolyubov method. Considering only helicity $\pm 3/2$ states we can reduce the problem to a standard Dirac fermion calculation and apply the standard techniques in a straightforward way. As an example we consider a supergravity inflationary model and calculate the spectrum of gravitinos created during preheating at the end of inflation.

Bibliographic note

© 2000 The American Physical Society 4 pages, RevTeX, 1 figure. New comments and references added. Final version to appear in Phys.Rev.Lett