Document Detail

Observing Light-by-Light Scattering at the Large Hadron Collider.
MedLine Citation:
PMID:  24010419     Owner:  NLM     Status:  In-Data-Review    
Elastic light-by-light scattering (γγ→γγ) is open to study at the Large Hadron Collider thanks to the large quasireal photon fluxes available in electromagnetic interactions of protons (p) and lead (Pb) ions. The γγ→γγ cross sections for diphoton masses m_{γγ}>5  GeV amount to 12 fb, 26 pb, and 35 nb in p-p, p-Pb, and Pb-Pb collisions at nucleon-nucleon center-of-mass energies sqrt[s_{NN}]=14, 8.8, and 5.5 TeV, respectively. Such a measurement has no substantial background in Pb-Pb collisions where one expects about 20 signal events per run, after typical detector acceptance and reconstruction efficiency selections.
David d'Enterria; Gustavo G da Silveira
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Publication Detail:
Type:  Journal Article     Date:  2013-08-22
Journal Detail:
Title:  Physical review letters     Volume:  111     ISSN:  1079-7114     ISO Abbreviation:  Phys. Rev. Lett.     Publication Date:  2013 Aug 
Date Detail:
Created Date:  2013-09-09     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401141     Medline TA:  Phys Rev Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  080405     Citation Subset:  IM    
Physics Department, CERN, 1211 Geneva, Switzerland.
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