Isolated double prompt photon production at CDF
Conference
·
OSTI ID:10117819
We present a measurement of the cross section for production of two isolated prompt photons in p{bar p} collisions at {radical}s = 1.8 TeV. The cross section, measured as a function of transverse momentum (PT) of each photon, is roughly three times what full QCD calculations predict. Calculations that only include the Born and box diagrams, which are commonly used to estimate the prompt diphoton background to Higgs decay at future hadron colliders, are lower than our measurement by roughly ii factor of five. We also study variables sensitive to K{sub T}: the transverse momentum of initial state partons. The vector sum of the transverse momenta of both photons, K{sub T} = {vert_bar}{rvec P}{sub T1} + {rvec P}{sub T2}{vert_bar}, is compared to previous measurements at lower collision energies, and we find a roughly logarithmic increase with {radical}s. The measured mean value is < K{sub T} >= 5.1 {plus_minus} 1.1 GeV at {radical}s = 1.8 TeV.
- Research Organization:
- Fermi National Accelerator Lab., Batavia, IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC02-76CH03000
- OSTI ID:
- 10117819
- Report Number(s):
- FNAL/C--92/317-E; CONF-921122--18; ON: DE93005671; IN: CDF/PUB/JET/PUBLIC/1877
- Country of Publication:
- United States
- Language:
- English
Similar Records
Isolated double prompt photon production at CDF
Measurement of the isolated prompt photon cross section in p p collisions at radical s =1. 8 TeV
QCD physics at CDF
Conference
·
Tue Nov 03 23:00:00 EST 1992
·
OSTI ID:7177715
Measurement of the isolated prompt photon cross section in p p collisions at radical s =1. 8 TeV
Journal Article
·
Mon May 04 00:00:00 EDT 1992
· Physical Review Letters; (United States)
·
OSTI ID:7106308
QCD physics at CDF
Technical Report
·
Fri May 01 00:00:00 EDT 1992
·
OSTI ID:10161484