| Hauptseite > A measurement of direct photon production at large p/sub T/ at the CERN ISR |
| Article | |
| Title | A measurement of direct photon production at large p/sub T/ at the CERN ISR |
| Author(s) | Diakonou, M ; Cnops, A M ; Fabjan, Christian Wolfgang ; Fields, T ; Filippas-Tassos, A ; Fokitis, E ; Fowler, E C ; Hood, D M ; Kourkoumelis, C ; Lissauer, D ; Mannelli, I ; Molzon, W ; Mouzourakis, P ; Palmer, R B ; Rahm, David Charles ; Rehak, P ; Resvanis, L K ; Stumer, I ; Trakkas, C ; Willis, W J |
| Affiliation | (Athens Univ, Athens, Greece) |
| Publication | 1980 |
| In: | Phys. Lett. B 91, 2 (1980) pp.296-300 |
| Subject category | Particle Physics - Phenomenology |
| Abstract | The authors have measured direct photon production in pp collisions at the CERN intersecting storage rings for c.m. energies 31< square root s<63 GeV and transverse momenta up to 9 GeV/c, using segmented lead /liquid-argon calorimeters. The ratio of direct photon to pi /sup 0/ production is significantly larger than zero, starting at p/sub T/ approximately=4 GeV/c and increasing to values of about 0.4 at 9 GeV /c. No significant square root s dependence is seen. (14 refs). |