$$\pi^0$$ Production at High Transverse Momenta from $$\pi^-$$ Collisions at 520-GeV/c on Be and Cu Targets
- Univ. of Rochester, NY (United States)
The inclusive $$\pi^0$$ cross section in 520 GeV/c $$\pi^-$$ Be and $$\pi^-$$ Cu interactions has been measured as a function of transverse momentum and rapidity, using the E706 spectrometer at FNAL. The production of $$\pi^0$$ s was studied using = 5.2 events/pb of $$\pi^-$$ Be data and = 0.84 events/pb of $$\pi^-$$ Cu data collected during the 1990 run of the E706 experiment. This data sample represents an order of magnitude increase in statistics over the data recorded during the initial run of the experiment in 1988. The $$\pi^0$$ decay photons were detected by a finely segmented liquid argon electromagnetic calorimeter. The $$\pi^0$$ cross section was measured for transverse momenta between 3.5 and 10 GeV/c and rapidities between -0.75 and 0.75. From the data on Be and Cu, we have extracted the nuclear dependence of $$\pi^0$$ production. The measurements are compared with earlier results, as well as with recent next-to-leading-log calculations from Quantum Chromodynamics (QCD).
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1374862
- Report Number(s):
- FERMILAB-THESIS-1994-65; UMI-94-25664; 384429
- Country of Publication:
- United States
- Language:
- English
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