Large momentum transfer proton-proton elastic scattering at 201 and 400 GeV/c
Proton-proton elastic scattering has been measured for 4.9 < -t < 12.1 GeV/sup 2/ at 201 GeV/c and 5.4 < -t < 14.4 GeV/sup 2/ at 400 GeV/c. The experiment was performed with a hydrogen target and a double arm spectrometer located in the Proton West extracted proton beamline at Fermilab. At both 201 and 400 GeV/c, the observed cross sections decrease smoothly with /t/, showing no indication of the second dip predicted by some diffraction models. If the data are fit to an exponential of the form e/sup At/, the parameter A is found to decrease from 1.5 to 0.8 GeV/sup -2/ over our t-range, these values being substantially smaller than the diffraction model predictions for A approx. 5 to 6 GeV/sup -2/. At fixed t, the 201 GeV/c cross sections are larger by approx. 2.3 than those at 400 GeV/c. The energy dependence at fixed theta/sub cm/ (or fixed t/s) is consistent with the form s/sup -9/ /sup 6/, in approximate agreement with the s/sup -10/ prediction of some constituent models.
- Research Organization:
- Cornell Univ., Ithaca, NY (USA)
- OSTI ID:
- 5445547
- Resource Relation:
- Other Information: Thesis (Ph. D.)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
PROTON-PROTON INTERACTIONS
ELASTIC SCATTERING
CROSS SECTIONS
ENERGY DEPENDENCE
FERMILAB ACCELERATOR
GEV RANGE 100-1000
MOMENTUM TRANSFER
SPECTRA
ACCELERATORS
BARYON-BARYON INTERACTIONS
CYCLIC ACCELERATORS
ENERGY RANGE
GEV RANGE
HADRON-HADRON INTERACTIONS
INTERACTIONS
NUCLEON-NUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PROTON-NUCLEON INTERACTIONS
SCATTERING
SYNCHROTRONS
645101* - High Energy Physics- Particle Interactions & Properties-Experimental- Electromagnetic Interactions & Properties