Photopion Production from Deuterium Near Threshold |
From inside the book
Results 1-5 of 18
Page 3
... Weighting of 2 - Prong Events 83 84 K. Results of the Event Analysis VI : Results 87 + A. The σ / o Ratio from Deuterium 87 1 . Pion energies and angles included 87 2 . Positive pions 89 3 Three - prong negative mesons 90 4 . Two ...
... Weighting of 2 - Prong Events 83 84 K. Results of the Event Analysis VI : Results 87 + A. The σ / o Ratio from Deuterium 87 1 . Pion energies and angles included 87 2 . Positive pions 89 3 Three - prong negative mesons 90 4 . Two ...
Page 4
... weighted for chamber geometry by an IBM 704 computer using a Monte Carlo technique . The ratios σ / σ o ̄ / o + were determined as a function of laboratory - system photon energy k and meson c.m. angle ( two - body kinematics ) : by ...
... weighted for chamber geometry by an IBM 704 computer using a Monte Carlo technique . The ratios σ / σ o ̄ / o + were determined as a function of laboratory - system photon energy k and meson c.m. angle ( two - body kinematics ) : by ...
Page 9
... weighted average of seven experiments gives P = 1.63 ± 0.05 . Using this together with the theoretical value R = = 1.30 gives PR = 2.12 . Now if we rearrange the factors in the product of these ratios , we obtain σ ( y + n → π ̄ + p PR ...
... weighted average of seven experiments gives P = 1.63 ± 0.05 . Using this together with the theoretical value R = = 1.30 gives PR = 2.12 . Now if we rearrange the factors in the product of these ratios , we obtain σ ( y + n → π ̄ + p PR ...
Page 41
... weighted average of these extrapolations gives 194.0 ± 0.6 Mev . An error of 1 % is allowed for reproducing the meter reading on the synchrotron magnet power supply , giving 194 ± 2 Mev . The photon energy at each cutoff was calculated ...
... weighted average of these extrapolations gives 194.0 ± 0.6 Mev . An error of 1 % is allowed for reproducing the meter reading on the synchrotron magnet power supply , giving 194 ± 2 Mev . The photon energy at each cutoff was calculated ...
Page 82
... chamber , determined by the end points of 45 leaving tracks . The choice of the boundary in the region of the VP cell was guided by measurements on a projection table . J. JMC and POPINJAY : Weighting of Two - Prong -82-
... chamber , determined by the end points of 45 leaving tracks . The choice of the boundary in the region of the VP cell was guided by measurements on a projection table . J. JMC and POPINJAY : Weighting of Two - Prong -82-
Common terms and phrases
Adamovich adjustment analysis analyzable average background Baldin bremsstrahlung bremsstrahlung beam bubble chamber calculated capacitor chamber boundaries chamber geometry coordinates Coulomb corrections Coulomb interaction curve decay determined deuterium deuterium bubble chamber deuteron diameter dispersion relations distribution effects electron error Event Reconstruction event vertex experimental extrapolation fiducial marks film hydrogen ionization chamber kinematics kinetic energy laboratory-system least-squares leave the chamber leaving tracks LiH beam hardener Lucite mass measurements meson events msec muon negative mesons negative pion negative-meson events negative-pion Newton's method nucleon Number of events observed obtained pair-spectrometer parameters particles peak energy photon energy photopion photoproduction photoproton scatterings pion Polology positive pions production programs prongs psig pulses punched range ratio Reaction recoil roll shown in Fig spectrum stereo sweep magnet synchrotron threshold transmission two-prong events visible VP cell weighted