Pion Production in Neutron-proton Collisions at Bevatron Energies
Author: Fred Nels Holmquist
Publisher:
Published: 1959
Total Pages: 134
ISBN-13:
DOWNLOAD EBOOKRead and Download eBook Full
Author: Fred Nels Holmquist
Publisher:
Published: 1959
Total Pages: 134
ISBN-13:
DOWNLOAD EBOOKAuthor: James Evans Parker
Publisher:
Published: 1962
Total Pages: 280
ISBN-13:
DOWNLOAD EBOOKAuthor: Willard Roy Thomas
Publisher:
Published: 1977
Total Pages: 252
ISBN-13:
DOWNLOAD EBOOKAuthor: Paolo Sereni
Publisher:
Published: 1998
Total Pages: 148
ISBN-13:
DOWNLOAD EBOOKAuthor:
Publisher:
Published: 2002
Total Pages: 16
ISBN-13:
DOWNLOAD EBOOKAuthor:
Publisher:
Published: 1977
Total Pages:
ISBN-13:
DOWNLOAD EBOOKThe two reactions np .-->. nn.pi. and np .-->. pp.pi.− were studied at 790 MeV (incident neutron energy). Pion spectra were measured at 10 different angles with a multiwire proportional chamber spectrometer. Approximately 100,000 events were analyzed. The angular distribution of pions in the np center of momentum system (d sigma/d.cap omega.*) was given by ((123.1 +- 2.7) + (88.3 +- 4.9)cos2(theta*))(.mu.b/sr). The cross section sigma(np .-->. NN.pi./sup +-/) was determined to be 1.92 +- 20 mb by integrating (d sigma/d.cap omega.*) over all angles. The partial cross section for pion production from T = 0 np interactions (sigma01) was found to be .1/sub -.1//sup +.5/ mb by using the relation sigma01 = 2sigma(np .-->. NN.pi./sup +- )--sigma(pp .-->. pp.pi.°). Stronger indications of nonresonant pion production were given by the presence of asymmetries between the positive and negative pion spectra and a comparison of the data with an isobar model calculation.
Author: Anders Oskarsson
Publisher:
Published: 1983
Total Pages: 54
ISBN-13:
DOWNLOAD EBOOKAuthor: Roger John Homer
Publisher:
Published: 1963
Total Pages: 105
ISBN-13:
DOWNLOAD EBOOKAuthor: Stephen Alan Chessin
Publisher:
Published: 1983
Total Pages: 354
ISBN-13:
DOWNLOAD EBOOKAuthor: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
Published: 2018-05-22
Total Pages: 50
ISBN-13: 9781719376280
DOWNLOAD EBOOKInclusive pion, kaon, proton, and antiproton production from proton-proton collisions is studied at a variety of proton energies. Various available parameterizations of Lorentz-invariant differential cross sections as a function of transverse momentum and rapidity are compared with experimental data. The Badhwar and Alper parameterizations are moderately satisfactory for charged pion production. The Badhwar parameterization provides the best fit for charged kaon production. For proton production, the Alper parameterization is best, and for antiproton production the Carey parameterization works best. However, no parameterization is able to fully account for all the data. Norbury, John W. and Blattnig, Steve R. Langley Research Center ANTIPROTONS; KAONS; PROTON ENERGY; SCATTERING CROSS SECTIONS; PIONS; PARAMETERIZATION; TRANSVERSE MOMENTUM