Measurement of the [pi]−p $Yields$ [pi]°n and [pi]−p $Yields$ Eta N Differential Cross Sections at Beam Momenta from 20 to 200 GeV/c PDF Download
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Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
The results of a measurement of the [pi]−p $Yields$ [pi]°n and [pi]−p $Yields$ eta n differential cross sections at six pion beam momenta from 20 to 200 GeV/c are presented. The data for these cross sections were collected at the Fermi National Accelerator Laboratory in Batavia, Illinois. A 73.5 x 73.5 cm lead--scintillator hodoscope was used to detect the two photons from the decay of the $pi$° and the eta; all other reactions were eliminated by detection of their charged particles and additional photons in an array of veto counters. The zero-degree charge exchange cross sections determined from these measurements are shown to be consistent with the measured $pi$$sup +$p and $pi$−p total cross section differences. Effective Regge trajectories for the rho and the A2 also extracted from the data. 34 figures, 9 tables. (auth).
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
The results of a measurement of the [pi]−p $Yields$ [pi]°n and [pi]−p $Yields$ eta n differential cross sections at six pion beam momenta from 20 to 200 GeV/c are presented. The data for these cross sections were collected at the Fermi National Accelerator Laboratory in Batavia, Illinois. A 73.5 x 73.5 cm lead--scintillator hodoscope was used to detect the two photons from the decay of the $pi$° and the eta; all other reactions were eliminated by detection of their charged particles and additional photons in an array of veto counters. The zero-degree charge exchange cross sections determined from these measurements are shown to be consistent with the measured $pi$$sup +$p and $pi$−p total cross section differences. Effective Regge trajectories for the rho and the A2 also extracted from the data. 34 figures, 9 tables. (auth).
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
The results of a measurement of the $pi$$sup -$p $Yields$ $pi$$sup 0$n and $pi$$sup -$p $Yields$ eta n differential cross sections at six pion beam momenta from 20 to 200 GeV/c are presented. The data for these cross sections were collected at the Fermi National Accelerator Laboratory in Batavia, Illinois. A 73.5 x 73.5 cm lead--scintillator hodoscope was used to detect the two photons from the decay of the $pi$$sup 0$ and the eta; all other reactions were eliminated by detection of their charged particles and additional photons in an array of veto counters. The zero-degree charge exchange cross sections determined from these measurements are shown to be consistent with the measured $pi$$sup +$p and $pi$$sup -$p total cross section differences. Effective Regge trajectories for the rho and the A$sub 2$ also extracted from the data. 34 figures, 9 tables. (auth).
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
The ratio R of the differential cross sections for .pi.−p eta'n and .pi.−p eta n was measured with high statistics and small systematic errors at 8.45 GeV/c. R is generally interpreted as the relative content of nonstrange, ground-state quarks in eta' and eta. It is found that R decreases with increasing t; however, extrapolation to t = 0 gives R(0) = 0.672 +- 0.032 (statistical) +- 0.047 (systematic) for the dominant spin flip cross sections, and R(0) = 0.500 +- 0.085 +- 0.035 for the spin nonflip, in excellent agreement with results at higher energy.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
Measurements of the invariant cross section for various beam species to produce .pi.° mesons at high transverse momentum in the reaction beam + proton .-->. .pi.0 anything are presented. These measurements were taken at Fermilab at 100, 200 and 300 GeV/c. 8 references.
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