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Pion charges distribution in presence of induced transitionsLacroix, Benoit, 1960- January 1986 (has links)
No description available.
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[Pi]⁺-photomeson production from hydrogen, deuterium, helium, and carbonRepp, Gordon W. January 1955 (has links)
Thesis (Ph. D. in Physics)--University of California, Berkeley, Sept. 1955. / Includes bibliographical references (p. 71-73). 68
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Pion charges distribution in presence of induced transitionsLacroix, Benoit, 1960- January 1986 (has links)
No description available.
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Measurement of the pion quasi-free radiative capture cross-section on �����O and T[pi]+=165, 220 MeVFarzanpay, Farzin 05 May 1994 (has links)
Graduation date: 1997
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Charged pion production cross section using 120 GeV/c proton beam on carbon targetAydin, Gural. Onel, Y. January 2009 (has links)
Thesis supervisor: Onel Yasar. Includes bibliographic references (p. 73-74).
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Pion induced pion production on Oxygen at 280 MeVRozon, Francis Martin January 1988 (has links)
A first coincident measurement of the pion induced pion production reaction cross-section on a complex nucleus (A > 2) has been successfully performed. In particular, the reaction ¹⁶O(π⁺,π⁺,π⁻) was measured at 280 MeV incident pion energy. The only previous published measures of this reaction on nuclei consisted of a dated measurement done on emulsion nuclei [BBD*69] and did not provide very stringent limits to the nuclear cross section. Single arm experiments have previously been done elsewhere on the proton [BJK*80] and the deuteron [PGM*84].
The reaction was measured at TRIUMF using the QQD magnetic spectrometer in coincidence with the CARUZ [RGR88], a total absorption scintillator range telescope. The measured four-fold differential cross sections were extrapolated to the unmeasured portions of the phase-space to extract the total reaction cross-section at 280 MeV, which was found to be σtot = 2.250 ± .350m6.
The (π,2π) cross-section is thus observed to provide approximately 40% of the inclusive double charge exchange cross section [Woo84] at this energy.
The model of [OV86] is found to explain many of the features of the data, including σtot. The present data do not preclude effects due to pion condensate precursor phenomena as proposed by [CE83] but they do not support the existence of a strong effect. The data are also compared to kinematical Monte Carlo simulations of some possible reaction mechanisms and it is found that the presence of an intermediate ∆ can aid the explanation of the low energy features of the π⁺ energy spectrum. / Science, Faculty of / Physics and Astronomy, Department of / Graduate
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A study of the reaction p+p-->p+p+[pi][superscript 0] from 320 MeV to 500 MeVStanislaus, Thanthirimudalige Don Shirvel January 1987 (has links)
The reaction p+p → p+p+π⁰ has been studied from threshold up to 500 MeV, by detecting the decay 7-rays of the π⁰ in coincidence in two large NaI crystals (TINA and MIN A). It was possible to measure the energy spectra, the differential cross sections and the asymmetry of the π⁰.
The total cross sections and the angular distribution parameter b (defined by [Formula Omitted] determined in this measurement are consistent with previous measurements, but are of a much higher precision. The value obtained for b is very small indicating that most of the π⁰ mesons are isotropically distributed in the centre of mass. Assuming the energy spectra predicted by Gell-Mann, we have deduced the intensities of the Ss, Ps and Pp transitions by a global fit to all the energy spectra and the resulting cross sections. For Ss we obtained [Formula Omitted] which is smaller and more accurate than the previous measurements. A model independent [Formula Omitted] would have an uncertainty of about 6 µb.
We have compared our results with those of the reaction n+p → N + N + π± and found them to be fairly similar. Any difference would demand inelasticities in the 1=0 channels, but the total cross sections indicate that σ₀₁ is small. The centre of mass pion energy spectra for pp → ppπ⁰ and np → nnπ⁺ are also similar. However a large cosΦ term is observed in the π± differential cross sections from the np reaction which is an indication of a significant value for σ₀₁.
The analysing powers are fairly large and negative. This is the first measurement
of this observable, although evidence from the reaction ¹³C(p, π⁻) had suggested that the asymmetry in the free pn → ppπ⁻ reaction might be positive. / Science, Faculty of / Physics and Astronomy, Department of / Graduate
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HARP Targets Pion Production Cross Section and Yield Measurements: Implications for MiniBooNE Neutrino FluxWickremasinghe, Don Athula A. 12 October 2015 (has links)
No description available.
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Pion photo- and electro-production from the nucleon /Caia, George Laurentiu. January 2004 (has links)
Thesis (Ph. D.)--Ohio University, August, 2004. / Includes bibliographical references (p. 113-117).
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Neutral pions from proton-proton collisions at 735 MevMead, Gilbert D. January 1962 (has links)
Thesis (Ph.D.)--University of California, Berkeley, 1962. / "UC-34 Physics" -t.p. "TID-4500 (17th Ed.)" -t.p. Includes bibliographical references (p. 81-83).
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