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Title of Journal: Nuovo Cimento A 19651970

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Abbravation: Il Nuovo Cimento A (1965-1970)

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Springer Berlin Heidelberg

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DOI

10.1007/s10409-007-0110-5

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1826-9869

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Computation of forward pp dispersion relations

Authors: P Pascual F J Yndurain
Publish Date: 2016/01/09
Volume: 61, Issue: 2, Pages: 225-232
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Abstract

We compute forward pp dispersion relations by expanding the unphysical part in a series of Chebyshev polynomials and fitting the coefficients to the experimental lowenergy values of Refpp The fit is very good and the results are consistent with experiment when extrapolated at high energy As a byproduct values of real and imaginary parts of thebar pp amplitude at zero energy are obtainedМы вычисляем pp дисперсионные соотношения на угол нуль путем разложения нефизической части в ряд по полиномам Чебышева и подгонки коэффициентов к экспериментальным значениям Refpp при низких энергиях Подгонка является хорошей и результаты согласуются с экспериментом при экстраполяции в область высоких энергий Как побочный результат получаются значения вещественной и мнимой частейbar pp амплитуды при нулевой энергииSi calcolano le relazioni di dispersione di pp in avanti sviluppando la parte non fisica in una serie di polinomi di Chebyshev e adattando i coefficienti ai valori sperimentali a bassa energia di Refpp Lapprossimazione è molto buona e i risultati una volta estrapolati ad alta energia sono coerenti con i dati sperimentali Accessoriamente si ottengono valori delle parti reale e immaginaria dellampiezza dibar pp ad energia zero

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  2. Projector in constrained quantum dynamics
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  4. Analysis of the reaction π + p → ρ 0 Δ ++ at 11.7 GeV/c incident momentum
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  9. Surface waves in pion-proton elastic scattering
  10. A study of two-pion exchange contributions to quasi-elastic scattering at high energies
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  31. Two-variable crossing-symmetric expansion of the ππ scattering amplitude and low-energy parameter sum rules
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