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Título:
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Regge analysis of pion-pion (and pion-kaon) scattering for energy s^(1/2)> 1.4 GeV
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Autores:
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Peláez Sagredo, José Ramón ;
Ynduráin, F. J.
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Tipo de documento:
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texto impreso
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Editorial:
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American Physical Society, 2004-06
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física: Física-Modelos matemáticos
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Materia = Ciencias: Física: Física matemática
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Tipo = Artículo
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Resumen:
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We perform a detailed Regge analysis of NN, ?N, KN, ? ?, and ?K scattering. From it, we find expressions that represent the pp scattering amplitudes with an accuracy of a few percent for exchange of isospin zero and ~15% for exchange of isospin 1, and this for energies s^(1/2) ?1.4 GeV and for momentum transfers |t|^( ½) ?0.4 GeV. These Regge formulas are perfectly compatible with the low energy [s^(1/2)~1.4 GeV] scattering amplitudes deduced from ? ? phase shift analyses as well as with higher energy [s^(1/2)?1.4 GeV] experimental ? ? cross sections. They are also compatible with NN, KN, and ?N experimental cross sections using factorization, a property that we check with precision. This contrasts with results from current phase shift analyses of the ? ? scattering amplitude, which bear little resemblance to reality in the region 1.4
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En línea:
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https://eprints.ucm.es/35501/1/pelaezsagredo68libre.pdf
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