Il Nuovo Cimento A (1965-1970)

, Volume 56, Issue 4, pp 1087–1093 | Cite as

Large-angle scattering and the pion's Regge trajectory

  • P. G. O. Freund


It is pointed out that in high-energy pp-scattering at large momentum transfers (−t≳6 (GeV)2) the Pomeranchukon contribution may be small and the pion trajectory may take over. The argument is centred around a lower bound for scattering amplitudes and the idea of exchange degeneracy. The kinematical variablex=−tln ((3+cosθ)/(1−cosθ)) is provided naturally by this picture for the discussion of large-angle ppscattering data.


Regge Trajectory Angola Residue Function Large Momentum Transfer Diffraction Scattering 
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Рассеяние на большие углы и пионные траектории Редже


Доказывается, что в рр-рассеянии при высоких энергиях в области больших передаваемых импульсов (−t≳6 ГэВ2) вклад Померанчукона является малым, и пионная траектория преобладает. Доказательство сосредоточивается около нижней границы для амплитуд рассеяния и идеи обменного вырождения. Кинематическая переменнаяx=−tln ((3+cosθ)/(1−cosд)) возникает естественно из этой картины для обсуждения данных по рр-рассеянию на большие углы.


Si mette in evidenza come nello scattering pp di alta energia a grandi impulsi trasferiti (−t≳(GeV)2) il contributo del Pomeranchukone possa essere piccolo e come la traiettoria del pione possa superarlo. Il ragionamento si basa su un limite inferiore per le ampiezze di scattering e sull'idea della degenerazione dello scambio. Questa rappresentazione fornisce spontaneamente la variabile cinematica ax=−tln ((3+cosθ)/(1−cosθ)) per la discussione dei dati dello scattering di grande angolo.


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Copyright information

© Società Italiana di Fisica 1968

Authors and Affiliations

  • P. G. O. Freund
    • 1
    • 2
  1. 1.The Enrico Fermi InstituteThe University of ChicagoChicago
  2. 2.Department of PhysicsThe University of ChicagoChicago

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