On the reactions p + p↦p + Λ + K+ and p + p↦p + Σ0 + K+ near thresholds
نویسندگان
چکیده
منابع مشابه
The reactions pp → p Λ K + and pp → p Σ 0 K + near their thresholds
The reactions pp → pΛK+ and pp → pΣ0K+ are studied near their thresholds. The strangeness production process is described by the πand K exchange mechanisms. Effects from the final state interaction in the hyperon-nucleon system are taken into account rigorously. It is found that the Λ production is dominated by K exchange whereas Kas well as π exchange play an important role for the Σ0 case. It...
متن کاملOn the reactions p + p → p + Λ + K + and p + p → p + Σ 0 + K + near thresholds
The cross sections for the reactions of the strange production p + p → p + Λ + K+ and p + p → p + Σ0 + K+ near thresholds of the final states pΛK+ and pΣ0K+ are calculated in the effective Lagrangian approach. Our approach is based on the dominant contribution of the one–pion exchange and strong interaction of the colliding protons in the initial state. The theoretical values of the cross secti...
متن کاملHyperon - nucleon interactions in the pp → K + Λ p reaction
We present calculations of the invariant mass spectra of the Λp system for the exclusive pp → K + Λp reaction with the aim of studying the final state interactions between the Λ-hyperon and the proton. The reaction is described within a meson exchange framework and the final state Λp interactions are incorporated through an off-shell T-matrix for the Λp → Λp scattering, constructed using the av...
متن کاملO ct 2 00 1 On polarization of strange baryons in reactions p + p → p + Λ 0 + K + and p + p → p + Σ 0 + K + near thresholds
Polarization properties of strange baryons produced in pp reactions, p + p → p + Λ0 + K+ and p + p → p + Σ0 + K+, near thresholds of the final states pΛ0K+ and pΣ0K+ are analysed relative to polarizations of colliding protons. The cross sections for pp reactions are calculated within the effective Lagrangian approach accounting for strong pp rescattering in the initial state of colliding proton...
متن کاملΛ - Λ Interferometry in ( K − , K + ) Reactions at P ( K − ) = 1 . 8 GeV / c
We study (K−, K) reactions on nuclear targets (C and Be) at incident K− momentum of P (K−) =1.65 and 1.8 GeV/c by using the intranuclear cascade model combined with the correlation function technique. We compare the calculated results with two different sets of elementary mesonbaryon cross sections, but we cannot find significant differences in K spectra and ΛΛ invariant mass spectra. The calcu...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The European Physical Journal A
سال: 2000
ISSN: 1434-6001,1434-601X
DOI: 10.1007/s100500070027