Hidden dibaryons in one- and two-pion production in NN collisionsстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 17 мая 2016 г.
Аннотация:Processes of one- and two-pion production in NN collisions are
considered in connection with excitation of intermediate dibaryon
resonances. In particular, relative contributions of the conventional
meson-exchange and dibaryon excitation mechanisms in the reaction pp \to d\pi^+ are investigated in detail. Inclusion of the intermediate isovector dibaryon resonances is
shown to essentially improve the description of experimental data for
this reaction, provided the soft meson-baryon form factors consistent
with \pi N elastic scattering are used. Manifestation of the intermediate
isoscalar and isovector dibaryons in the two-pion production processes is
also studied. The role of the isovector dibaryon resonances in the
reaction pp \to pp\pi\pi is discussed for the first time. An explanation of
the observed strong differences between two-pion production cross sections
in pn and pp collisions based in part on the analysis of dibaryon
structure is suggested.