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[en] The mechanisms of pion production in the reaction π+p → π+π+n are studied using a theory with broken chiral symmetry. The parameter ξ = -0.11 ± 0.11. It is shown that the contribution of the Δ-isobar mechanism must be taken into account even for energies close to the threshold of this reaction. 9 refs., 5 figs
Journal
[en] The π+-H and π+-D elastic scattering excitation functions for theta π = 1800 were measured between 130 and 280 MeV kinetic energy. The π+D results show some evidence for a structure in the vicinity of 250 MeV which could be due to a dibaryon resonance formation. (orig.)
Journal
Phys. Lett., B; ISSN 0370-2693; 
; v. 91(3/4); p. 345-348
; v. 91(3/4); p. 345-348
[en] Effects of pπ exchange current on the pion absorption process π+ + d → p + p has been investigated. The absorption cross section was significantly enhanced particularly in the energy region larger than 33-resonance. (author)
Journal
Sae Mulli; ISSN 0374-4914; ; v. 19(4); p. 203-205
; v. 19(4); p. 203-205
No abstract available
Journal
Bulletin of the Israel Physical Society; ISSN 0374-2687; ; v. 24, p. 47, F-12
; v. 24, p. 47, F-12
[en] In the momentum distribution of π+ mesons from the reaction π++A(C, Xe)→π+/sub back/ +kp(k = 0,1,2...)+A' we have observed a narrow maximum in the small-momentum region similar to that observed previously [I. I. Vorob'ev, L. S. Novikov, and A. F. Buzulutsov, Sov. J. Nucl. Phys. 36, 243 (1982)] with poorer statistics for π- mesons
Journal
[en] Two suggested moments of rapidity gaps are studied on π+p and K+p collisions at 250 GeV/c. The experimental results are compared with those obtained from PYTHIA simulation. The efficiency of the method is discussed
Journal
No abstract available
Source
Zelenskaya, N.S. (ed.); Rossijskaya Akademiya Nauk, Moscow (Russian Federation); Moskovskij Gosudarstvennyj Univ. im. M.V. Lomonosova, Moscow (Russian Federation); Nauchno-Issledovatel'skij Inst. Yadernoj Fiziki im. D.V. Skobel'tsyna, Moscow (Russian Federation); 406 p; ISBN 5-211-06078-4; ; 2002; p. 293, 387; LII meeting on nuclear spectroscopy and nuclear structure (Nucleus-2002); 52. Mezhdunarodnoe soveshchanie po yadernoj spektroskopii i strukture atomnogo yadra. Yadro-2002; Moscow (Russian Federation); 18-22 Jun 2002; 1 ref., 2 figs., 1 tab.
; 2002; p. 293, 387; LII meeting on nuclear spectroscopy and nuclear structure (Nucleus-2002); 52. Mezhdunarodnoe soveshchanie po yadernoj spektroskopii i strukture atomnogo yadra. Yadro-2002; Moscow (Russian Federation); 18-22 Jun 2002; 1 ref., 2 figs., 1 tab.
[en] The paper presents the program of the polarization-parameter P measurement in elastic π+ interaction in the second resonance region at backward pion scattering. The goal of the program is determination of the bifurcation points of the pion-nucleon amplitude-zero trajectories and, thus, unambiguous reconstruction of the πN-scattering amplitude in the second resonance region. The experiments are proposed to be performed at the beam of ITEP (Moscow) accelerator
[ru]
Представлена программа измерения поляризационного параметра P в упругом π+-взаимодействии в резонансной области при рассеянии пиона назад. Эта программа направлена на определение точек бифуркации траектории нулей пион-нуклонной амплитуды и, таким образом, на однозначное восстановление амплитуды πN-рассеяния во второй резонансной области. Эксперименты предлагается выполнить на пионном пучке ускорителя ИТЭФ (Москва)Journal
[en] The erraticity behavior of multiparticle production is analyzed in π+p and K+p collisions at 250 GeV/c. It is demonstrated that, for these low-multiplicity final states, the erraticity measure based on event-to-event fluctuation of factorial moments is dominated by statistical fluctuations
Journal
[en] Mechanisms of pion production in the reaction using theory with broken chiral symmetry has been obtained
Journal
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