4.2 ГэВ/с энергийн үед нүүрстөрөгчийн цөм протон , нүүрстөрөгчийн болон танталын цөмүүдтэй мөргөлдөх үед олон ба нэг цэнэгтэй анхдагч нүүрстөрөгчийн цөмүүдийн хэлтэрхийнүүдийн гаралтыг судлав. Мөн олон цэнэгт анхдагч цөмийн тооноос хоёрдогч бөөмсийн олонлогийн хамаарлыг судалсан. Туршлагын дүнгээс үзэхэд п мезоны гаралт п мезоныхыг бодвол их байна. Олон цэнэгт анхдагч цөмийн хэлтэрхийн 6а сөрөг цэнэг бүхий адроны келитрот хооронд цахилгаан цэнэгийн холбоог илрүүлсэн. Энэ нь аномалон эффект илрэх нөхцөл нь байж болно.

The aim of high energy heavy ion physics is to study strong interacting matter at extreme energy densities. QCD predicts that, an sufficiently high energy density, there will be a phase transition from hadron matter to a plasma of deconfined quarks and gluons called a Quark-Glu Plasma(QGP). Such a phase transition would have taken place in the ea Universe some 10-5 seconds after the Big Bang and may still play a role in the core of collapsing neutron stars.

Mass spectra of the reaction (p,2p) at the beam energy 500 MeV on nuclei C,Al,Cu and Pb were measured on two-armed nonmagnetic scintillation spectrometer (candlepower - 0.2 sr, mass allowance - 4 MeV), which is lokated on the TRIUMF cyclotron (Canada). Observable anomalies in these spectra can be stipulated by forming of two-nucleon resonance states.

The analyzing power of the reaction d up + C --> p + X has been measured in a deuteron beam at deuteron energies 0.6, 0.8, 1.0, and 2.1 GeV/nucleon. The analyzing power behaves in the same way as in a beam of polarized protons. At angles above 90-degrees, the analyzing power is small. In the interval 70-degrees-90-degrees, it is positive. It increases with increasing energy of the detected protons, reaching a maximum of approximately 30%. A correlation experiment carried out at 0.8 GeV/nucleon revealed coincidences between fast protons emitted at angles 75-degrees and 90-degrees, on the one hand, and particles in the forward hemisphere, on the other. Two distinct mechanisms are identified. They differ in the sign of the analyzing power. They make comparable contributions to the emission of fast protons at angles near 90-degrees.

The invariant distributions in the kinetic energy and transverse energy [E perpendicular-to = (p perpendicular-to 2 + m2)1/2] of cumulative pi- mesons produced in the pi- C interaction at 40 GeV/c are studied. The slopes of the experimental spectra correspond to a pi--meson production temperature T0 almost-equal-to 300 MeV.

The invariant distributions with respect to the kinetic and transverse [E-perpendicular-to = (p-perpendicular-to 2 + m2)1/2] energies of cumulative pi- mesons produced in d C, HeC, and CC interactions at initial momentum 4.2 GeV/c per nucleon have been investigated. The slopes of the experimental spectra correspond to a production temperature T(o) approximately 0.23-0.24 GeV of the cumulative pi- mesons. This value is above the theoretical estimates for the critical temperature of the phase transition from hadronic matter to a quark-gluon plasma: T(cr) approximately 200 MeV.

The dependence of the invariant differential cross sections for production of secondary pi- mesons on the cumulative number n(k) is investigated for pi- C interactions at initial momentum 40 GeV/c. The momentum and angular characteristics of pi- mesons with the cumulative number n(k) > 1 are presented. It is shown that the "effective temperature" of secondary pi- mesons increases with increase of n(k) and reaches the value T0 = 755 +/- 56 MeV for pi- mesons with n(k) > 1, which appreciably exceeds the critical temperature of the phase transition of nuclear matter into the quark-gluon state predicted theoretically.