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Only with the value L σ = 12 of σ-meson angular momentum b σ P σ such mechanism
of mesons production would be consictent. Then a conservation of angular momentum
∆L p = L σ andsuppositionofperiphericalcollisionb p ≈ 2R 0 definethedecreaseofmomentum∆P
p = L σ /2R 0 ≈ 2.36GeV/cofincidentprotonanditsmomentumP p = P 0 −n σ ∆P p
after emission of n σ mesons. For maximum number n σ = 18 final value P p ≈ 7,3GeV/c
of this momentum may be predicted.
Momentum of meson P σ = L σ /b σ with L σ = 12 and transfered to the proton-target
longtitudional momentum δP p ′ = ∆P p − P σ are depend on parameter b σ of emission of
this meson. In the case of maximum value b (max)
σ = 3R 0 ≈ 1.5f momentum of meson
must be P σ ≈ 12/b (max)
σ ≈ 1,58GeV/c and transfered to proton-target momentum must
be δP p ′ ≈ 0.78GeV/c. Then after emission of 18σ-mesons longtitudional momentum of
proton target P p ′ ≈ 14.22GeV/c. Without taking into account small contributions of
transverse momenta approximate estimation is E 18σ ≈ E 0 − E p − E p ′ ≈ 29,30GeV for
energy of these 18 mesons, so their mean velocity v σ ≈ 0.97c is less than velosity of centre
mass v s.c.m. ≈ 0.981c, and velocity of final protons system v p+p ′ ≈ 0.996c is more than
v s.c.m . If such or similar difference of velocities in the events with large number of mesons
will be detected, this may be explained by considered mechanism.
References
[1] E.N. Ardashev et al., Topological cross-sections in pp-interactions at 50GeV, IHEP
Preprint 2011-4, Protvino, 2011.
Yad.Phys. 75 (3), 343 (2012).
[2] G.M. Amalsky, in Proc. XX ISHEPP, Dubna, 2011, v.I, p.43.
[3] G.M. Amalsky, in Proc. XIX ISHEPP, Dubna, 2009, v.I, p.208.
[4] A.G. Afonin et al., Neutral pion number fluctuations at high multiplicity in ppinteractions
at 50 GeV. www.reseachgate.net/publication/51909589
V.A. Nikitin, at XLVI PNPI Winter Scool, 26 Febr. - 2 Mar. 2012.
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