Is (Ins)2 rise in nucleon-nucleon total cross section excluded by cosmic ray data?

1976 ◽  
Vol 26 (1) ◽  
pp. 81-85 ◽  
Author(s):  
J. Formánek
Keyword(s):  
Total Cross Section ◽  
Cross Section ◽  
Cosmic Ray ◽  
Nucleon Nucleon

scholarly journals Quasielastic Lepton Scattering off Two-Component Dark Matter in Hypercolor Model

Symmetry ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 708 ◽  
Author(s):  
Vitaly Beylin ◽  
Maxim Bezuglov ◽  
Vladimir Kuksa ◽  
Egor Tretiakov
Keyword(s):  
Dark Matter ◽  
Total Cross Section ◽  
Cross Section ◽  
Strong Dependence ◽  
Cosmic Ray ◽  
High Energy ◽  
Dominant Contribution ◽  
Quasielastic Scattering ◽  
Two Component ◽  
The Cross

The interaction of high-energy leptons with components of Dark Matter in a hypercolor model is considered. The possibility of detection, using IceCube secondary neutrinos produced by quasielastic scattering of cosmic ray electrons off hidden mass particles, is investigated. The dominant contribution to the cross section results from diagrams with scalar exchanges. A strong dependence of the total cross section on the Dark Matter components mass is also found.

scholarly journals ISOSPIN DEPENDENCE OF THE η' MESON PRODUCTION IN NUCLEON-NUCLEON COLLISIONS

2009 ◽  
Vol 24 (02n03) ◽  
pp. 458-461
Author(s):  
◽  
J. PRZERWA ◽  
P. MOSKAL ◽  
A. BUDZANOWSKI ◽  
E. CZERWIŃSKI ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Total Cross Section ◽  
Cross Section ◽  
Meson Production ◽  
Nucleon Nucleon ◽  
Preliminary Results ◽  
Isospin Dependence ◽  
Insight Into

A comparison of the close–to–threshold total cross section for the η' production in pp → ppη' and pn → pnη' reactions constitutes a tool to investigate the η' meson structure and the reaction mechanism in the channels of isospin I = 0 and I = 1 and may provide insight into the flavour-singlet (perhaps also into gluonium) content of the η' meson. In this contribution we present preliminary results of measurement of the quasi-free production of the η' meson in the proton-neutron collisions conducted using the COSY-11 facility.

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