Speaker
Yernar Tautayev
(Institute of Physics and Technology, Almaty, Kazakhstan)
Description
Cosmic ray measurements are carried out on at a detector station located in the Tian Shan mountains at an altitude of 3340 meters above sea level using the complex installations "Hadron-9" and "Hadron-44". The main objective of these studies is the interaction of cosmic rays with nuclei, in particular the study of anomalous events occurring in the cores of extensive air showers (EAS). Analysis was performed for 10199 detected events, of which 2657 events interacted directly in the target. 462 events with a Gamma-ray number of n≥4 could be identified. For these events angular correlations were investigated using two-dimensional correlation functions of the form Δη-Δφ. Here Δη is the difference of pseudorapidities (η= -ln(tan(θ/2)) with θ the polar angle measured by the deviation from the beam axis deviation, and Δφ is the difference between the azimuth angles of two particles. As a result we received a well-defined structure for the paired 0.5 < Δη < 4.5, 0.4 < Δφ < 2.6 two-particle correlation functions, almost similar to the results obtained in the “Observation of long-range, near-side angular correlations in proton-proton collisions at the LHC”. This is the first observation of such a structure in the two-particle correlation function of the interaction of cosmic rays with matter.
| Registration number following "ICRC2015-I/" | 199 |
|---|---|
| Collaboration | -- not specified -- |
Author
Turlan Sadykov
(Institute of Physics and Technology, Almaty, Kazakhstan)
Co-authors
Natalya Zastrozhnova
(Institute of Physics and Technology, Almaty, Kazakhstan)
Nikolay Pokrovsky
(Institute of Physics and Technology, Almaty, Kazakhstan)
Serekbol Tokmoldin
(Institute of Physics and Technology, Almaty, Kazakhstan)
Yernar Tautayev
(Institute of Physics and Technology, Almaty, Kazakhstan)
