Prof. Rauf Mukhamedshin

Co-authors

Following

Followers

Research Focus & Metrics

Explore full metrics on Scilit

Academic Career Length

11Years (2016-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications

22 November 2019 in The European Physical Journal Plus

Journal Article

FANSY 2.0: A Monte Carlo tool for study of superhigh-energy cosmic-ray interactions

Rauf Mukhamedshin

18 February 2022 in The European Physical Journal C

Journal Article

On connection between the collider long-range near-side “ridge” effect at $$|\eta | < 2.4$$ and cosmic-ray coplanarity of most energetic particles

Rauf Mukhamedshin

Some coplanarity of most energetic subcores of $$\gamma $$

γ

-ray–hadron families is observed in cosmic-ray experiments at $$E_0 \gtrsim 10^{16}$$

E_{0} ≳ 10^{16}

eV ( $$\sqrt{s} \gtrsim 5$$

\sqrt{s} ≳ 5

TeV). This effect requires appearance of some coplanar generation of most energetic particles in hadron-nucleus interactions. On the other hand, a long-range near-side “ridge” effect was observed inppcollisions at $$\sqrt{s} = 7$$

\sqrt{s} = 7

TeV by the CMS Collaboration in two-particle $$\varDelta \eta - \varDelta \varphi $$

Δ η - Δ φ

correlation functions at $$|\varDelta \eta | \gtrsim 3$$

| Δ η | ≳ 3

and $$|\varDelta \varphi | \approx 0$$

| Δ φ | \approx 0

. To improve a research for possible relationship of these phenomena, a phenomenological FANSY 2.0 model is designed to simulate hadron interactions using both traditional and coplanar modes for the hadron generation, QGSJ and CPG, respectively. The FANSY 2.0 reproduces LHC data on generation of unflavoured, strange and charmed hadrons. Model parameters of coplanar hadron generation are given. It is shown that the FANSY 2.0 CPG reproduces the near-side “ridge” effect at $$\sqrt{s} = 7$$

\sqrt{s} = 7

TeV.

24 May 2019 in The European Physical Journal C

Journal Article

Does superhigh-energy cosmic-ray coplanarity contradict LHC data?

Rauf Mukhamedshin

One of phenomena observed in cosmic-ray experiments at [equation] eV ([equation] TeV) is a so-called coplanarity of most energetic subcores of [equation]-ray–hadron families. This effect requires...

15 February 2023 in Applied Sciences

Journal Article

Studies of Anomalous Phenomena in the Development of Electron-Nuclear Cascades in the EAS Cores Registered by a Modernized Complex Installation at Mountain Altitudes

Phenomena have been observed in mountain high-energy cosmic-ray experiments, namely, a delayed absorption of high-energy cascades initiated by cosmic-ray hadrons in a lead absorber at

E_{0} ≳ 10^{14} e V

(so-called long-flying component), a coplanarity of most energetic particles in the central region of γ-ray−hadron superfamilies, and the so-called Tien Shan effect in EAS cores at

E_{0} ≳ 10^{16} e V (\sqrt{s} > 5 T e V)

. These effects are not described by theoretical models. The coplanarity is explained by the process of coplanar generation of most energetic secondary particles in interactions of superhigh-energy hadrons with the nuclei of air atoms. The other two phenomena are possibly explained with a high cross section for fragmentation-region charmed-hadron generation. To investigate these phenomena, a cosmic-ray detector array, including a very thick ionization calorimeter, is being upgraded to study EAS cores.

1 April 2021 in Bulletin of the Russian Academy of Sciences: Physics

Journal Article

Is There a Relationship between the Collider “Ridge” Effect and Particle Coplanarity in Gamma Ray–Hadron Families?

Rauf Mukhamedshin

Proton–proton interactions are modeled using the FANSY 2.0 model to show that the “long-range ridge effect” discovered by the CMS collabo

28 December 2023 in Particles

Journal Article

First Results of Studying EAS Cores Using a High-Mountain Ionization Calorimeter

In high-altitude experiments to study the central cores of EAS at E₀ ≳ 10¹⁶ eV (√s ≳ 5 TeV) using X-ray emulsion chambers and ionization calorimeters, phenomena such as the coplanarity of the arrival of the most energetic particles in super families of γ-rays and hadrons and a so-called Tien Shan effect (too slow absorption of cascades initiated by high-energy hadrons in the calorimeter) were observed. These effects could not be reproduced within the framework of theoretical models of the 80s and 90s. The coplanarity is explained via a process of coplanar generation of the most energetic secondary particles in interactions of super high-energy hadrons with nuclei of air atoms. Perhaps the Tien Shan effect could be explained using a high cross section for the generation of fragmentation-region charmed hadrons. To study these phenomena, a new set of detectors has been developed, including the world’s highest high-mountain ionization calorimeter, “Hadron-55”. This paper presents the initial experimental results.

About Me

Rauf Mukhamedshin: Leading Researcher, Head of the Laboratory of Neutrino Atrophysics, Institute for Nuclear Research of Russian Academy of Sciences, Doctor of Physical and Mathematical Sciences. I was born on December 3, 1948. In 1966, I entered the Tashkent State University, and in 1970, I transferred to the M.V. Lomonosov Moscow State University. I graduated from Moscow State University in 1973 and immediately entered the graduate school at the MSU. From 1976 to the present, I have been working at the Institute for Nuclear Research of the Russian Academy of Sciences. Currently, I am a leading researcher at the INR RAS and the head of the Laboratory of Neutrino Astrophysics. With my participation, about 250 scientific papers have been published. My scientific interests are superhigh-energy cosmic-ray physics and astrophysics, physics of elementary particles, hadronic interactions, simulation of nuclear-electromagnetic cascades using the Monte Carlo techniques. Work description: analysis of experimental data on EAS and X-ray emulsion chambers, and simulation of hadronic interactions and nuclear-electromagnetic cascades in the atmosphere using the Monte Carlo technique.

Prof. Rauf Mukhamedshin

Prof. Rauf Mukhamedshin

Research Focus & Metrics

Academic Career Length

Publication Type Breakdown

Representative Publications

About Me