arXiv subjects

Gleb L. Kotkin

Publications and source records attributed to Gleb L. Kotkin.

2 recordsLinked to original sources

arXiv2021

Photon Collider for energies 1-2 TeV

We discuss a photon collider based on the $e^+e^-$ \ linear collider with energies of $2E = 1÷2$ TeV in cms (ILC, CLIC, ...). Previously, this energy range was considered hopeless for the experiment in the foreseeable future. We discuss the realization of the TeV PLC based on modern lasers. A small modification of the laser-optical system prepared for the photon collider with energy of $E \approx 250$ GeV will be sufficient if the parameters are chosen optimally. The high-energy part of the photon spectrum does not depend on design details and is well separated from the low-energy part. That is a narrow band near the upper boundary, about 5\% wide. The high-energy integrated \ggam luminosity is about 1/5 and the maximum differential luminosity is about 1/4 of the corresponding values for the photon collider with $E \approx 250$ GeV.

hep-ph↗

arXiv2020

High energy Photon Collider

We discuss a high-energy photon linear collider (HE PLC) based on the $e^+e^-$ linear collider with cms electron energy $2E = 1 ÷2$ TeV (JLC, CLIC,...). This energy region was previously considered hopeless for experiment. On the contrary, the present study leads to a rather optimistic conclusions. We compare properties of HE PLC with those of the usually discussed {\it standard PLC} with $ E\approx 250$ GeV. We show that at the optimal choice of laser the high-energy \ggam luminosity integral is about 1/5, and the maximum luminosity is about 1/4 from similar values for the standard PLC. For this choice, the laser flash energy and laser-optical system should be approximately the same as those prepared for the standard PLC. The photon spectrum of HE PLC is much more monochromatic than that in the standard PLC, it is concentrated near the high-energy limit with an energy spread of about 5\%. It will be well separated from the low energy part.

hep-ph↗