Publications (50)
Technical Design Report for the: PANDA Straw Tube Tracker
PANDA Collaboration, W. Erni, I. Keshelashvili +470
This document describes the technical layout and the expected performance of the Straw Tube Tracker (STT), the main tracking detector of the PANDA target spectrometer. The STT encl…
Cosmological phase transition, baryon asymmetry and dark matter Q-balls
E. Krylov, A. Levin, V. Rubakov
We consider a mechanism of dark matter production in the course of first order phase transition. We assume that there is an asymmetry between X- and anti-X-particles of dark sector…
Deformable Linear Object Surface Placement Using Elastica Planning and Local Shape Control
I. Grinberg, A. Levin, E. D. Rimon
Manipulation of deformable linear objects (DLOs) in constrained environments is a challenging task. This paper describes a two-layered approach for placing DLOs on a flat surface u…
Thermopower of a Two-Dimensional Semimetal in a HgTe Quantum Well
E. B. Olshanetsky, Z. D. Kvon, M. V. Entin +4
The thermopower in a two-dimensional semimetal existing in HgTe quantum wells 18-21 nm thick has been studied experimentally and theoretically for the first time. It has been found…
Quality Control of Mass-Produced GEM Detectors for the CMS GE1/1 Muon Upgrade
M. Abbas, M. Abbrescia, H. Abdalla +179
The series of upgrades to the Large Hadron Collider, culminating in the High Luminosity Large Hadron Collider, will enable a significant expansion of the physics program of the CMS…
Cohomology of the complement to an elliptic arrangement
A. Levin, A. Varchenko
We consider the complement to an arrangement of hyperplanes in a cartesian power of an elliptic curve and describe its cohomology with coefficients in a nontrivial rank one local s…
Spatial mapping of the electron eigenfunctions in InAs self-assembled quantum dots by magnetotunneling
E. E. Vdovin, Yu. N. Khanin, A. V. Veretennikov +7
We use magnetotunnelling spectroscopy as a non-invasive probe to produce two-dimensional spatial images of the probability density of an electron confined in a self-assembled semic…
Characteristic Classes and Integrable Systems for Simple Lie Groups
A. Levin, M. Olshanetsky, A. Smirnov +1
This paper is a continuation of our previous paper \cite{LOSZ}. For simple complex Lie groups with non-trivial center, i.e. classical simply-connected groups, and we co…
Hamiltonian Algebroid Symmetries in W-gravity and Poisson sigma-model
A. Levin, M. Olshanetsky
Starting from a Lie algebroid over a space V we lift its action to the canonical transformations on the principle affine bundle over the cotangent bundle $T^*…
Classification of Isomonodromy Problems on Elliptic Curves
A. Levin, M. Olshanetsky, A. Zotov
We consider the isomonodromy problems for flat -bundles over punctured elliptic curves with regular singularities of connections at marked points. The bundles are classi…
Hamiltonian Algebroids and deformations of complex structures on Riemann curves
A. Levin, M. Olshanetsky
Starting with a Lie algebroid over a space we lift its action to the canonical transformations on the affine bundle over the cotangent bundle . Such…
Noncommutative extensions of elliptic integrable Euler-Arnold tops and Painleve VI equation
A. Levin, M. Olshanetsky, A. Zotov
In this paper we suggest generalizations of elliptic integrable tops to matrix-valued variables. Our consideration is based on -matrix description which provides Lax pairs in te…
Yang-Baxter equations with two Planck constants
A. Levin, M. Olshanetsky, A. Zotov
We consider Yang-Baxter equations arising from its associative analog and study corresponding exchange relations. They generate finite-dimensional quantum algebras which have form…
Performance of the CMS High Granularity Calorimeter prototype to charged pion beams of 20300 GeV/c
B. Acar, G. Adamov, C. Adloff +454
The upgrade of the CMS experiment for the high luminosity operation of the LHC comprises the replacement of the current endcap calorimeter by a high granularity sampling calorimete…
Observation of the rare decay from the combined analysis of CMS and LHCb data
The CMS, LHCb Collaborations, : +2807
A joint measurement is presented of the branching fractions and in proton-proton collisions at the LHC by the CMS and LHCb experiments. The data…
2d Integrable systems, 4d Chern-Simons theory and Affine Higgs bundles
A. Levin, M. Olshanetsky, A. Zotov
In this short review we compare constructions of 2d integrable models by means of two gauge field theories. The first one is the 4d Chern-Simons (4d-CS) theory proposed by Costello…
Response of a CMS HGCAL silicon-pad electromagnetic calorimeter prototype to 20-300 GeV positrons
B. Acar, G. Adamov, C. Adloff +385
The Compact Muon Solenoid Collaboration is designing a new high-granularity endcap calorimeter, HGCAL, to be installed later this decade. As part of this development work, a protot…
Interstrip Capacitances of the Readout Board used in Large Triple-GEM Detectors for the CMS Muon Upgrade
M. Abbas, M. Abbrescia, H. Abdalla +178
We present analytical calculations, Finite Element Analysis modeling, and physical measurements of the interstrip capacitances for different potential strip geometries and dimensio…
Quasi-compact Higgs bundles and Calogero-Sutherland systems with two types spins
S. Kharchev, A. Levin, M. Olshanetsky +1
We define the quasi-compact Higgs -bundles over singular curves introduced in our previous paper for the Lie group SL(). The quasi-compact structure means that th…
Double coset construction of moduli space of holomorphic bundles and Hitchin systems
A. Levin, M. Olshanetsky
We present a description of the moduli space of holomorphic vector bundles over Riemann curves as a double coset space which is differ from the standard loop group construction. Ou…
Lie Algebroids and generalized projective structures on Riemann surfaces
A. Levin, M. Olshanetsky
The space of generalized projective structures on a Riemann surface of genus g with n marked points is the affine space over the cotangent bundle to the space of SL(N)-opers.…
Modular Arrangements
A. Levin, N. Sakharova
The modular curves serve as excellent objects for testing conjectures in arithmetic geometry. They possess a natural geometric definition in contrast with rather nontrivial structu…
Painleve Field Theory
G. Aminov, S. Arthamonov, A. Levin +2
We propose multidimensional versions of the Painlevé VI equation and its degenerations. These field theories are related to the isomonodromy problems of flat holomorphic infinite…
Bihamiltonian structures and quadratic algebras in hydrodynamics and on non-commutative torus
B. Khesin, A. Levin, M. Olshanetsky
We demonstrate the common bihamiltonian nature of several integrable systems. The first one is an elliptic rotator that is an integrable Euler-Arnold top on the complex group GL(N)…
Non-autonomous Hamiltonian systems related to highest Hitchin integrals
A. Levin, M. Olshanetsky
We describe non-autonomous Hamiltonian systems coming from the Hitchin integrable systems. The Hitchin integrals of motion depend on the W-structures of the basic curve. The parame…
Q-balls with scalar charges
V. Rubakov, A. Levin
We consider Friedberg-Lee-Sirlin Q-balls in a (3+1)-dimensional model with vanishing scalar potential of one of the fields. The Q-ball is stabilized by the gradient energy of this…
Aharonov-Bohm Effect in Cyclotron and Synchrotron Radiations
V. G. Bagrov, D. M. Gitman, A. Levin +1
We study the impact of Aharonov-Bohm solenoid on the radiation of a charged particle moving in a constant uniform magnetic field. With this aim in view, exact solutions of Klein-Go…
Experimental access to Transition Distribution Amplitudes with the PANDA experiment at FAIR
PANDA Collaboration, B. P. Singh, W. Erni +532
Baryon-to-meson Transition Distribution Amplitudes (TDAs) encoding valuable new information on hadron structure appear as building blocks in the collinear factorized description fo…
Quantum Baxter-Belavin R-matrices and multidimensional Lax pairs for Painleve VI
A. Levin, M. Olshanetsky, A. Zotov
The quantum elliptic -matrices of Baxter-Belavin type satisfy the associative Yang-Baxter equation in . The latter can be considered as nonco…
Painlevé - Calogero correpondence
A. Levin, M. Olshanetsky
It is proved that the Painlevé VI equation $(PVI_{\al,\be,\ga,\de})$ for the special values of constants $(\al=\frac{ν^2}{4},\be=-\frac{ν^2}{4}, \ga=\frac{ν^2}{4},\de=\f1{2}-\f…
Painleve VI, Rigid Tops and Reflection Equation
A. Levin, M. Olshanetsky, A. Zotov
We show that the Painlev{é} VI equation has an equivalent form of the non-autonomous Zhukovsky-Volterra gyrostat. This system is a generalization of the Euler top in and inc…
Odd supersymmetrization of elliptic R-matrices
A. Levin, M. Olshanetsky, A. Zotov
We study a general ansatz for an odd supersymmetric version of the Kronecker elliptic function, which satisfies the genus one Fay identity. The obtained result is used for construc…
Characteristic Classes of SL(N)-Bundles and Quantum Dynamical Elliptic R-Matrices
A. Levin, M. Olshanetsky, A. Smirnov +1
We discuss quantum dynamical elliptic R-matrices related to arbitrary complex simple Lie group G. They generalize the known vertex and dynamical R-matrices and play an intermediate…
Integrable deformations of principal chiral model from solutions of associative Yang-Baxter equation
D. Domanevsky, A. Levin, M. Olshanetsky +1
We describe deformations of the classical principle chiral model and 1+1 Gaudin model related to Lie group. The deformations are generated by -matrices satisfying t…
Performance of a Triple-GEM Demonstrator in Collisions at the CMS Detector
M. Abbas, M. Abbrescia, H. Abdalla +178
After the Phase-2 high-luminosity upgrade to the Large Hadron Collider (LHC), the collision rate and therefore the background rate will significantly increase, particularly in the…
Modeling the triple-GEM detector response to background particles for the CMS Experiment
M. Abbas, M. Abbrescia, H. Abdalla +186
An estimate of environmental background hit rate on triple-GEM chambers is performed using Monte Carlo (MC) simulation and compared to data taken by test chambers installed in the…
Calogero-Sutherland system with two types interacting spins
S. Kharchev, A. Levin, M. Olshanetsky +1
We consider the classical Calogero-Sutherland system with two types of interacting spin variables. It can be reduced to the standard Calogero-Sutherland system, when one of the spi…
Planck Constant as Spectral Parameter in Integrable Systems and KZB Equations
A. Levin, M. Olshanetsky, A. Zotov
We construct special rational Knizhnik-Zamolodchikov-Bernard (KZB) equations with punctures by deformation of the corresponding quantum rationa…
Construction and commissioning of CMS CE prototype silicon modules
B. Acar, G. Adamov, C. Adloff +327
As part of its HL-LHC upgrade program, the CMS Collaboration is developing a High Granularity Calorimeter (CE) to replace the existing endcap calorimeters. The CE is a sampling cal…
Technical Design Report for the PANDA Endcap Disc DIRC
Panda Collaboration, F. Davi, W. Erni +460
PANDA (anti-Proton ANnihiliation at DArmstadt) is planned to be one of the four main experiments at the future international accelerator complex FAIR (Facility for Antiproton and I…
PANDA Phase One
G. Barucca, F. Davì, G. Lancioni +421
The Facility for Antiproton and Ion Research (FAIR) in Darmstadt, Germany, provides unique possibilities for a new generation of hadron-, nuclear- and atomic physics experiments. T…
Odd supersymmetric Kronecker elliptic function and Yang-Baxter equations
A. Levin, M. Olshanetsky, A. Zotov
We introduce an odd supersymmetric version of the Kronecker elliptic function. It satisfies the genus one Fay identity and supersymmetric version of the heat equation. As an applic…
Feasibility studies of time-like proton electromagnetic form factors at PANDA at FAIR
PANDA Collaboration, B. Singh, W. Erni +502
Simulation results for future measurements of electromagnetic proton form factors at \PANDA (FAIR) within the PandaRoot software framework are reported. The statistical precision w…
Relative luminosity measurement of the LHC with the ATLAS forward calorimeter
A. Afonin, A. V. Akimov, T. Barillari +76
In this paper it is shown that a measurement of the relative luminosity changes at the LHC may be obtained by analysing the currents drawn from the high voltage power supplies of t…
Feasibility study for the measurement of TDAs at PANDA in
PANDA Collaboration, B. Singh, W. Erni +508
The exclusive charmonium production process in annihilation with an associated meson is studied in the framework of QCD collinear factoriza…
Classical integrable systems and soliton equations related to eleven-vertex R-matrix
A. Levin, M. Olshanetsky, A. Zotov
In our recent paper we suggested a natural construction of the classical relativistic integrable tops in terms of the quantum -matrices. Here we study the simplest case -- the 1…
Geometry of Higgs bundles over elliptic curves related to automorphisms of simple Lie algebras, Calogero-Moser systems and KZB equations
A. Levin, M. Olshanetsky, A. Zotov
We construct twisted Calogero-Moser (CM) systems with spins as the Hitchin systems derived from the Higgs bundles over elliptic curves, where transitions operators are defined by a…
Characteristic Classes and Integrable Systems. General Construction
A. Levin, M. Olshanetsky, A. Smirnov +1
We consider topologically non-trivial Higgs bundles over elliptic curves with marked points and construct corresponding integrable systems. In the case of one marked point we call…
Relativistic Classical Integrable Tops and Quantum R-matrices
A. Levin, M. Olshanetsky, A. Zotov
We describe classical top-like integrable systems arising from the quantum exchange relations and corresponding Sklyanin algebras. The Lax operator is expressed in terms of the qua…
The DAQ system of the 12,000 Channel CMS High Granularity Calorimeter Prototype
B. Acar, G. Adamov, C. Adloff +327
The CMS experiment at the CERN LHC will be upgraded to accommodate the 5-fold increase in the instantaneous luminosity expected at the High-Luminosity LHC (HL-LHC). Concomitant wit…