A charged particle passing through or near a narrow optical fiber induces, by polarisation, coherent light guided by the fiber. In the limit of zero crossing angle, the radiation tends towards a...
A charged particle passing through or near a narrow optical fiber induces, by polarisation, coherent light guided by the fiber. In the limit of zero crossing angle, the radiation tends towards a...
A charged particle passing through or near a narrow optical fiber induces, by polarisation, coherent light guided by the fiber. In the limit of zero crossing angle, the radiation tends towards a...
A charged particle passing through or near a narrow optical fiber induces, by polarisation, coherent light guided by the fiber. In the limit of zero crossing angle, the radiation tends towards a...
Positivity domains for pairs of triples of spin observables (2008)
Positivity restrains the allowed domains for pairs or triples of spin observables in polarised reactions. Various domain shapes in ${1\over2}+{1\over2}\to{1\over2}+{1\over2}$ reactions are displayed....
Classical and quantum constraints in spin physics (2008)
Constraints on spin observables coming from discrete symmetries such as P, C, T and identical particles may be divided in two types: 1) classical ones, which insure the invariance of the cross...
Positivity domains for pairs of triples of spin observables (2008)
Positivity restrains the allowed domains for pairs or triples of spin observables in polarised reactions. Various domain shapes in ${1\over2}+{1\over2}\to{1\over2}+{1\over2}$ reactions are displayed....
Classical and quantum constraints in spin physics (2008)
Constraints on spin observables coming from discrete symmetries such as P, C, T and identical particles may be divided in two types: 1) classical ones, which insure the invariance of the cross...
Positivity domains for pairs of triples of spin observables (2008)
Positivity restrains the allowed domains for pairs or triples of spin observables in polarised reactions. Various domain shapes in ${1\over2}+{1\over2}\to{1\over2}+{1\over2}$ reactions are displayed....
Classical and quantum constraints in spin physics (2008)
Constraints on spin observables coming from discrete symmetries such as P, C, T and identical particles may be divided in two types: 1) classical ones, which insure the invariance of the cross...
Positivity domains for pairs of triples of spin observables (2008)
Positivity restrains the allowed domains for pairs or triples of spin observables in polarised reactions. Various domain shapes in ${1\over2}+{1\over2}\to{1\over2}+{1\over2}$ reactions are displayed....
Classical and quantum constraints in spin physics (2008)
Constraints on spin observables coming from discrete symmetries such as P, C, T and identical particles may be divided in two types: 1) classical ones, which insure the invariance of the cross...
The High-Z hydrogen-like atom: a model for polarized structure functions (2007)
The Dirac equation offers a precise analytical description of relativistic two-particle bound states, when one of the constituent is very heavy and radiative corrections are neglected. Looking at the...
The High-Z hydrogen-like atom: a model for polarized structure functions (2007)
The Dirac equation offers a precise analytical description of relativistic two-particle bound states, when one of the constituent is very heavy and radiative corrections are neglected. Looking at the...
The High-Z hydrogen-like atom: a model for polarized structure functions (2007)
The Dirac equation offers a precise analytical description of relativistic two-particle bound states, when one of the constituent is very heavy and radiative corrections are neglected. Looking at the...
The High-Z hydrogen-like atom: a model for polarized structure functions (2007)
The Dirac equation offers a precise analytical description of relativistic two-particle bound states, when one of the constituent is very heavy and radiative corrections are neglected. Looking at the...
Particle Refraction, Reflection and Channeling by Laser Beams (2007)
Artru, X., Ispirian, K. A., Ispiryan, M. K.
It is shown that the charged particles are refracted and reflected on the boundary of field free and laser field regions in vacuum. Simple and transparent estimates are given which show the...
Advantages of axially aligned crystals used in positron production at future linear colliders (2007)
Artru, X., Chehab, R., Chevallier, M., Strakhovenko, V.
The characteristics of the electron-photon showers initiated by 2 to 10 GeV electrons aligned along the ⟨111⟩ axis of tungsten crystals are compared with those for the amorphous...
Advantages of axially aligned crystals used in positron production at future linear colliders (2007)
Artru, X., Chehab, R., Chevallier, M., Strakhovenko, V.
The characteristics of the electron-photon showers initiated by 2 to 10 GeV electrons aligned along the ⟨111⟩ axis of tungsten crystals are compared with those for the amorphous...
Advantages of axially aligned crystals used in positron production at future linear colliders (2007)
Artru, X., Chehab, R., Chevallier, M., Strakhovenko, V.
The characteristics of the electron-photon showers initiated by 2 to 10 GeV electrons aligned along the ⟨111⟩ axis of tungsten crystals are compared with those for the amorphous...
Positivity constraints on spin observables in exclusive pseudoscalar meson photoproduction (2007)
Artru, X., Richard, J.M., Soffer, J.
Positivity constraints have proved to be important for spin observables of exclusive reactions involving polarized initial and final particles. Attention is focused in this note on the...
Photon production by charged particles in narrow optical fibers (2006)
A charged particle passing through or by an optical fiber induces emission of light guided by the fiber. The formula giving the spontaneous emission amplitude are given in the general case when the...
Photon production by charged particles in narrow optical fibers (2006)
A charged particle passing through or by an optical fiber induces emission of light guided by the fiber. The formula giving the spontaneous emission amplitude are given in the general case when the...
Photon production by charged particles in narrow optical fibers (2006)
A charged particle passing through or by an optical fiber induces emission of light guided by the fiber. The formula giving the spontaneous emission amplitude are given in the general case when the...
Photon production by charged particles in narrow optical fibers (2006)
A charged particle passing through or by an optical fiber induces emission of light guided by the fiber. The formula giving the spontaneous emission amplitude are given in the general case when the...
Design of a Polarised Positron Source Based on Laser Compton Scattering (2006)
Araki, S., Higashi, Y., Honda, Y., Kurihara, Y., Kuriki, M., Okugi, T., ...
We describe a scheme for producing polarised positrons at the ILC from polarised X-rays created by Compton scattering of a few-GeV electron beam off a CO2 or YAG laser. This scheme is very energy...
The relativistic hydrogen atom: a theoretical laboratory for structure functions (2006)
Thanks to the Dirac equation, the hydrogen-like atom at high $Z$ offers a precise model of relativistic bound state, allowing to test properties of unpolarized and polarized structure functions...
The relativistic hydrogen atom: a theoretical laboratory for structure functions (2006)
Thanks to the Dirac equation, the hydrogen-like atom at high $Z$ offers a precise model of relativistic bound state, allowing to test properties of unpolarized and polarized structure functions...
The relativistic hydrogen atom: a theoretical laboratory for structure functions (2006)
Thanks to the Dirac equation, the hydrogen-like atom at high $Z$ offers a precise model of relativistic bound state, allowing to test properties of unpolarized and polarized structure functions...
CLIC Polarized Positron Source Based on Laser Compton Scattering (2006)
Zimmermann, Frank, Araki, S, Artru, X, Braun, H, Bulyak, E, Chehab, R, ...
We describe a possible layout and parameters of a polarized positron source for CLIC, where the positrons are produced from polarized gamma rays created by Compton scattering of a 1.3-GeV electron...
Honkavaara, K., Artru, X., Chehab, R., Variola, A.
The interest in using optical transition radiation (OTR) in high energy (multiGeV) beam diagnostics has motivated theoretical and experimental investigations on the limitations brought by diffraction...
Impact parameter profile of synchrotron radiation (2006)
The horizontal impact parameter profile of synchrotron radiation, for fixed vertical angle of the photon, is calculated. This profile is observed through an astigmatic optical system, horizontally...
Impact parameter profile of synchrotron radiation (2006)
The horizontal impact parameter profile of synchrotron radiation, for fixed vertical angle of the photon, is calculated. This profile is observed through an astigmatic optical system, horizontally...
Positivity constraints on spin observables in exclusive pseudoscalar meson photoproduction (2006)
Positivity constraints have proved to be important for spin observables of exclusive reactions involving polarized initial and final particles. Attention is focused in this note on the...
Photon production by charged particles in narrow optical fibers (2006)
A charged particle passing through or by an optical fiber induces emission of light guided by the fiber. The formula giving the spontaneous emission amplitude are given in the general case when the...
Impact parameter profile of synchrotron radiation (2005)
The horizontal impact parameter profile of synchrotron radiation, for fixed vertical angle of the photon, is calculated. This profile is observed through an astigmatic optical system, horizontally...
Impact parameter profile of synchrotron radiation (2005)
The horizontal impact parameter profile of synchrotron radiation, for fixed vertical angle of the photon, is calculated. This profile is observed through an astigmatic optical system, horizontally...
Impact parameter profile of synchrotron radiation (2005)
The horizontal impact parameter profile of synchrotron radiation, for fixed vertical angle of the photon, is calculated. This profile is observed through an astigmatic optical system, horizontally...
The relativistic hydrogen atom: a theoretical laboratory for structure functions (2005)
Thanks to the Dirac equation, the hydrogen-like atom at high $Z$ offers a precise model of relativistic bound state, allowing to test properties of unpolarized and polarized structure functions...
Summary of experimental studies at CERN on a positron source using crystal effects (2005)
Artru, X., Baier, V., Beloborodov, K., Bogdanov, A., Bukin, A., Burdin, S., ...
New kind of positron sources for future linear colliders, where the converter is a tungsten crystal oriented on the axis, has been studied at CERN in the WA103 experiment. In such sources the...
Summary of experimental studies at CERN on a positron source using crystal effects (2005)
Artru, X., Baier, V., Beloborodov, K., Bogdanov, A., Bukin, A., Burdin, S., ...
New kind of positron sources for future linear colliders, where the converter is a tungsten crystal oriented on the axis, has been studied at CERN in the WA103 experiment. In such sources the...
Summary of experimental studies at CERN on a positron source using crystal effects (2005)
Artru, X., Baier, V., Beloborodov, K., Bogdanov, A., Bukin, A., Burdin, S., ...
New kind of positron sources for future linear colliders, where the converter is a tungsten crystal oriented on the axis, has been studied at CERN in the WA103 experiment. In such sources the...
Analogy between free electron laser and channeling by crystal planes (2005)
The trapping of electrons in the ponderomotive potential wells, which governs a free electron laser or inverse free electron laser at high gain, is analogous to the channeling of charged particles by...
Analogy between free electron laser and channeling by crystal planes (2005)
The trapping of electrons in the ponderomotive potential wells, which governs a free electron laser or inverse free electron laser at high gain, is analogous to the channeling of charged particles by...
Analogy between free electron laser and channeling by crystal planes (2005)
The trapping of electrons in the ponderomotive potential wells, which governs a free electron laser or inverse free electron laser at high gain, is analogous to the channeling of charged particles by...
Constraints on spin observables in $\overline{p}p \rightarrow \overline{\Lambda}\Lambda$ (2005)
We discuss model-independent inequalities for the spin observables in the reaction $\bar\mathrm{p}\mathrm{p}\to\bar{\Lambda}\Lambda$, which have been measured at CERN with a polarised proton target.
Experimental determination of the characteristics of a positron source using channeling (2005)
Chehab, R., Cizeron, R., Sylvia, C., Baier, V., Beloborodov, K I., Bukin, A., ...
Constraints on spin observables in $\overline{p}p \rightarrow \overline{\Lambda}\Lambda$ (2005)
We discuss model-independent inequalities for the spin observables in the reaction $\bar\mathrm{p}\mathrm{p}\to\bar{\Lambda}\Lambda$, which have been measured at CERN with a polarised proton target.
Constraints on spin observables in $\overline{p}p \rightarrow \overline{\Lambda}\Lambda$ (2005)
We discuss model-independent inequalities for the spin observables in the reaction $\bar\mathrm{p}\mathrm{p}\to\bar{\Lambda}\Lambda$, which have been measured at CERN with a polarised proton target.
Generation of circularly polarized photons for a linear collider polarized positron source (2005)
Strakhovenko, V., Artru, X., Chehab, R., Chevallier, M.
Various methods of obtaining longitudinally polarized positrons for future linear colliders are reviewed. Special attention is paid to the schemes using circularly polarized high-energy photons for...
Angular distribution of radiation by relativistic electrons in a thin crystal (2005)
Artru, X., Fomin, S.P., Shul'Ga, N.F.
The results of theoretical investigation of angular distributions of radiation from a relativistic electron passing through a thin crystal at a small angle to the crystal axis are presented. The...
Generation of circularly polarized photons for a linear collider polarized positron source (2005)
Strakhovenko, V., Artru, X., Chehab, R., Chevallier, M.
Various methods of obtaining longitudinally polarized positrons for future linear colliders are reviewed. Special attention is paid to the schemes using circularly polarized high-energy photons for...
Angular distribution of radiation by relativistic electrons in a thin crystal (2005)
Artru, X., Fomin, S.P., Shul'Ga, N.F.
The results of theoretical investigation of angular distributions of radiation from a relativistic electron passing through a thin crystal at a small angle to the crystal axis are presented. The...
Generation of circularly polarized photons for a linear collider polarized positron source (2005)
Strakhovenko, V., Artru, X., Chehab, R., Chevallier, M.
Various methods of obtaining longitudinally polarized positrons for future linear colliders are reviewed. Special attention is paid to the schemes using circularly polarized high-energy photons for...
Angular distribution of radiation by relativistic electrons in a thin crystal (2005)
Artru, X., Fomin, S.P., Shul'Ga, N.F.
The results of theoretical investigation of angular distributions of radiation from a relativistic electron passing through a thin crystal at a small angle to the crystal axis are presented. The...
Design of a Polarised Positron Source Based on Laser Compton Scattering (2005)
Araki, S, Higashi, Y, Honda, Y, Kurihara, Y, Kuriki, M, Okugi, T, ...
We describe a scheme for producing polarised positrons at the ILC from polarised X-rays created by Compton scattering of a few-GeV electron beam off a CO2 or YAG laser. This scheme is very energy...
Design of a Polarised Positron Source Based on Laser Compton Scattering (2005)
Araki, S., Higashi, Y., Honda, Y., Kurihara, Y., Kuriki, M., Okugi, T., ...
We describe a scheme for producing polarised positrons at the ILC from polarised X-rays created by Compton scattering of a few-GeV electron beam off a CO2 or YAG laser. This scheme is very energy...
Duality, string model and two forward leading particle effects (2005)
The dual or string model implies that, in high-energy multiproduction, there are generally, in each hemisphere, two leading particles. Inclusive two-particle spectra from K/sup -/p, pi /sup +/p and...
Practical theory of the multilayered transition radiation detector (2005)
Artru, X, Yodh, G B, Mennessier, G
Features of the multiplayered transition radiation detector for ultrarelativistic particles are studied, including especially details of: X-ray spectrum, gamma dependence, ( gamma =Lorentz factor)...
Summary of experimental studies at CERN on a positron source using crystal effects (2005)
Artru, X, Baier, V, Beloborodov, K I, Bogdanov, A, Bukin, A, Burdin, S, ...
New kind of positron sources for future linear colliders, where the converter is a tungsten crystal oriented on the axis, has been studied at CERN in the WA103 experiment. In such sources the...
Summary of experimental studies at CERN on a positron source using crystal effects (2005)
Artru, X., Baier, V., Beloborodov, K., Bogdanov, A., Bukin, A., Burdin, S., ...
New kind of positron sources for future linear colliders, where the converter is a tungsten crystal oriented on the axis, has been studied at CERN in the WA103 experiment. In such sources the...
Analogy between free electron laser and channeling by crystal planes (2005)
The trapping of electrons in the ponderomotive potential wells, which governs a free electron laser or inverse free electron laser at high gain, is analogous to the channeling of charged particles by...
Angular distribution of radiation by relativistic electrons in a thin crystal (2005)
Artru, X., Fomin, S. P., Shul'ga, N. F.
The results of theoretical investigation of angular distributions of radiation from a relativistic electron passing through a thin crystal at a small angle to the crystal axis are presented. The...
Impact parameter profile of synchrotron radiation (2005)
The horizontal impact parameter profile of synchrotron radiation, for fixed vertical angle of the photon, is calculated. This profile is observed through an astigmatic optical system, horizontally...
The relativistic hydrogen atom: a theoretical laboratory for structure functions (2005)
Thanks to the Dirac equation, the hydrogen-like atom at high $Z$ offers a precise model of relativistic bound state, allowing to test properties of unpolarized and polarized structure functions...
Design of a Polarised Positron Source Based on Laser Compton Scattering (2005)
Araki, S., Higashi, Y., Honda, Y., Kurihara, Y., Kuriki, M., Okugi, T., ...
We describe a scheme for producing polarised positrons at the ILC from polarised X-rays created by Compton scattering of a few-GeV electron beam off a CO2 or YAG laser. This scheme is very energy...
High intensity positron sources using channeling in crystals (2005)
Artru, X., Beloborodov, K., Chehab, R., Chevallier, M., Shary, V., Strakhovenko, V.
An alternative way to the conventional positron sources - those which use high intensity electron beams impinging on thick amorphous targets - is presented here. It makes use of compound target with...
Summary of experimental studies at CERN on a positron source using crystal effects (2005)
Artru, X., Baier, V., Beloborodov, K., Bogdanov, A., Bukin, A., Burdin, S., ...
New kind of positron sources for future linear colliders, where the converter is a tungsten crystal oriented on the axis, has been studied at CERN in the WA103 experiment. In such sources the...
Generation of circularly polarized photons for a linear collider polarized positron source (2005)
Strakhovenko, V., Artru, X., Chehab, R., Chevallier, M.
Various methods of obtaining longitudinally polarized positrons for future linear colliders are reviewed. Special attention is paid to the schemes using circularly polarized high-energy photons for...
Analogy between free electron laser and channeling by crystal planes (2005)
The trapping of electrons in the ponderomotive potential wells, which governs a free electron laser or inverse free electron laser at high gain, is analogous to the channeling of charged particles by...
Carbon nanotubes and fullerites in high-energy and x-ray physics (2005)
Artru, X., Fomin, S.P., Shul'Ga, N.F., Ispirian, K.A., Zhevago, N.K.
It is demonstrated that the unique structures of carbon nantotubes and single-crystals of $C-{60}$ fullerenes may have application to X-ray, neutron and high-energy particle physics, based on...
Angular distribution of radiation by relativistic electrons in a thin crystal (2005)
Artru, X., Fomin, S.P., Shul'Ga, N.F.
The results of theoretical investigation of angular distributions of radiation from a relativistic electron passing through a thin crystal at a small angle to the crystal axis are presented. The...
The relativistic hydrogen atom: a theoretical laboratory for structure functions (2005)
Thanks to the Dirac equation, the hydrogen-like atom at high $Z$ offers a precise model of relativistic bound state, allowing to test properties of unpolarized and polarized structure functions...
Design of a Polarised Positron Source Based on Laser Compton Scattering (2005)
Araki, S., Higashi, Y., Honda, Y., Kurihara, Y., Kuriki, M., Okugi, T., ...
We describe a scheme for producing polarised positrons at the ILC from polarised X-rays created by Compton scattering of a few-GeV electron beam off a CO2 or YAG laser. This scheme is very energy...
High intensity positron sources using channeling in crystals (2005)
Artru, X., Beloborodov, K., Chehab, R., Chevallier, M., Shary, V., Strakhovenko, V.
An alternative way to the conventional positron sources - those which use high intensity electron beams impinging on thick amorphous targets - is presented here. It makes use of compound target with...
Summary of experimental studies at CERN on a positron source using crystal effects (2005)
Artru, X., Baier, V., Beloborodov, K., Bogdanov, A., Bukin, A., Burdin, S., ...
New kind of positron sources for future linear colliders, where the converter is a tungsten crystal oriented on the axis, has been studied at CERN in the WA103 experiment. In such sources the...