English
Related papers

Related papers: Polarized Proton Beams from Laser-induced Plasmas

200 papers

In this paper, we explore the possibility of measuring the complete polarizations of cosmic photons $\gamma$ and the polarizations of cosmic electrons $e^{-}$ and positrons $e^{+}$. Our innovative Vector Meson Photo-production induced…

High Energy Physics - Phenomenology · Physics 2023-07-04 Dart-yin A. Soh , Zhaoyi Qu

We explore a plasma based analogue of a helical undulator capable of providing circularly and elliptically polarised betatron radiation. We focus on ionisation injection configurations and in the conditions where the laser pulse driver can…

Plasma Physics · Physics 2016-01-19 J. Vieira , J. Martins , U. Sinha

It is shown that in the experiments dedicated for producing of polarized beams of antiprotons during their passage through a polarized gas target placed in a storage ring it is possible to measure not only spin-dependent total…

High Energy Physics - Phenomenology · Physics 2011-01-18 V. G. Baryshevsky

Recoil proton polarization observables were measured for both the p($\vec {\rm e}$,e$^\prime\vec{\rm p}\,$) and d($\vec {\rm e}$,e$^\prime\vec{\rm p}\,)$n reactions at two values of Q$^2$ using a newly commissioned proton Focal Plane…

A new technique based on superposition of two speckle patterns is proposed and demonstrated for controlled modulation of the spatial polarization distribution of the resultant speckle. It is demonstrated both theoretically and…

Optics · Physics 2021-11-15 Abhijit Roy , Rakesh K. Singh , Maruthi M. Brundavanam

We propose a method for polarising antiprotons in a storage ring by means of a polarised positron beam moving parallel to the antiprotons. If the relative velocity is adjusted to $v/c \approx 0.002$ the cross section for spin-flip is as…

Accelerator Physics · Physics 2009-02-19 Th. Walcher , H. Arenhoevel , K. Aulenbacher , R. Barday , A. Jankowiak

The laser-driven acceleration of high quality proton beams from a double-layer target, comprised of a high-Z ion layer and a thin disk of hydrogen, is investigated with three-dimensional particle-in-cell simulations in the case of oblique…

Plasma Physics · Physics 2008-11-26 T. Morita , T. Zh. Esirkepov , S. V. Bulanov , J. Koga , M. Yamagiwa

Particle acceleration using ultraintense, ultrashort laser pulses is one of the most attractive topics in relativistic laser-plasma research. We report proton/ion acceleration in the intensity range of 5x1019 W/cm2 to 3.3x1020 W/cm2 by…

The new method for producing of the polarized relativistic positrons is suggested. A beam of unpolarized positrons accelerated up to a few GeV can be polarized during a head-on collision with an intense circularly polarized lazer wave.…

Accelerator Physics · Physics 2007-05-23 A. P. Potylitsyn

We are developing a neutron polarizer with polarized $^3$He gas, referred to as a $^3$He spin filter, based on the Spin Exchange Optical Pumping (SEOP) for polarized neutron scattering experiments at Materials and Life Science Experimental…

Polarized targets evolved into indispensable tools in particle and nuclear physics. However, the polarized solid target is degraded by high-intense beam irradiation, known as radiation damage due to target heating and radical generation. We…

The TeV energy region is currently being explored by both the ATLAS and CMS experiments of the Large Hadron Collider and phenomena beyond the Standard Model are extensively searched for. Large fractions of the parameter space of many models…

High Energy Physics - Phenomenology · Physics 2014-05-20 Benjamin Fuks , Josselin Proudom , Juan Rojo , Ingo Schienbein

We show that ionization of noble gas atoms by strong infrared circularly polarized laser field under standard exerimental conditions can yield electrons with up to 100% spin polarization in energy resolved measurements. Spin polarization…

Atomic Physics · Physics 2013-07-18 Ingo Barth , Olga Smirnova

The full exploitation of the physics potential of a future Linear Collider requires the development of polarised positron beams. A very promising scheme for the technical realisation is the use of helical undulators, generating circular…

High Energy Physics - Phenomenology · Physics 2011-09-13 Gudrid Moortgat-Pick

A polarized, internal electron target gradually polarizes a proton beam in a storage ring. Here, we derive the spin-transfer cross section for $\vec e\,(p,\vec p\, )e$\ scattering. A recent measurement of the polarizing effect of a…

Nuclear Theory · Physics 2009-09-25 C. J. Horowitz , H. O. Meyer

For the production of a polarized antiproton beam various methods have been suggested including the possibility that antiprotons may be produced polarized which will be checked experimentally. The polarization of antiprotons produced under…

Although several laser-plasma-based methods have been proposed for generating energetic electrons, positrons and {\gamma}-photons, manipulation of their microstructures is still challenging, and their angular momentum control has not yet…

Plasma Physics · Physics 2018-08-29 Xing-Long Zhu , Tong-Pu Yu , Min Chen , Su-Ming Weng , Zheng-Ming Sheng

Fully polarized nonlinear Breit-Wheeler pair production from a beam of polarized seed photons is investigated in pulsed plane-wave backgrounds. The particle (electron and positron) spin and photon polarization are comprehensively described…

High Energy Physics - Phenomenology · Physics 2022-04-06 Suo Tang

Ultrafast extreme ultraviolet (XUV) sources with a controllable polarization state are powerful tools for investigating the structural and electronic as well as the magnetic properties of materials. However, such light sources are still…

Plasma Physics · Physics 2016-08-18 Zi-Yu Chen , Alexander Pukhov

We investigate Collisionless Shock Acceleration of spin-polarized ${}^3$He for laser pulses with normalized vector potentials in the range $a_0 = 100-200$. The setup utilized in the 2D-PIC simulations consists of a solid Carbon foil that is…

Plasma Physics · Physics 2024-12-10 Lars Reichwein , Xiaofei Shen , Alexander Pukhov , Markus Büscher
‹ Prev 1 3 4 5 6 7 10 Next ›