scholarly journals Particle dynamics and its consequences in wakefield acceleration in a high energy collider

1998 ◽  
Author(s):  
S. Cheshkov ◽  
T. Tajima ◽  
W. Horton ◽  
K. Yokoya
Keyword(s):  
High Energy ◽  
Particle Dynamics ◽  
Wakefield Acceleration ◽  
High Energy Collider

INELASTIC PHOTOPRODUCTION OF W-BOSON

1998 ◽  
Vol 13 (25) ◽  
pp. 2013-2020
Author(s):  
S. M. KHAIRUL ALAM ◽  
A. M. HARUN AR RASHID
Keyword(s):  
Differential Cross Section ◽  
Cross Section ◽  
W Boson ◽  
Electric Quadrupole ◽  
Parton Model ◽  
High Energy ◽  
Electric Quadrupole Moment ◽  
Photoproduction Process ◽  
Quark Parton Model ◽  
High Energy Collider

We study the WWγ vertex through the process γq→Wq′ where q denotes the quark at a future high energy collider. The differential cross-section for the photoproduction process γq→Wq′ is computed with both anomalous magnetic moment κ and electric quadrupole moment λ for the W-boson. The deep inelastic photoproduction of W± is also calculated in a quark-parton model.

scholarly journals High energy collider physics. Final report

1997 ◽  
Author(s):  
R.C. Ruchti ◽  
N.N. Biswas ◽  
M.R. Wayne
Keyword(s):  
High Energy ◽  
Final Report ◽  
Collider Physics ◽  
High Energy Collider

scholarly journals Fundamentals and Applications of Hybrid LWFA-PWFA

2019 ◽  
Vol 9 (13) ◽  
pp. 2626 ◽  
Author(s):  
Bernhard Hidding ◽  
Andrew Beaton ◽  
Lewis Boulton ◽  
Sebastién Corde ◽  
Andreas Doepp ◽  
...  
Keyword(s):  
Laser Pulses ◽  
Building Blocks ◽  
High Energy ◽  
Light Sources ◽  
High Quality ◽  
Hybrid Approaches ◽  
Wakefield Acceleration ◽  
Very High Energy ◽  
Energy Gains ◽  
Plasma Wakefield

Fundamental similarities and differences between laser-driven plasma wakefield acceleration (LWFA) and particle-driven plasma wakefield acceleration (PWFA) are discussed. The complementary features enable the conception and development of novel hybrid plasma accelerators, which allow previously not accessible compact solutions for high quality electron bunch generation and arising applications. Very high energy gains can be realized by electron beam drivers even in single stages because PWFA is practically dephasing-free and not diffraction-limited. These electron driver beams for PWFA in turn can be produced in compact LWFA stages. In various hybrid approaches, these PWFA systems can be spiked with ionizing laser pulses to realize tunable and high-quality electron sources via optical density downramp injection (also known as plasma torch) or plasma photocathodes (also known as Trojan Horse) and via wakefield-induced injection (also known as WII). These hybrids can act as beam energy, brightness and quality transformers, and partially have built-in stabilizing features. They thus offer compact pathways towards beams with unprecedented emittance and brightness, which may have transformative impact for light sources and photon science applications. Furthermore, they allow the study of PWFA-specific challenges in compact setups in addition to large linac-based facilities, such as fundamental beam–plasma interaction physics, to develop novel diagnostics, and to develop contributions such as ultralow emittance test beams or other building blocks and schemes which support future plasma-based collider concepts.

scholarly journals Single-Shot Electro-Optic Sampling on the Temporal Structure of Laser Wakefield Accelerated Electrons

Crystals ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 640
Author(s):  
Kai Huang ◽  
Hideyuki Kotaki ◽  
Michiaki Mori ◽  
Yukio Hayashi ◽  
Nobuhiko Nakanii ◽  
...  
Keyword(s):  
Real Time ◽  
Temporal Structure ◽  
High Energy ◽  
High Energy Particle ◽  
Single Shot ◽  
Generation Process ◽  
Laser Wakefield Acceleration ◽  
Wakefield Acceleration ◽  
Electro Optic ◽  
Laser Wakefield

Particle acceleration driven by a high power Ti: sapphire laser has invoked great interest worldwide because of the ultrahigh acceleration gradient. For the aspect of electron acceleration, electron beams with energies over GeV have been generated using the laser wakefield acceleration mechanism. For the optimization of the electron generation process, real-time electron parameter monitors are necessary. One of the key parameters of a high energy particle beam is the temporal distribution, which is closely related with the timing resolution in a pump-probe application. Here, we introduced the electro-optic sampling method to laser wakefield acceleration. Real-time multibunch structures were observed. Careful calculations on the physical processes of signal generation in an electro-optic crystal were performed. Discussions of the methodology are elaborated in detail.

Self-modulated wakefield acceleration in a centimetre self-guiding channel

2012 ◽  
Vol 78 (4) ◽  
pp. 433-440 ◽  
Author(s):  
C. KAMPERIDIS ◽  
C. BELLEI ◽  
N. BOURGEOIS ◽  
M. C. KALUZA ◽  
K. KRUSHELNICK ◽  
...  
Keyword(s):  
Focal Spot ◽  
Spot Size ◽  
High Energy ◽  
Energy Spectra ◽  
Focal Spot Size ◽  
Electron Bunches ◽  
Gas Jets ◽  
Wakefield Acceleration ◽  
Helium Gas ◽  
Broad Energy

AbstractSelf-modulated wakefield acceleration was investigated at densities down to ~4 × 1018 cm−3 by propagating the 50 TW 300 fs LULI laser in helium gas jets at lengths up to 1 cm. Long interaction lengths were achieved by closer matching of the initial focal spot size to the matched spot size for these densities. Electrons with energies extending to 180 MeV were observed in broad energy spectra which show some evidence for non-Maxwellian features at high energy. Two-dimensional PIC simulations indicate that the intial laser pulse breaks up into small pulselets that are eventually compressed and focused inside the first few plasma periods, leading to a ‘bubble-like’ acceleration of electron bunches.

scholarly journals ColliderBit: a GAMBIT module for the calculation of high-energy collider observables and likelihoods

2017 ◽  
Vol 77 (11) ◽  
Author(s):  
Csaba Balázs ◽  
◽  
Andy Buckley ◽  
Lars A. Dal ◽  
Ben Farmer ◽  
...  
Keyword(s):  
High Energy ◽  
High Energy Collider

ANALYTIC EXPRESSIONS OF CROSS SECTIONS, ASYMMETRIES AND W DENSITY MATRICES FOR e+e− → W+W− WITH GENERAL THREE-BOSON COUPLINGS

1993 ◽  
Vol 08 (19) ◽  
pp. 3285-3320 ◽  
Author(s):  
G. GOUNARIS ◽  
J. LAYSSAC ◽  
G. MOULTAKA ◽  
F. M. RENARD
Keyword(s):  
Cross Sections ◽  
High Energy ◽  
Spin Density Matrix ◽  
Matrix Elements ◽  
Density Matrices ◽  
Independent Analysis ◽  
Analytic Expressions ◽  
Complete Set ◽  
Model Independent ◽  
High Energy Collider

We establish explicit analytic expressions for the e+e− → W+W− cross sections, asymmetries and W± spin density matrix elements in terms of the complete set of anomalous three-boson couplings. This should be useful for performing a model-independent analysis of LEP 2 or future high energy collider data. Sensitivities to the various three-boson couplings are discussed and possible ways to disentangle their effects are proposed.

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