Results 11 to 20 of about 131,717 (268)

Measurements of the beam-beam interaction at PEP-II [PDF]

open access: yesPACS2001. Proceedings of the 2001 Particle Accelerator Conference (Cat. No.01CH37268), 2002
The beam-beam interaction is one of the performance limitations at PEP-II. The peak luminosity in PEP-II has reached 3.4 /spl times/ 10/sup 33//cm/sup 2//s with 693 bunches with a positron current of 1.6 A and an electron current of 0.84 A. The beam-beam tune shift limits have exceeded 0.06 horizontally and 0.03 vertically.
Seeman, J. T.   +18 more
openaire   +2 more sources

A new model for the collective beam–beam interaction

open access: yesNew Journal of Physics, 2007
Submitted to New Journal of ...
Ellison, J. A.   +2 more
openaire   +3 more sources

Simulations of beam-beam and beam-wire interactions in RHIC

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2009
The beam-beam interaction is one of the dominant sources of emittance growth and luminosity lifetime deterioration. A current-carrying wire has been proposed to compensate long-range beam-beam effects in the LHC and strong localized long-range beam-beam ...
Hyung J. Kim   +3 more
doaj   +1 more source

Beam offset due to beam-beam interactions at a warm linear collider

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2005
At a warm linear collider the short time interval at which bunches will pass near each other in the interaction region may lead to significant alteration of the bunches positions.
Nicolas Delerue   +2 more
doaj   +1 more source

Studies of the beam-beam interaction for the LHC [PDF]

open access: yesProceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366), 2003
We have used the beam-beam simulation code CBI to study the beam-beam interaction for the LHC. We find that for nominal LHC parameters, and assuming only one bunch per beam, there are no collective (coherent) beam-beam instabilities. We have investigated the effect of sweeping one of the beams around the other (a procedure that could be used as a ...
Krishnagopal, S.   +2 more
openaire   +2 more sources

Beam-beam effects at the Fermilab Tevatron: Theory

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2004
The Tevatron in Run II is operating with three trains of 12 bunches each. Long-range beam-beam interactions have been significant sources of beam loss and lifetime limitations of antiprotons.
T. Sen, B. Erdelyi, M. Xiao, V. Boocha
doaj   +1 more source

A study on beam-beam interactions for BTCF [PDF]

open access: yesProceedings of the 1997 Particle Accelerator Conference (Cat. No.97CH36167), 2002
A study on beam-beam interactions in the proposed Beijing Tau-Charm Factory (BTGF) is carried out. Various parameters of the collider, such as tunes, beam-beam parameters, bunch length, beta functions at the interaction point (IP), crossing angle and vertical dispersion at IP, are examined.
C. Zhang, N. Huang, K. Hirata
openaire   +1 more source

Transverse mode coupling instability of colliding beams

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2014
In high brightness circular colliders, coherent and incoherent beam dynamics are dominated by beam-beam interactions. It is generally assumed that the incoherent tune spread introduced by the beam-beam interactions is sufficiently large to cure any ...
S. White   +3 more
doaj   +1 more source

Human-Human Hand Interactions Aid Balance During Walking by Haptic Communication

open access: yesFrontiers in Robotics and AI, 2021
Principles from human-human physical interaction may be necessary to design more intuitive and seamless robotic devices to aid human movement. Previous studies have shown that light touch can aid balance and that haptic communication can improve ...
Mengnan Wu   +5 more
doaj   +1 more source

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