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Stochastic cooling requirements for a muon collider

Description: The most severe limitation to the muon production for a large-energy muon collider is the short time allowed for cooling the beam to dimensions small enough to provide reasonably high luminosity. The limitation is caused by the short lifetime of the particles that, for instance, at the energy of 100 GeV is of only 2.2 ms. Moreover, it appears to be desirable to accelerate the beam quickly, with very short bunches of about a millimeter so it can be made immediately available for the final collis… more
Date: September 27, 1993
Creator: Ruggiero, Alessandro G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The RHIC polarized source upgrade

Description: The RHIC polarized H{sup -} ion source is being upgraded to higher intensity (5-10 mA) and polarization for use in the RHIC polarization physics program at enhanced luminosity RHIC operation. The higher beam peak intensity will allow reduction of the transverse beam emittance at injection to AGS to reduce polarization losses in AGS. There is also a planned RHIC luminosity upgrade by using the electron beam lens to compensate the beam-beam interaction at collision points. This upgrade is also es… more
Date: September 27, 2010
Creator: Zelenski, A.; Atoian, G.; Davydenko, V.; Ivanov, A.; Kolmogorov, A.; Ritter, J. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Interplay of space-charge and beam-beam effects in a collider

Description: Operation of a collider at low energy or use of cooling techniques to increase beam density may result in luminosity limitation due to the space-charge effects. Understanding of such limitation became important for Low-Energy RHIC physics program with heavy ions at the center of mass energies of 5-20 GeV/nucleon. For a collider, we are interested in a long beam lifetime, which limits the allowable space-charge tune shift. An additional complication comes from the fact that ion beams are collidi… more
Date: September 27, 2010
Creator: Fedotov, A. V.; Blaskiewicz, M.; Fischer, W.; Satogata, T. & Tepikian, S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Simulation of BaBar Drift Chamber

Description: The BaBar drift chamber (DCH) is used to measure the properties of charged particles created from e{sup +}e{sup -} collisions in the PEP-II asymmetric-energy storage rings by making precise measurements of position, momentum and ionization energy loss (dE/dx). In October of 2005, the PEP-II storage rings operated with a luminosity of 10 x 10{sup 33} cm{sup -2}s{sup -1}; the goal for 2007 is a luminosity of 20 x 10{sup 33} cm{sup -2}s{sup -1}, which will increase the readout dead time, causing u… more
Date: September 27, 2006
Creator: Anderson, Rachel & /Wisconsin U., Eau Claire /SLAC
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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