The crab waist collision scheme has been successfully tested at the e(+)e(-) Frascati collider during the 2008-2009 runs: the gain in luminosity is consistent with the predictions while the background remains sustainable. Among the various inputs used by the DA Phi NE accelerator team to steer this new machine and improve its performances, key online information, absolute luminosity and background level measurements, has been provided by the LUMI detectors: a Bhabha calorimeter and two gamma bremsstrahlung proportional counters. This paper focuses on the results achieved with this experimental setup, described in details in another article. (C) 2010 Elsevier B.V. All rights reserved.
Luminosity and background measurements at the e(+)e(-) DA Phi NE collider upgraded with the crab waist scheme RID F-6186-2010 RID A-6640-2010 RID A-4857-2011
SCHIOPPA, Marco;
2010-01-01
Abstract
The crab waist collision scheme has been successfully tested at the e(+)e(-) Frascati collider during the 2008-2009 runs: the gain in luminosity is consistent with the predictions while the background remains sustainable. Among the various inputs used by the DA Phi NE accelerator team to steer this new machine and improve its performances, key online information, absolute luminosity and background level measurements, has been provided by the LUMI detectors: a Bhabha calorimeter and two gamma bremsstrahlung proportional counters. This paper focuses on the results achieved with this experimental setup, described in details in another article. (C) 2010 Elsevier B.V. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
