LHC Performance Workshop - Chamonix 2012

Session

S08 -LHC-related projects and studies part (I)

9 Feb 2012, 17:00

Chamonix

Conveners

S08 -LHC-related projects and studies part (I)

• Roland Garoby (Chair)
• Laurette Ponce (Scientific Secretary)

Presentation materials

paper

Summary_Session8_final.docx

Summary_Session8_final.pdf

50. Will ALICE be running during the HL-LHC era?

Johannes Wessels (Westfaelische Wilhelms-Universitaet Muenster (DE))

09/02/2012, 17:00

We will present the perspectives for ion running in the HL-LHC era. In particular, ALICE is preparing a significant upgrade of its rate capabilities and further extending its particle identification potential. This paves the way for heavy ion physics at unprecedented luminosities, which are expected in the HL-LHC era with the heaviest ions. The potential interest of data-taking during high...

55. Will LHCb be running during the HL-LHC era?

Burkhard Schmidt (CERN)

09/02/2012, 17:15

The LHCb collaboration submitted in March 2011 a 'Letter of Intent' for upgrading the detector by 2018, in order to take data at a luminosity of 1-2x10^33/cm^2/s after LS2 with a detector read out at 40 MHz. A more flexible software-based triggering strategy will allow to increase trigger efficiencies especially in decays to hadronic final states. LHCb intends to take data for another 10 years...

52. HL-LHC operation with protons and ions

Oliver Bruning (CERN)

09/02/2012, 17:30

The presentation discusses potential variations of the beam and optics parameters that are compatible with the HL-LHC design goals and attempts to discuss the parameter margins required for translating the HL-LHC performance parameters to specifications for the LHC injector complex. The variations of the parameter sets attempt to incorporate the experience from the LHC operation and MD studies...

56. Can the proton injectors meet the HL-LHC requirements after LS2?

Brennan Goddard (CERN)

09/02/2012, 18:00

The LIU project has as mandate the upgrade of the LHC injector chain to match the requirements of HL-LHC. The present planning assumes that the upgrade work will be completed in LS2, for commissioning in the following operational year. The known limitations in the different injectors are described, together with the various upgrades planned to improve the performance. The expected performance...

57. Necessary LIU studies in the injectors during 2012

Giovanni Rumolo (CERN)

09/02/2012, 18:30

A significant fraction of the Machine Development (MD) time in the LHC injectors in 2011 was devoted to the study of the intensity limitations in the injectors (e.g. space charge effects in PS and SPS, electron cloud effects in the PS and SPS, single bunch and multi-bunch instabilities in PS and SPS, emittance preservation across the injector chain, etc.). The main results achieved in 2011...

58. SPS: scrubbing or coating?-

Jose Miguel Jimenez (CERN)

09/02/2012, 19:00

The operation of the SPS with high intensity bunched beams is limited by the electron cloud building-up in both the arcs and long straight sections. Two consolidation options have been considered: mitigation of the electron cloud using coatings or relying, as before, on the scrubbing runs. A status report on both options will be given with a particular emphasis on measurements plans for 2012...

60. Plans for ions in the injector complex

Django Manglunki (CERN)

09/02/2012, 19:30

The heavy ion beams required during the HL-LHC era will imply significant modifications to the existing injector chain. We review the various options, highlighting the importance of an early definition of the future needs and keeping in mind the compatibility with the rest of the future CERN physics programme.