CERN Logo

LBS

 LHC logo

LBS stands for LHC Background Study Group and also covers more generally beam conditions in the LHC relevant for the experiments, including luminosity optimisation and calibration.

LBS meetings are open and can be found on indico.

If you wish to subscribe to the LBS mailing list please use the following link
https://e-groups.cern.ch/e-groups/Egroup.do?egroupId=144007

Chairpersons: Helmut Burkhardt, Roderik Bruce

Comtact persons from the Experiments :
ALICE : Antonello Di Mauro, Andrea Alici, Hartmut Hillemanns
ATLAS : Mika Huhtinen, Antonello Sbrizzi, Saverio D'Auria
CMS : Anne Dabrowski, Dragoslav Lazic, Moritz Guthoff
LHCb : Federico Alessio, Gloria Corti
TOTEM : Mario Deile

Vacuum group :  Marton Ady, Roberto Kersevan

  RUN 2 Experiments background information sent to LHC,  LHC-OP-ES-0034

The LBS is closely linked to the LPC and reports as study group to the LMC   :   LMC#60, LMC#84, LMC#140

LBS mandate and organisation : see the presentation in the 1st LBS meeting in March 2009.


Subpages for some of the main activities :

For background simulations performed in Run 3 see :
       Dedicated page on Simulations of machine-induced backgrounds
       Default EOS space for simulation results for RUN3 and later /eos/project-l/lhc-mib/public

For background simulations performed in Run 2 and earlier, see:
         the LHC background simulation page
         FLUKA simulations of BBGEN: machine-induced background for HL-LHC

For luminosity optimization and calibration scans
     see the LumiScan page for short general information
     and  lpc/lumicalib.htm for details on the scans performed in the LHC
Page on LHC performance and Statistics
Collection of links related to LHC experimental conditions.
LHC Workshop on Experimental Conditions and Beam Induced Detector Backgrounds, 3 - 4 Apr 2008, workshop page and proceedings CERN-2009-003

LHC Lumi Days, 13 - 14 January 2011, workshop page

LHC Lumi Days, 29 Feb - 1 Mar 2012, workshop page

HL-LHC WP8 1st workshop, 30 Nov. 2012, workshop page with link to executive minutes

ECFA High Luminosity LHC Experiments Workshop, Oct. 2013, workshop page

EIC14 workshop 17-24 March 2014, full agenda with talks,  with talk on  Experience with Machine-Induced Backgrounds at LHC

ECFA High Luminosity LHC Experiments Workshop, Oct. 2014, workshop page



Layout information :

Vacuum Layout     http://layout.web.cern.ch/layout/  under the multiple choice “Reports” select “LHC Vacuum Layout “, make your region choice and click on “Generate”. It takes some time to display the layout. There you can find the description of each component and its position respect to the IP.

Machine Installation Plan, the link is  here,  go to “Plans Installation machine” and you can select the sector you need. There all plans are listed (you can open them with the HPGLview)


HL-LHC :   it is essential to keep low or at least well tolerable backgrounds in spite of smaller bean-pipes, higher intensities, full beam energy and increased luminosities.
The LBS is integrated in the HL-LHC studies and in particular in WP8  on the Collider-Experiment Interface in collaboration with other working groups, the  LEB, LTEX and ColUSM.