1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

How to calculate delivered luminosity?

  1. Oct 18, 2015 #1
    I found CMS total delivered luminosity from Cern Statistics web site (22.98 inverse fb). But i want to calculate myself and using values from website's supertable page. (https://acc-stats.web.cern.ch/acc-stats/#lhc/overview-panel)
    But my result is 8.16E+42
    Where is my mistake?
     
  2. jcsd
  3. Oct 18, 2015 #2

    vela

    User Avatar
    Staff Emeritus
    Science Advisor
    Homework Helper
    Education Advisor

    On the third line of your calculations, the second plus sign should have been a minus sign. I'm sure that's it even though I have no idea what your calculations were. ;)
     
  4. Oct 20, 2015 #3
    L= (n_b*f*N_1*N_2) / 4*pi*sigma_x*sigma_y*sqrt(1+(thetha*sigma_z/2*sigma_x)^2)
    n_b: number of colliding pairs for CMS on supertable (01.01.2012 - 31.12.2012)
    f: stable beam duration on supertable (01.01.2012 - 31.12.2012)

    L= (my calculation on excel) = 1,58E+42
    But i must found 23^fb-1 (01.01.2012 - 31.12.2012)

    What is reduction factors for delivered luminosity?
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: How to calculate delivered luminosity?
Loading...