Comprehensive publication / reference for Glauber/LHC

http://inspirehep.net/record/1631672

Parameters for pPb Run 2012 (Not Yet Finalized?)

(Via Email on 7-June-2012 from David d'Enterria : dde@cernNOSPAMPLEASE.ch )

For sqrt(s)=5 TeV, sigma_NN = 70 (+/- 4) mb (*). Running the PHENIX Glauber MC with this sigma_NN, I
get the Ncoll,Npart values quoted here:

http://dde.web.cern.ch/dde/glauber_lhc.htm

(*) this value I get from the COMPETE fit of all PDG data up to Tevatron which is consistent with
TOTEM measurements of sigma_tot,inel at 7 TeV

cheers,

david

Parameters decided on 10 November 2011 for pPb (was not run in 2011)

(Via Email from David d'Enterria : dde@cernNOSPAMPLEASE.ch )

From my world-data COMPETE-based fits (consistent with the measured
7-TeV data):

<I> sigma_tot = 90.8 mb +/- 11 at sqrt(s) = 4400 GeV
<I> sigma_inel = 68.6 +/- 5.5 mb at sqrt(s) = 4400 GeV
<I> sigma_el = 22.1 +/- 2.0 mb at sqrt(s) = 4400 GeV
<I> sigma_diff = 21.9 mb +/- 1.1 at sqrt(s) = 4400 GeV

cheers,

david

Parameters decided on 04 November 2010 for PbPb Run

Parameters for N+N interaction

• Sigma Inelastic NN = 64 ± 5 mb from N+N cross section fits:

from * glauber_lhc_nskin_5pages.pdf: Draft paper: D. d'Enterria, K Reygers, paper draft to be submitted

Parameters for Glauber MC

Control plots:

Plot/mean/rms of Npart & Ncoll in 5% most central bin in Npart variable.

• Alice

• Atlas

• CMS

References

• H. De Vries, C. W. De Jager and C. De Vries, Nuclear charge-density-distribution parameters from elastic electron scattering; Atomic Data and Nuclear Tables, Volume 36, Issue 3, May 1987, Pp 495-536

• D. d'Enterria, K Reygers, to be submitted