Comprehensive publication / reference for Glauber/LHC

See http://inspirehep.net/record/1631672 which includes all parameters and tables for all relevant collision systems.

xs.png values.png

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:

sigma_pp_vs_sqrts.gif

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

Parameters for Glauber MC

A   208
  Wood Saxon
R Nuclear Radius 6.62 fm
a Skin Depth 0.546 fm
d_min Inter nucleon distance 0.4 fm
w   0 (Spherical)

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
Topic attachments
I Attachment HistorySorted ascending Action Size Date Who Comment
GIFgif centrality_correlations_031110.gif r1 manage 92.0 K 2010-11-04 - 15:57 YetkinYilmaz  
GIFgif sigma_pp_ppbar_vs_sqrts.gif r1 manage 14.4 K 2010-12-10 - 15:33 DavidDEnterria  
GIFgif sigma_pp_vs_sqrts.gif r1 manage 15.9 K 2010-11-04 - 15:54 YetkinYilmaz  
PNGpng values.png r1 manage 96.8 K 2018-04-21 - 10:41 ConstantinLoizides  
PNGpng xs.png r1 manage 174.2 K 2018-04-21 - 10:41 ConstantinLoizides  
PDFpdf glauber_lhc_nskin_5pages.pdf r2 r1 manage 68.6 K 2011-01-14 - 17:31 DavidDEnterria Draft paper
Edit | Attach | Watch | Print version | History: r8 < r7 < r6 < r5 < r4 | Backlinks | Raw View | WYSIWYG | More topic actions
Topic revision: r8 - 2018-04-21 - ConstantinLoizides
 
    • Cern Search Icon Cern Search
    • TWiki Search Icon TWiki Search
    • Google Search Icon Google Search

    Main All webs login

This site is powered by the TWiki collaboration platform Powered by PerlCopyright & 2008-2021 by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
or Ideas, requests, problems regarding TWiki? use Discourse or Send feedback