Monte Carlo Particle ID NumbersComputer Readable Files

PDA Particle Data Book Applications

Tom Trippe

PDG Collaboration Meeting

September 22, 2006

Monte Carlo Particle Numbering Scheme

Revised March 2004 by L. Garren (Fermilab), I.G. Knowles (Edinburgh U.), S. Navas (U. Granada), P. Richardson (Durham U.), T. Sjostrand (Lund U.), and T. Trippe (LBNL).

Used in several event generators, e.g. HERWIG and PYTHIA/JETSET, and in the /HEPEVT/ standard interface. The general form is a 7digit number:

± n nr nLnq1 nq2 nq3 nJ

This encodes information about the particle's spin, flavor content, and internal quantum numbers.

For example: B0 511 B+ 521

Monte Carlo Particle Numbering (cont.)

Recent author additions: Sergio Navas (U. Granada) 2004 edition on

PDG Meson Team MemberImproving coordination on meson numbering

Peter Richardson (U. Durham) 2006 edition onReplaces Ian Knowles as HERWIG representativeWorking on Particle Data for C++ version HERWIG++

32 new or changed meson codes or namesAdded R-hadrons (color singlet hadronic states)

and codes for nuclear fragments from heavy ion physics

Coordinated with STDHEP project at FNAL

Computer readable files• Table of Masses, Widths, and PDG Monte Carlo

Particle ID Numbers – updated for the 2006 Edition of RPP.

• Mass-Width Table with Expanded Content and Improved Format – Updated for 2006, done by COMPAS group

• Added quantum numbers I, G, J, P, C, quark content, and quality status.

• Included all states in the Review of Particle Physics, whether confirmed or not, with flags to indicate their status.

• Format is “comma-separated” so it can be read by C++, Fortran, and Excel or other spreadsheet or database programs.

Palm and other PDA products

• A user may create a new product from our computer related files or our new interactive database.

• If it appears useful, we put a link on our web pages.  • PDG does not assume responsibility for these

products.• If the product is not maintained well, we remove the

link.• For example there are Particle Data Book products

on a Palm PDA and a Zaurus PDA.• We also link to PDA applications in related fields, like

the Heavy Ion Fusion Calculator by T. Lauritsen.

Zaurus PDA Particle Data Book(new in 2006)

• By Yuan Chao (National Taiwan University)

• For Sharp Linux Zaurus PDA• Contains searchable tables of

particle properties• Uses the PDG’s new expanded

content mass-width computer readable table

• Downloadable files and information distributed via SourceForge: http://zpdbook.sourceforge.net/

Palm PDA Particle Data Book

• Done by Doug Lowder• Contains

– physical constants– astrophysical constants– particle properties

• Doug has responsibility for upgrading and distribution

• PDG points to his web page• Based on RPP 2000 edition• Will drop if not updated soon