m. barnett – sept. 2006 welcome. 50th anniversary of the particle data group also celebrating the...

M. Barnett – Sept. 2006

WelcomeWelcome


50th Anniversary50th Anniversaryof the Particle Data Group

Also celebrating the75th Birthday of Matts Roos

80th Birthday of Art Rosenfeld


Sheldon GlashowSheldon GlashowGeorge KalbfleischGeorge KalbfleischArt RosenfeldArt Rosenfeld


The Particle Data BookParticle Physics BookletWeb Version of RPPPocket Diary for Physicists

Review of Particle Physics - 2006 EditionReview of Particle Physics - 2006 Edition


2006 Edition of RPP

689 New papers

2633 New measurements -- with new fits• In addition to 6400 old papers with 22,000

measurements

110 Reviews• 11 new reviews

• 66 revised

Book is 1250 pagesBooklet is 320 pages (still… but at a price)


New Reviews

1. Cabibbo-Kobayashi-Maskawa quark-mixing matrix A. Ceccucci, Z. Ligeti, Y. Sakai 2. V(ud), V(us), Cabibbo Angle, and CKM Unitarity - E. Blucher, W.J. Marciano 3. Determination of V(cb) and V(ub) - R. Kowalewski, T. Mannel 4. Muon Anomalous Magnetic Moment - A. Hocker, W.J. Marciano 5. Dalitz-Plot Analysis Formalism - D. Asner 6. Polarization in B Decays - A.V. Gritsan, J.G. Smith 7. Pentaquark Update - G. Trilling 8. Extra Dimensions - G.F. Giudice, J.D. Wells 9. Introduction to the Neutrino Properties Listings - P. Vogel, A. Piepke10. Introduction to Three-Neutrino Mixing Parameters Listings 11. Particle Detectors (New sections: Photon Detectors: A. Chakraborty, T. Sumiyoshi; Micro-pattern Gas Detectors: M.T. Ronan; Resistive-plate chambers: H.R. Band, J. Zhang)


• 31,000 Booklets 31,000 Booklets (up from 29,500)(up from 29,500)

• 16,000 RPP books 16,000 RPP books (up from 14,200)(up from 14,200)

• 5-10 million hits/year on website5-10 million hits/year on website

NotesNotes

• CERN distributing as before.CERN distributing as before.

• Increased demand.Increased demand.

Products Distributed


Student and HEP Books/Booklets

(LBNL distribution)

Booklet:year total HEP[%] student[%] grad. fract.[%]2000 8,968 57 27 742002 10,083 56 33 722004 11,258 56 39 70

RPP Book:year total HEP[%] student[%] grad. fract.[%]2000 6,669 63 24 782002 8,220 61 31 762004 9,328 63 38 75


According to SLAC Library, the According to SLAC Library, the Review is the all-time top cited Review is the all-time top cited article in High Energy Physics witharticle in High Energy Physics with 25,800 citations. citations.

2nd is Weinberg’s Standard Model paper 2nd is Weinberg’s Standard Model paper with 6075with 6075


166 authors from

19 countries and 100 institutions

• PDG/Berkeley

• CERN, Japan, Meson Team, World

• Working Groups, Workshop participants, Referees, Verifiers

Who Contributes


The PDG Empire


The Berkeley GroupJuerg Beringer Physicist 0.5 FTEWeiming Yao Physicist 0.5 FTEMichael Barnett Physicist 0.5 FTEPiotr Zyla Editor/PhysicistGail Harper Admin

Retirees (0.05 to 0.2 FTE):Orin Dahl, Don Groom, Tom Trippe, Charles Wohl

Ramon Miquel resigned and is in Spain. He promises 0.3 FTE for this year only.

A search is under way for a replacement, and we would appreciate your help. The position is half PDG, half research (ATLAS, SNAP, … or maybe Theory).


PDG Workshops

Improved and expanded coverage Improved and expanded coverage throughthrough– D Meson Lepton– CKM Workshop– Neutrino Workshop– Extra Dimensions Workshop

Contributed to the content of RPP-Contributed to the content of RPP-20062006


For example:For example:

Coordination with LEP and B-factory working Coordination with LEP and B-factory working

groups on:groups on: B lifetimes, mixing, V(cb) and V(ub), etc.

PDG role in CKM WorkshopsPDG role in CKM Workshops

(CERN 2002, Durham 2003, San Diego 2005)(CERN 2002, Durham 2003, San Diego 2005)

PDG working closely with BaBar, Belle, CLEO and PDG working closely with BaBar, Belle, CLEO and

Tevatron in Tevatron in

Heavy Flavor Working Group.Heavy Flavor Working Group.

Role of Working Groups


New Papers in RPP-2006 Papers 20022002 20042004 20062006W BosonW Boson 2323 88 1414Z BosonZ Boson 2121 99 1818 LeptonLepton 1111 55 1919Neutrinos and mixingNeutrinos and mixing 2828 3030 4949Charged hvy leptonsCharged hvy leptons 11 11 00Quarks (u,d,c,s,b)Quarks (u,d,c,s,b) 1717 1919 1414Top quarkTop quark 99 33 2121b' quarkb' quark 00 11 00ee3232 77 2020K mesonsK mesons 3939 3636 4646D and DD and Dss mesons mesons 2424 2929 6060B and BB and Bss mesons mesons 9090 106106 188188SupersymmetrySupersymmetry 6060 8383 4343AxionsAxions 88 1212 1111HiggsHiggs 3030 1919 2323W‘, Z‘W‘, Z‘ 3030 9 9 1313CompositenessCompositeness 1919 77 66Extra dimensionsExtra dimensions 2525 1616 1111Other searchesOther searches 2222 88 1111Free q, monopolesFree q, monopoles 22 33 33BaryonsBaryons 6969 4848 4646c, c, cc, , bb, , upsilonupsilon 4848 3030 9090Other unstable mesonsOther unstable mesons 8989 6060 4242TOTAL 667 505 689

Measurements 20022002 2004200420062006

W Boson W Boson 54 54 1212 3939Z Boson Z Boson 7070 1919 3232 lepton lepton 42 42 1515 8282Neutrinos and mixingNeutrinos and mixing 64 64 4343

142142Charged hvy leptonsCharged hvy leptons 3 3 11 00Quarks (u,d,c,s,b)Quarks (u,d,c,s,b) 20 20 3131 2424Top quark Top quark 13 13 44 2929b' quark b' quark 0 0 11 00ee 37 37 1212 3232K mesons K mesons 57 57 8787

134134D and DD and Dss mesons mesons 98 98 123123

251251B and BB and Bss mesons mesons 344 344 466466

784784Supersymmetry Supersymmetry 160 160 157157 7373Axions Axions 18 18 1515 1313Higgs Higgs 43 43 2525 3030W‘, Z‘ 44 W‘, Z‘ 44 1313 2424Compositeness Compositeness 58 58 2121 1212Extra dimensions Extra dimensions 44 44 2828 1515Other searches 39 Other searches 39 1515 2323Free q, monopoles Free q, monopoles 5 5 33 1010Baryons Baryons 377 377 197197

206206

c, c, cc, , bb, upsilon, upsilon 107 107 9090454454

Other unstable mesonsOther unstable mesons 388 388 335335221221

TOTAL 2205 17082633


The Web allows us to see which portions ofThe Web allows us to see which portions of

RPP most interest our readers. RPP most interest our readers.

In practice, the hits on the In practice, the hits on the Data Data

ListingsListings and and

on the on the ReviewsReviews are almost exactly are almost exactly

equalequal..

Clearly people care about both.Clearly people care about both.

Listings and Reviews have equal usage


Public Access to the RPP Public Access to the RPP DatabaseDatabase

Work by the IHEP Protvino group:

Slava Lugovsky Kirill Lugovsky Vladimir Ezhela

working together with Juerg Beringer and Piotr Zyla.This is an outstanding accomplishment, providingunique, valuable, convenient access to information in our database. And it is fun to explore!


Finding the information you want is much easier:

• Enable powerful searches of RPP database

• Produce search results with Greek and math

• Link References to actual papers

Now available !


PDG Representative Board

• Michael Doser (CERN)Michael Doser (CERN)

• Simon Eidelman (Russia) Simon Eidelman (Russia)

• Ken-ichi Hikasa (Japan)Ken-ichi Hikasa (Japan)

• Klaus Mönig (Germany)Klaus Mönig (Germany)

• Weiming Yao (LBNL)Weiming Yao (LBNL)

• Michael Barnett (ex-officio)


Survey on Big Book December 2000

THE QUESTION:

Is having a copy of the full-sized book essential to

your work or study?

Yes, it is essential.

Having the full-size book is useful, but I could

live without it.

No, I do not need it.

TOTAL Responses 24502450.

1226 also provided comments


Survey on Big Book

COMMENTMany of the people who voted "useful" made comments urging continuance of the full-sized book.


Survey on Big Book


Summary of Comments Survey is Biased?

You should send it out on paper - otherwise the results will be biased toward web users. It is like doing a telephone survey to find out how many people use telephones.

Comments AGAINST producing the book I only use web version and booklet. I need only the web version. Save trees.

Comments FOR producing the book Can live without it, but… Convenience-- second monitor Poor web access Access for travel, home, etc. Browsing is superior for book Intense, focused use Time-saving Better for students

Bookmarks, notes in margin Print anyway Serendipity, random reading Archiving - cultural heritage Health Global view Readability for vision impaired Reference and authors Figures usability


NSF Reviewers

“Reviewing the proposal for the PDG is somewhat akin to reviewing motherhood. The services that have been provided by this group to the world community of high energy physicists is of inestimable value.”

“The work of the PDG is absolutely necessary for rapid progress of elementary particle physics. Without it, the field would be very fragmented and achieving consensus would be very difficult.”

“The Particle Data Books become "bibles" to researchers inparticle physics. Without this work, progress would be slower.”


Director’s Review of Physics Division

Particle Data Group and Outreach: The Physics Division’s efforts in these areas are major and are world-class.

LBNL is a leader in the QuarkNet program for high school teachers; the Contemporary Physics Education Project, which develops posters and teaching materials for high schools; the award-winning Particle Adventure website; and the new Universe Adventure website now being developed.

... the resources needed to sustain this unique and vital asset to the community must be bolstered to guarantee the continuation of this high-quality product.


Appendix (March 7, 2005)

Your recommendations and our actions

1. Quark modelThe understanding of the baryon and meson spectrum has advanced greatly in recent years by applying lattice methods to QCD. It would therefore be appropriate to present a brief introduction into this by now wide-spread theoretical method (also used in several other sections of RPP) and to summarize the main results on the hadron spectrum. Presently the material on the quark model of hadrons is covered by an experimentalist; the authorship may be complemented by lattice QCDtheorists.

-- Done



Your recommendations and our actions2. Symmetry groups

The presentation of mathematics related to symmetry groups, which play important roles in particle physics, should be modernized and expanded. In view of modern theoretical developments the following reordering and expansion suggests itself:

• Overview of important symmetry groups in particle physics: E(6), SO(10), SU(n), U(1): definitions, Dynkin diagrams, useful rules for decompositions into subgroups such as SU(5) → SU(3)xSU(2)xU(1), etc.

• Representations and multiplets: SO(10), SU(5), SU(3), SU(2); Young tableaux (Sect. 37);

• Details on SU(2) and flavor SU(3) (Sects. 35/36); details on GUT SO(10) and SU(5) (subsection should provide the mathematics complementary to the GUT review).

-- Have an author who will write it if encouraged.




3. QCD ReviewScaling violations and higher-order QCD calculations should be discussed more systematically in the subsection on the nucleon structure functions, and a more comprehensive overview of higher order results should be given on the anomalous dimensions, sum rules etc.

-- Addressed in Structure Functions section

4. LeptoquarksThe minireview on leptoquarks should be expanded by summarizing bounds on masses and couplings from low-energy analyses, particle decays etc. In addition, the main production mechanisms should briefly be listed including typical cross sections; present bounds from high energy collider experiments should be summarized. The minireview should be moved to the section "Searches".

-- Partly addressed. Did not move the section though.




5. CompositenessThe minireview on compositeness should follow the pattern of the leptoquark minireview. It should be expanded to include the main production mechanisms for excited leptons/quarks and the characteristic cross sections. Bounds on their masses and on the compositeness scales should be summarized.

-- Was overlooked.

6. Neutrinos (Listings)Any change of notation in the neutrino sector should be approached with great care, and it should not be implemented before a general consensus has been reached within the PDG and with the outside community concerned.

-- Done




7. CKM ReviewThe present authors of this review have performed competent analyses of the CKM matrix and they have presented the results in an clear way. Nevertheless, in recent years new theoretical tools, like HQET and lattice calculations of the theoretical parameters, have been developed, andwith BaBar and Belle the experimental field has advanced greatly. These new developments should be reflected in the composition of the author team. To keep the expertise of the past and to add expert knowledge of the new experimental and theoretical areas, part of the team may be substituted by an experimentalist from the BaBar or Belle collaborations and a theorist active in one of the newly developed theoretical areas.

-- New authors wrote an all new review.




7. CKM Review (continued)In our 2002 report, the presentation of additional material on CKM matrix elements in the form of small minireviews was suggested. Oral presentations during the latest PDG meeting have strengthened the case for reiterating this suggestion. Minireviews should be included on Vtd etc. and attached to the B-mixing minireview, and more attention should be paid to the prime elements Vud and Vus; the information may be presented by expanding the minireview on Baryon Decay Parameters and corresponding reviews on strange hadron decays.

-- Done



Your recommendations and our actions7. CKM Review (continued 2)

Comment on Vcb: a controversy has recently arisen about the RPP presentation of theoretical methods used in determining this CKM matrix element from experimental data. While it must be left to the experts in the field to sort out which methods are meaningful or not, the committee nevertheless wishes to comment on the issues from a general perspective. Authors of reviews and minireviews should pay balanced attention to different methods as long as no general consensus has emerged on one of the methods being incorrect or useless. Indications of how the issues can be resolved in the future, either theoretically or experimentally, are particularly helpful for RPP readers who would like to get a fair overview of the field and its prospects. Proper referencing of the original material in the literature is a necessary condition to avoid the false impression that PDG would take side in controversial areas without justification. Moreover, proper attention shouldbe paid to referee reports; they should be responded to by the authors and not be ignored.

-- Advice understood.



Your recommendations and our actions8. Cross sections

This review is in desperate need of a modern update. Formulae should cover:• e+e– annihilation:

o fermion pair productiono Z resonance productiono WW productiono Higgs-strahlung and WW fusiono SUSY Higgs productiono chargino/neutralino productiono slepton pair productiono radiative QED corrections

• two-photon processes:o Weizsäcker-Williams spectrumo fermion and scalar pair productiono single resonance formation (Higgs)

(continued next page)



Your recommendations and our actions8. Cross sections (continued)

• Tevatron and LHC:o hadron and parton cross sections in generalo parton cross-sections: 2-2 QCD processeso heavy-quark productiono vector-boson productiono Higgs production channelso SUSY Higgso Drell-Yan chargino/neutralino/slepton productiono squark-and gluino production

-- Partly done. Current author has reservations about doing more.



Your recommendations and our actions9. Heavy ions and high-temperature QCD (see also 2002 Report)

We recommend a new review article to cover the following topics:• Basic introduction to heavy-ion collisions and phenomenological dynamics• QCD phase transition: lattice results and phenomenological aspects• experimental observations• early results• RHIC results• LHC expectationsThe natural place for this article would be after the fragmentation review.

-- For 2008 review?




10. Particle detectorsIn the 2004 edition, two articles, one for inorganic scintillators and the other for electromagnetic calorimeters, were significantly updated. Two new reviews describing Cherenkov detectors were added. The committee would like to commend PDG for the achievements. Nevertheless, we would like point out that some improvements still remain to be seen:• An article on RPCs (Resistive Plate Chambers), in view of the importance of this technology for the LHC detectors should be included.-- Done• The present edition does not cover photon detection in any way and a systematic review would be in order.-- Done• The review of hadron calorimeters could profit from an update to cover recent developments.-- Will be done in 2008 edition (by Wigmans and Groom)




11. Miscellaneous proposals (see also 2002 Report)• Fragmentation: include results from lepton-hadron scattering-- Done

• GUT: include a figure showing the running of αi in SU(3)xSU(2)xU(1) for SM

and SUSY-- Done

• Quark Masses: include QCD sum rules and describe method briefly-- Done

• SUSY (theoretical part): include figures ono MSSM Higgs masses as function of MAo mSUGRA spectrum of the Snowmass Reference Point SPS.1Ao evolution of SPS.1A from low energies to unification scale MGUT

-- Was overlooked.


Collaboration Issues (to be discussed later)• Increasing size of BookletIncreasing size of Booklet

• Increasing size of Big BookIncreasing size of Big Book

• Should the Listings be dropped from the big Should the Listings be dropped from the big book (while keeping Summary Tables, Reviews book (while keeping Summary Tables, Reviews and Mini-reviews)?and Mini-reviews)?

• Possible Cosmology Data/parameters GroupPossible Cosmology Data/parameters Group

• Producing RPP for download or CD/DVDProducing RPP for download or CD/DVD

• Should there be one combined author list?Should there be one combined author list?

• More?More?

m. barnett – sept. 2006 welcome. 50th anniversary of the particle data group also celebrating the...

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