Andreas Hoecker - Talks and Teaching

ANDREAS HOECKER
EP Department, CERN CH-1211, Geneva 23, Switzerland
RESEARCH PUBLICATIONS TALKS & TEACHING CV CONTACT

SELECTED PUBLIC TALKS, COLLOQUIA AND LECTURES [ ORDERED BY TOPIC ]
Particle Physics General	Precision probes of fundamental interactions at high-energy colliders Talk at SPCS 2026: 70th Anniversary of the Discovery of Parity Nonconservation and Prospects in Frontier Physics, Tsung-Dao Lee Institute (TDLI), Shanghai, June 2026	PDF PPTX
	EPS-HEP 2025 − Conference Highlights Summary talk, EPS-HEP 2025, Marseille, France, July 2025	PDF PPTX
	Particle physics at the high-energy frontier Colloquium, USTC, Hefei, China, May 2024	PDF PPTX
	Particle physics at the high-energy frontier Talk at QUPosium 2022, Tsukuba, Japan, Dec 2022	PDF PPTX
	Smashing discoveries − Particle physics at accelerators From Particles to the Universe symposium to celebrate the 50th anniversary of IN2P3, Paris, Dec 2021	PDF PPTX
	LHCP 2020 Experimental Highlights Summary talk, LHCP 2020, Online conference, May 2020.	PDF PPTX
	Experimental Conference Summary Moriond Electroweak and Unified Theories, La Thuile, Italy, March 2016.	PDF PPTX
	The Higgs boson and beyond Talk at SLAC's 50's Anniversary Symposium, SLAC, USA, Aug 24, 2012.	PDF PPTX
	Charged Lepton Flavour Physics Talk at Lepton-Photon Symposium, Mumbai, India, Aug 2011; Seminar at LAPP-Annecy, France, Oct 2011.	PDF PPTX PPT PDF PPTX
	Les courants neutres aujourd'hui et demain: tests du Modèle Standard avec le boson Z Colloque organisé à l'occasion du Prix EPS 2009 attribué à la Collaboration Gargamelle, LAL-Orsay, France, Dec 2009.	PPTX (slides partly in French)
	En attendant la nouvelle physique ... Congrès de la SFP, Ecole polytechnique, Palaiseau, France, Jul 2009.	PDF PPT
	The Challenges of Flavour Physics Open Symposium of the CERN Council Strategy Group, LAL-Orsay, France, Jan 2006.	PPT
	Violation de CP et saveurs lourdes : perspectives expérimentales Journées de prospectives, La Colle sur Loup, France, Oct 2004.	PDF

Public Talks / Lectures	What is CERN doing under Switzerland? − A brief journey to the frontiers of physics and technology Public talk at European Congress of Radiology, Vienna, Austria, March 2026	PDF PPTX
	Physics and Perspectives of the ATLAS Experiment at the LHC Lecture at CERN TE Graduate Workshop, June 2025.	PDF PPTX
	Teilchenphysik der höchsten Energien − eine Reise ins Innerste der Materie und zum Ursprung des Universums Public leecture at EPS-HEP 2023, Hamburg, Germany, August 2023	PDF PPTX
	Le prix Nobel de physique 2008 − symétries fondamentales de la physique microscopique, leur brisure spontanée et leur importance pour l'évolution de l'univers Conférence SFP at Strasbourg, France, Dec 2008 Conférence SFP at Grenoble, France, Feb 2009.	PDF-1 \| 2 \| 3 \| 4 PPT (all) (slides in French)

Future Colliders	Future Circular Collider Talk at Les Rencontres de Noirmoutier, Île de Noirmoutier, France, June 2026.	PDF PPTX
	Prospects at the LHC and beyond Lectures at 2025 European School of High-Energy Physics, Benasque, Spain, Oct 2025.	PDF-1 \| 2 PPTX-1 \| 2
	Feedback on future collider strategy Talk at Jahresversammlung der deutschen Teilchenphysiker 2019, Bad Honnef, Germany, November 2019.	PDF PPTX

ATLAS & LHC	What we still don't know about the Higgs boson: the LHC's next act Colloquium at Università degli Studi di Milano, Italy, Mar 2026.	PDF PPTX
	The ATLAS Experiment at CERN − Lessons from a Large International Research Collaboration Talk at the International Open-Source LLM Builders Summit, EPFL, Switzerland, Feb 2026.	PDF PPTX
	Large Hadron Collider − Status, Physics, Future Talk at IAS Program on Fundamental Physics 2026, HKUST Jockey Club, Institute for Advanced Study, Hong Kong, Jan 2026.	PDF PPTX
	ATLAS and the LHC Seminar for students at HKUST, Hong Kong, Jan 2026.	PDF PPTX
	Searches: experimental state of the art, new potential and capacities Talk at SEARCH 2025, CERN, October 2025.	PDF
	Physics at the high-energy frontier − Deciphering the Higgs sector Colloquium, University of Illinois Urbana-Champaign, USA, March 2025.	PDF PPTX
	Status and prospects of the LHC Talk at the 6th international KMI symposium, Nagoya, Japan, March 2025.	PDF PPTX
	Ian Shipsey and ATLAS − What is the nature of the vacuum? Talk at memorial day to honour Ian Shipsey's scientific legacy, Oxford, UK, March 2025.	PDF PPTX
	The origin of mass Talk at the 100 years Cesar Lattes celebration, University of São Paulo, Brazil, July 2024.	PDF PPTX
	Physics at the high-energy frontier − the Higgs sector Talk at the inauguration of the new MPI for Physics, Munich, June 2024.	PDF PPTX
	Deciphering the Higgs boson − Insights and revelations a decade after the discovery Primakoff Lecture, University of Pennsylvania, March 2024.	PDF PPTX
	The Large Hadron Collider at CERN − from the Higgs boson to the quest for new physics Seminar at University of Rabat, Morocco, January 2023 Seminar at the University of Pisa, Italy, June 2022	PDF PPTX PDF PPTX
	The Large Hadron Collider at CERN Seminars at the University of Sharjah and New York University of Abu Dhabi, United Arab Emirates, November 2021	PDF PPTX
	Summary of experimental status from the LHC Run-2 and Run-3 prospects Talk at "Pushing the Boundaries − The Standard Model and Beyond at the LHC" Workshop, Durham, UK, September 2019.	PDF PPTX
	Highlights from the ATLAS Experiment Plenary talk at EPS-HEP 2019, Ghent, Belgium, July 2019. Talk at Tenth International Conference on High Energy and Astroparticle Physics (TIC-HEAP), Constantine, Algeria, October 2019.	PDF PPTX PDF PPTX
	Physics at the LHC − Latest results from the ATLAS experiment Talk at HEP 2019, Conference on Recent Developments in High Energy Physics and Cosmology, NCSR "DEMOKRITOS", Athens, Greece, April 2019.	PDF PPTX
	Measurement of Higgs boson properties − What will the HL-LHC achieve and how does it compare with future electron−positron colliders Talks at Chicago University, Jan 2019, and CERN EP/TH Faculty meeting, CERN, Jun 2018.	PDF PPTX
	New results from the ATLAS and CMS experiments Talk at Particles, Gravitation and the Universe (PGU), Hanoi, Vietnam, December 2018.	PDF PPTX
	Daybreak at the LHC − what we learned from the 13 TeV data so far Talk at the Meeting of the Israeli Physical Society, Technion, Dec 2017.	PDF PPTX
	ATLAS status and Outlook Talk at the US LHC Users Association Meeting, Fermilab, Nov 2017.	PDF PPTX
	The H(125) at the LHC Talk at Fayet Fest, ENS, Paris, Dec 2016.	PDF PPTX
	Particle physics at the dawn of a new high energy frontier Colloquium at IFIC-Valencia, Spain, Jan 2017 Colloquium at Max-Planck Institut für Physik, München, Germany, Dec 2016.	PDF PPTX PDF PPTX
	New results from the LHC Lecture at the KIT Graduiertenkolleg, Freudenstadt, Germany, Sep 2016.	PDF-1 \| 2 \| 3 PPTX-1 \| 2 \| 3
	LHC Physics Lecture at the PRISMA summer school on symmetries, fundamental interactions and cosmology 2016, Abtei Frauenwörth, Germany, Sep 2016.	PDF-1 \| 2 PPTX-1 \| 2
	Particle Physics at the dawn of a new high-energy frontier Colloquium at Freiburg U., Germany, Jul 2016.	PDF PPTX
	The LHC Run-2 and future prospects Lectures at 2016 European School of High-Energy Physics, Skeikampen, Norway, Jun 2016.	PDF-1 \| 2
	First Results froim LHC's Run-2 Seminar at U. Pittsburgh, USA, Nov 2015.	PDF PPTX
	The LHC at the Dawn of a New High-Energy Frontier Colloquium at U. Pittsburgh, USA, Nov 2015.	PDF PPTX
	An overview of results from LHC's 13 TeV running Talk at 9th Annual Meeting of the Helmholtz Alliance "Physics at the Terascale", DESY, Germany, Nov 2015.	PDF PPTX
	First ATLAS Results from Run-2 Plenary talk at EPS-HEP 2015, Vienna, Austria, July 2015.	PDF PPTX
	The flavour of Higgs - experimental introduction Talk at the "Flavour of Higgs" workshop, Weizmann Institute, Rehovot, Israel, Jun 2014.	PDF PPTX
	Du modèle standard par le boson de Higgs vers la nouvelle physique − l'aventure du grand collisionneur LHC Talk at the French Academy of Science, Paris, Nov 2013.	PDF PPTX
	Searches for Supersymmetry at Colliders Talk at Lepton-Photon Symposium, San Francisco, USA, June 2013.	PDF
	SUSY searches at ATLAS − approaches, challenges and results Talk at Helmholtz SUSY workshop, DESY, Germany, May 2013.	PDF PPTX
	The Higgs boson and beyond − physics highlights of the LHC proton-proton programme Collquium at Regensburg U, Germany, Jan 2013.	PDF PPTX
	ATLAS status and physics highlights Talk at LHCC Open Session, CERN, Switzerland, Dec 2012.	PDF PPTX
	Triggers for SUSY at ATLAS and CMS Talk with M. Pierini (speaker) at GGI, Florence, Italy, Oct 2012.	PDF
	Highlights from the LHC Lecture at Ecole de Gif, Orsay, France, Sep 2012.	PDF PPTX
	Discovery Physics at the LHC Lecture at School of HEP, Tools and Computing, Oran, Algeria, May 2012.	PDF PPTX
	Searches for SUSY and Dark Matter at the LHC Lecture at Theoretical Physics School, Zakopane, Poland, May 2012.	PDF PPTX
	Particle Physics Entering Year Three of the Large Hadron Collider Colloquium at NBI-Copenhagen, Denmark, May 2012.	PDF PPTX
	ATLAS Status and Highlights Talk at Workshop on Searches for Supersymmetry at the LHC, LBNL-USA, Oct 2011.	PDF PPTX
	Particle Physics at Year Two of the Large Hadron Collider Colloquium at Berkeley University, Oct 2011.	PDF PPTX
	Overview on ATLAS Searches Informal talk at "Year One of the LHC" workshop, Aspen, USA, June 2011.	PDF PPTX
	Recent Results from ATLAS Searches Plenary talk at Planck 2011, Lisbon, Portugal, May/June 2011.	PDF PPTX (CDS record)
	The Higgs boson − last of the particles? Seminar and colloquium given at SLAC and Stanford U.	PDF PPTX (SLAC) PDF PPTX (Stanford)
	LHC Proton−Proton Collision Physics Lecture at the CHIPP PhD Winter School 2011, Leukerbad, Switzerland, Jan 2011.	PDF PPT
	Higgs and Electroweak Precision Physics Lecture given at Cargèse 2010: Physics at TeV Colliders − From Tevatron to LHC, Cargèse, Corsica, July 2010.	PDF-1 \| 2 \| 3 PPTX-1 \| 2 \| 3
	ATLAS − Beams and first collisions Talk at the LHC week-1 meeting, CERN, Switzerland, Nov 2009.	PDF PPT
	Trigger and Data Analysis Lecture at 4th joint CERN-Fermilab Hadron Collider Physics Summer School, CERN, Switzerland, June 2009.	PDF-1 \| 2 PPT-1 \| 2
	ATLAS and CMS Commissioning and Early Physics Lecture at 5th Latin American School of High-Energy Physics, Recinto Quirama, Antioquia, Colombia, Mar 2009.	PPT
	ATLAS und der Large Hadron Collider − Beginn einer neuen Ära der Teilchenphysik Colloquium at Humboldt Universität Berlin, Nov 2008.	PPT (slides in English)
	Correlating ATLAS Beam Events with LHC Logging Data Talk given at several ATLAS meetings, Oct 2008.	PDF PPT
	ATLAS Status and Performance ATLAS-Germany meeting, Munich, Sep 2008.	Slides
	The Large Hadron Collider − High-pT Physics and Detectors Lecture at Escuela Avanzada de Verano, Mexico City, Mexico, July 2008.	PDF PPT
	ATLAS and the Large Hadron Collider − The New High-Energy Frontier Colloquium at Regensburg University, Germany, June 2008.	PDF PPT
	How an LHC experiment works Seminar at CERN Theory Department, CERN, Dec 2007.	PDF PPT
	Discovery physics at the LHC Lecture at XI Mexican Workshop on Particles and Fields 2007, Tuxtla-Gutiérrez, Mexico, Nov 2007.	PDF PPT
	Discovery Physics at the LHC and Concepts for Baryogenisis Lecture at the 5th Particle Physics Workshop, National Centre for Physics, Quaid-i-Azam University Campus, Islamabad, Pakistan, Nov 2006.	PDF-1 \| 2 \| 3 PPT-1 \| 2 \| 3

Electroweak fit	The electroweak fit of the Standard Model after the discovery of an SM-like scalar boson Talk given at "Facing the Scalar Sector" workshop, Solvay Institutes, Brusseles, Belgium, May 2013.	PDF PPTX
	Constraints from Electroweak Precision Data − the LEP & SLC Legacy Talk given at Challenges for Precision Physics at the LHC, LPNHE, Paris, France, Dec 2010.	PDF PPTX
	Electroweak Constraints on Higgs Boson Talk given at Higgs Hunting Workshop 2010, Orsay, France, July 2010.	PDF PPTX
	The Global Electroweak Fit (and Beyond) with Gfitter Review talk at EPS-HEP 2009, Krakow, Poland, July 2009.	PDF PPT
	Gfitter − Revisiting the Global Electroweak Fit of the Standard Model and Beyond CERN Physics Group (non-public event), Switzerland, Dec 2008.	PDF PPT

TMVA Project	Lecture on multivariate analysis techniques Workshop on Advanced Methods in Statistical Data Analysis, Karlsruhe, Germany, Oct 2009.	Slides
	Multivariate Classification with TMVA and outlook to TMVA 4 Seminar at Edinburgh U., UK, Dec 2008.	PDF PPT
	Multivariate Data Analysis with TMVA School of Statistics, SOS 2008, Strasbourg, France, Jul 2008.	PPT
	The Toolkit for Multivariate Data Analysis Miniworkshop on Statistical Tools, DESY, Germany, Jun, 2008.	PDF PPT
	Machine Learning Techniques for HEP Data Analysis ATLAS Top Physics Workshpp, LPC-Grenoble, France, Oct 2007.	PDF PPT
	Multivariate Data Analysis with TMVA Seminar at LPNHE-Paris and LAL-Orsay, France, June 2007.	PDF PPT
	HEP Data Mining with TMVA Seminar at U. of Freiburg and IFJ-Krakow, Poland, Feb and May 2007.	PDF PPT

Flavour Physics & CP Violation	CP Violation Lecture at XI Mexican Workshop on Particles and Fields 2007, Tuxtla-Gutiérrez, Mexico, Nov 2007.	PDF PPT
	Flavour Physics and CP Violation − Present and Future Challenges Colloquium at Weizmann Institute of Science, Rehovot Israel, May 2006	PPT
	Beauty Physics and CP violation Lecture at Helmholz School on Heavy Quark Physics, Dubna, June 2005.	PDF-1 \| 2 \| 3
	B Physics, CP Violation and the CKM Fit Colloquium at Fermilab, May 2005.	PDF Video
	Physics of the B-meson and the quest for CP violation Lecture at Dortmund-Bochum School for Flavour Physics, Bochum U., Oct 2003.	PPT-1 \| 2 \| 3
	Is it beauty or bottom ? − Die neue Ära experimenteller B Physik Talk at 68. Früjahrstagung der Deutschen Physikalischen Gesellschaft, Leipzig, Mar 2002.	PPT

CERN Summer Student Lectures 2005−2007	The Violation of Symmetry between Matter and Antimatter Introductory lecture, CERN, Switzerland, Aug 2008	Slides/Video 1 \| 2 \| 3 \| 4
	CP Violation and the Genesis of a Matter World Introductory lecture, CERN, Switzerland, Aug 2005−2007	Slides/Video

CKMfitter Project	CP Violation and the CKM Fit − Assessing the Impact of the Asymmetric B Factories Experimental Seminar, SLAC, USA, May 2005.	PDF PPT
	CKM Quark-Flavour Mixing: Implications of the Most Recent Results on CP Violation and Rare Decay Searches in the B and K Meson Systems Introductory talk at Flavor Physics & CP Violation (FPCP), Philadelphia, Pennsylvania, USA, May 2002.	PDF PPT
	B Physics and CP Violation: Recent CP-Violation Results from the B Factories and their Implications on the CKM Paradigm Seminar at Mainz U., Germany, Nov 2002.	PPT
	Similar seminars given at: TH Aachen, Germany (Nov 2001), BNL, USA (Feb 2002), KEK, Japan (June 2002), DESY-Zeuthen, Germany (Oct 2002), MPI-Munich, Germany (Oct 2002), DESY-Hamburg (Nov 2002).
	Status of the CKM Paradigm Talk at WIN 2002 Workshop (presented by J. Stark), Christchurch, New Zealand, Jan 2002	PPT

Statistics	Introduction to probability and statistics CERN Summer Student lectures, CERN, July 2016, 2017, 2018.	PDF-1 \| 2 \| 3 \| 4
	Easy Limit Statistics CAT Physics meeting, CERN, March 2011.	PDF PPTX
	Blind Analysis ATLAS Workshop on Statistical Methods, Jan 2007.	PDF PPT
	Unfolding with SVD Talk given by V. Kartvelishvili at Phystat 2011, CERN, Jan 2011.	PDF

BABAR Collaboration	α, β, γ from Charmless B decays Summary of WG-4 contributions to San Diego CKM Workshop, BABAR plenary meeting, Apr 2005	PDF
	The Measurement of sin2β in Loop-Dominated B Decays Talk at SLAC/INT Workshop, Seattle, USA, May 2005.	PDF PPT
	The Angle α at the B Factories Talk at Joint Meeting LHCb/Theory, CERN, Switzerland, Mar 2005.	PDF
	Mid-Term at the B Factories: the New Picture of CP Violation Seminar at EPF-Lausanne, Switzerland, Feb 2005.	PPT
	Similar seminars given at: Forschungszentrum Juelich, Germany (Nov 2004), LAL-Orsay, France (Nov 2004), Collège de France, Paris, France (Nov 2004).
	The Measurement of sin2β in Loop-Dominated B Decays with BABAR Talk at 32nd International Conference on High Energy Physics (ICHEP 2004), Beijing, China, Aug 16−22, 2004.	PPT
	Experimental Status of B→quasi-2-Body and B→3-body Decays − Present and Future Talk at BABAR CKM Workshop, SLAC, USA, Oct 2003.	PDF
	Hadronic B decays to charmless final states and to J/ψ K* Talk at BCP4 Conference, Ise-Shima, Japan,	PDF-1 \| 2
	The DIRC Particle Identification System for BABAR Talk at 6th International Conference on Physics in Hadron Machines (BEAUTY 99), Bled, Slovenia, Jun 21-25 1999.	PPT
	DIRC Particle Identification Seminar at LAL-Orsay, France, Mar 2000.

Muon g−2 and α-QED(MZ)	Ultimate precision Standard Model tests: the muon magnetic anomaly − taming its hadronic contributions Seminars at ICTP-Trieste, Italy and Geneva, Switzerland, May 2021.	PDF PPTX
	Hadronic vacuum polarisation contributions to the muon g−2 and to α(mZ) Talk at Ultimate Precision at Hadron Colliders Workshop, Paris-Saclay, France, Nov 2019.	PDF PPTX
	Ultimate precision Standard Model tests: the muon magnetic anomaly Seminar at DESY, Hamburg, Germany, Feb 2017.	PDF PPTX
	The Muon g−2 and its Hadronic Contribution, and also that of α(mZ) − Introduction Talk at Tau 2010 Workshop, Manchester, UK, Sep 2010.	PDF PPTX
	The Muon g−2 and its Hadronic Contribution, and also that of α(mZ) − New Evaluation and Concluding Remarks Talk at Tau 2010 Workshop, Manchester, UK, Sep 2010.	PDF PPTX
	The Muon g−2 Challenge Colloquium at PSI-Villigen, Switzerland, May 2007.	PPT
	Evaluation of the Hadronic Vacuum Polarisation Contribution to (g−2)μ Talk at Workshop on Flavour in the Era of the LHC, CERN, Switzerland, Oct 2006.	PDF PPT
	Precision Probes of New Physics: the Muon g−2 Challenge Colloquium at MIT-Cambridge, USA, Dec 1, 2005.	PPT
	Precision Probes of New Physics: the Anomalous Magnetic Moment of the Muon Seminar at SLAC, USA, Dec 6, 2005.	PDF
	Similar seminars given at: LAPP-Annecy, France (Jan 2006), Weizmann Institute of Science, Israel (May 2006).
	(g−2)μ Review talk at GDR-SUSY, LPSC-Grenoble, France, Apr 6−8, 2005.	PPT
	The Hadronic Contribution to (g−2)μ Seminar at LPC-Clermont-Ferrand, France, Jan 2005.	PDF
	Similar seminar given at: Bonn University, Germany (Nov 23, 2004), MPI-Munich, Germany (Mar 2005).
	Minireview on Vacuum Polarization Contributions to Muon g−2 Talk at 32nd International Conference on High Energy Physics (ICHEP 2004), Beijing, China, Aug 16−22, 2004	PPT
	Hadronic contribution to muon g−2 Talk at XXXVIII Rencontres de Moriond Electroweak Interactions and Unified Theories, Les Arcs, March 2003.	PDF
	Confronting Spectral Functions from Electron-Positron Annihilation and Tau Decays: Consequences for the Muon Magnetic Moment Seminar at UIUC, USA, Feb 2003	PPT
	Similar seminars given at: SLAC, USA (Sep 3, 2002), LAL-Orsay, France (Jan 2003).
	Hadronic Vacuum Polarization − Confronting Spectral Functions from Electron-Positron Annihilation and Tau Decays: Consequences for the Muon Magnetic Moment Talk at 7th Workshop on Tau Lepton Physics (TAU 2002), Santa Cruz, USA, Sep 2002.	PPT
	Hadronic Vacuum Polarization Contributions to the Anomalous Magnetic Moment of the Moment of the Muon and to the Running of the Fine Structure Constant at MZ Review talk at XXII Physics in Collision Conference, Stanford, USA, June 2002.	PDF PPT
	Hadronic Vacuum Polarization and (g−2)μ Lecture at Workshop on Electromagnetic Probes Of Fundamental Physics, Erice-Sicily, Italy, Oct 2001.	PDF
	Hadronic contribution to muon g−2 Talk at XXXVI Rencontres de Moriond Electroweak Interactions and Unified Theories, Les Arcs, March 2001.	PDF
	Evaluation of α-QED(MZ) and (g−2)μ Talk at 29nd International Conference on High Energy Physics (ICHEP 1998), Vancouver, Canada, July 23−29, 1998.	PDF
	Evaluation of α-QED(MZ) and (g−2)μ Seminar at SLAC, Stanford, USA, Sep 1998.
	Similar seminar given at: LBNL, Berkeley, USA, Sep 1998.
	Hadronic Vacuum Polarization and the Evolution of α-QED(MZ) Seminar at CERN Theory Group, CERN, Switzerland, Jan 1998.

ALEPH Collaboration, Tau Spectral Functions and QCD Phenomelology	QCD Analysis of ALEPH Spectral Functions and Precision Test of Asymptotic Freedom Talk (presented by M. Davier) at 9th International Workshop On Tau Lepton Physics (TAU 2006), Pisa, Italy, Sep 2006.	PDF PPT
	Tau Spectral Functions Lectures at LNF Spring School for Nuclear and Subnuclear Physics, Frascati, Italy, May 1998.
	Tau Spectral Functions, QCD Applications and Chiral Sum Rules Talk at 5th International Workshop on Tau Lepton Physics (TAU 98), Santander, Spain, Sep 1998.
	Tau Spectral Functions and the Measurement of αs Seminar at Karlsruhe U., Germany, May 1997.
	Vector and Axial-vector Spectral Functions and QCD Talk at 4th International Workshop on Tau Lepton Physics (TAU 96), Estes Park, Colorado, USA, Sep 1996.