Particle Physics Theory

Particle Physics Theoryin Austria

A.H. Hoang

University of Vienna

RECFA Meeting, Vienna, March 11, 2011

• Locations

• Research Groups & Numbers

• Topical Physics Research Overview

• Conclusions

Outline

Particle Physics Theory

Locations and Number of FTE’s*

* diploma students not counted

Vienna

Graz

Innsbruck

RECFA Meeting, Vienna, March 11, 2011 3

Particle Physics Theory

Locations and Number of FTE’s (status 2011)*

* all but diploma students are counted

Vienna: 68

• University of Vienna• Vienna University of Technology• Institute for High Energy Physics of the

Austrian Academy of Science (HEPHY)• Institute for Atomic and Subatomic

Physics (Atominstitut)

Graz: 26

• Karl-Franzens-Universität Graz

Innsbruck: 1

• University of Innsbruck





Vienna: 68

Particle Physics Group:

Project Leaders and Research Areas

A. Hoang (P)H. Neufeld (assP)W. Grimus (assP)H. Hüffel (assP)B. Hiesmayr (PD)A. Bartl (emer)E. Ecker (ret)

Mathematical Physics Group:+

J. Yngvason (P)H. Grosse (assP)G. Lechner (PD)H. Steinacker (PD)

+ with particle physics activities

Collider and Jet PhysicsPrecision and perturbative QCDLow energy hadron dynamics (chiral perturbation theory)SUSY phenomenology (LHC and ILC)Neutrino physicsQuantum entanglement

GravityDeformed quantum field theoryMatrix models

Faculty of Physics: 16 experimental groups (no particle physics) 3 theoretical groups

appointed 2010*

* from Max-Planck-Institute Munich





Vienna: 68



QCD at extreme condition (thermal, high pressure)String theoryGravity and black holesSupersymmetryNon-commutative field theory

Faculty of Physics: 4 institutes (1 theoretical physics) 1 group “Fundamental Interactions”

A. Rebhan (P)H. Balasin (assP)D. Grumiller (juniorP)R. Rashakov (gP)J. Knapp (assP)A. Schmitt (assP)H. Skarke (PD)

promoted 2008





Vienna: 68



SUSY phenomenology (LHC and ILC)Perturbative QCD, sum rulesRelativistic hadronic bound states

Emphasis of experimental particle physics,small theory group

H. Eberl (pStaff)W. Lucha (pStaff)





Vienna: 68

Particle Physics Group:*


Theory of nuclear reactionsHadronic bound states

1 formal institute of the VUT:Emphasis of experimental particle physicsLarger nuclear physics theory group, small particle physics theory group

M. Faber (pStaff)H. Leeb (pStaff)

RECFA Meeting, Vienna, March 11, 2011 8* with substantial nuclear physics component



Lattice QCD Non-perturbative QCDThermal QCDPerturbative QCD,Hadronic bound states

Graz: 26

• Karl-Franzens-Universität Graz

Faculty of Natural Sciences: 9 Institutes (1 Physics Institute) 1 area Theoretical Physics (cond. matter + particle)

R. Alkofer (P)C. Gattringer (P)C.B. Lang (P)W. Plessas (P)W. Scheiger (P)B.J. Schäfer (PD)

appointed 2005 *appointed 2005 +

* from University of Tübingen

+ from University of Regensburg RECFA Meeting, Vienna, March 11, 2011 9

Astro and Particle Physics Group:


Hadronic bound statesProton spin and properties

Faculty of Mathematics, Computer Science and Physics: 7 Institutes 1 Theoretical Physics Institute

S. Bass (PD)

Innsbruck: 1

• University of Innsbruck


Personnel in Numbers (FTE)

Total Non-permanent PhD

Uni Graz 26 20 16

Uni Vienna 17 13 6

Uni Vienna 12 10 5

Vienna Tech. U. 27 25 12

Atominstitut 8 6 3

HEPHY 6 4 3

Uni Innsbruck 1 1 0

97 79 45

(particle physics)

(mathematical physics)

Permanent

6

4

2

2

2

2

0

18


Personnel in Numbers (FTE)

Total Non-permanent PhD

Uni Graz 26 20 16

Uni Vienna 17 (16)2004 13 (7)2004 6 (4)2004

Uni Vienna 12 10 5

Vienna Tech. U. 27 (23)2004 25 (21)2004 12 (8)2004

Atominstitut 8 6 3

HEPHY 6 4 3

Uni Innsbruck 1 1 0

97 79 45

(particle physics)

(mathematical physics)

Permanent

6 (3)2004

4 (9)2004

2 (2)2004

2 (4)2004

2 (2)2004

2 (3)2004

0 (0)2004

18 (23)2004

• Uni Graz: substantial increase (+2 full Prof + FWF Graduate School “Hadrons in Vacuum, Nuclei and Stars” (2006))• Uni Vienna (particle): (2 full Prof + 4 ass Prof)2004 (2 full Prof + 2 Uni Assistant [6 year positions])2011 • Vienna Tech. Uni.: (2 full Prof + 2 ass Prof)2004 (1 full Prof + 1 ass Prof)2011 • Overall decline in permanent positions.• Development towards fewer professor ships and more PD-type positions.

2004 2011 2018 RECFA Meeting, Vienna, March 11, 2011 12

?

2009 CERN crisis

Research in (some) Numbers (status 2011, as of today)


Current FWF/EU funded single projects:

Current FWF/EU funded networks:

Current FWF funded graduate schools:

14

6

1

Regular International Meetings: Schladming Winter School for Theoretical Physics (Graz)

Central European Seminar (former Triangle Meeting) (Uni Vienna)

Oberwölz Workshop in Strong Interactions (Graz)

International collaborations: > O(100)

Research in (some) Numbers (status 2011, as of today)


Current FWF/EU funded single projects:

Current FWF/EU funded networks:

Current FWF funded graduate schools:

14

6

1 FWF Graduate School “Hadrons in Vacuum, Nuclei and Stars” (Graz,2006, max 12 years)

FWF Graduate School “Particles and Interactions” (Vienna,2006)[Invited to submit main application (9.3.2011)]

future

Graz (3): DFG SFB TR55 + EU FP7 +STRONGnet

VTU (2): ESF RNP + FWF I192 (Vienna-ITEP Moscow)

UV+HEPHY (1): FWF I297 (Vienna-Würzburg)

Regular International Meetings: Schladming Winter School for Theoretical Physics (Graz)

Central European Seminar (former Triangle Meeting) (Uni Vienna)

Oberwölz Workshop in Strong Interactions (Graz)

D-A-CH Cooperation (FWF+DFG+SNF): joint application at one single funding agency.

Recently: higher success rate for single project applications at the FWF.

Personal View:Development toward situation with:

• fewer permanent positions (younger Profs) • very good oportunities• more 3rd party funded positions• many 3rd party funded students• more international competition• improved outreach (FAKT)

2004 2011 2018 (Fachausschuss für Kern- und Teilchenphysik)

International collaborations: > O(100)

Research Directions in Theory


QCD: 70% of all project leaders, at all Austrian institutions

• Theory of nucleon interactions• Hadronic bound states• Lattice gauge theory• Thermal QCD (extreme conditions)• Chiral perturbation theory• Collider and Jet Physics• Structure functions• Perturbative & precision QCD• Monte-Carlo Tuning• AdS/CFT correspondence

Lattice & low-energy QCD

High-energy, perturbative QCD

QCD at finite T and pressure

Collider QCD & flavor physics

New ways to solve QCD

Effective theories for QCD

BSM physics: 20% of all project leaders, at Uni Vienna, TU Vienna

• SUSY phenomenology• Grand Unified Theories• Neutrino Physics

QFT, Gravity & String Theory: 30% of all project leaders, at Uni Vienna, TU Vienna,

• String theory, matrix models• Non-commutative QFT• Gravity & quantum gravity

Quantum Entanglement: 4% of all project leaders, at Uni Vienna

• Decoherence• Quantum erasor

Autria: Center

for QCD


Lattice Gauge Theory Prelovsek, Draper, Lang, Limmer, Liu, Mathur, Mohler 2010

Spectrum results for π-π states compatible with existence of Tetraquark states (qqqq).

attractive repulsive


Dyson Schwinger Equation Blank, Krassnigg 2010

Relation between Green functions from equation of motion.

Require approximations and interaction models for solutions.

Chiral phase transition interaction dependent.


Relativistic Quark Models (Baryons) Plessas, Melde 2010

Baryon spectrum and form factors predictable.

spectrum

Electric and magnetic form factors


Chiral Perturbation Theory

Ecker, Masjuan, Neufeld 2010

Effective theory for low energy dynamics of the lightest mesons (Goldstone bosons of chiral symmetry breaking).

Chiral extrapolation to physical meson masses for lattice results for low-energy constants.

Electromagnetic effects and Vus determination from Kl3 decays.

Cirigliano, Giannotti, Neufeld 2008


fD = (206.2 ± 7.3OPE ± 5.1syst) MeV fDs = (245.3 ± 15.7OPE ± 4.5syst) MeV

D Ds

QCD Sum Rules for D, Ds Decay Constants

Use perturbative QCD, causality and quark-hadron duality to constrain non-perturbative parameters.

Lucha etal. 2009 - 2011

Agreement with lattice and experiment for improved sum rule algorithm.


Multi-Loop CalculationsHoang, Stahlhofen 2011

O(104) Feynman diagrams for NNLL order anomalous dimension of quark production current.

Top threshold production at a future ILC.

Stabilization of NNLL prediction.


QCD Factorization in Soft-Collinear-Effective TheoryAbbate, Fickinger, Hoang, Mateu, Stewart 2011

Predictions of thrust distribution at NNNLL order.


ATLAS

Top Quark Mass ReconstructionFleming, Hoang, Mantri, Stewart 2008

SCET factorization allows for theoretical computation of invariant mass distribution accounting for non-perturbative effects. (e+e-)


Quark Gluon Plasma Rebhan, Romatschke, Strickland, Attems 2005, 2008

Proper interpretation of observed thermalization properties in relativistic heavy ion collisions need to account for non-Abelian plasma instabilities.

Effective theory for non-Abelian plasma instabilities and numerical simulations.


SUSY Phenomenology Bartl, Majoretto, Eberl etal. 2009, 2010

Impact of flavor structure of SUSY extensions of the SM on SUSY searches at the LHC.

Squark mixing effects have strong impact of observed distributions in decay chains.


Neutrino Physics Grimus, Lavoura 2009

Scales of Dirac and Majorana mass terms in Sea-Saw mechanism model-dependent.

Can be realized in multi-Higgs doublet model.

No visible effect at Hadron colliders.

Enhanced charged Higgs production in electron-electron collisions.


Black Hole Physics Grumiller, Johansson 2008

Mathematical properties of black holes relevant for many applications outside gravity due to dualities. (Mathematical equivalences to other problems).


Bertelmann, Grimus, Hiesmayr

Quantum Entanglement & Decoherence

EPR quantum entanglement basis of measurement of time-dependent CP-violation.

Possible intrinsic quantum mechanical (particle dependent) decoherence potentially measureable experimentally.

High experimental sensitivity could distinguish decoherence models.


Conclusions

• Austrian particle theory very strong in QCD.

• Weak in BSM physics (flavor+collider) and astro-particle physics.

• Very localized centers for physics.

• Very good students.

• International connections excellent.

• On the way: modern and competitive structures.

• Outreach to general public must be part of scientific life.

• Personal view: Austria/Vienna = land of short ways.

• Personal view: Opportunities to create strong and visible groups.

Thanks you.

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Particle Physics Theory