Theoretical particle physics in China and France QCD, bound states, and the physics beyond the SM Michael Klasen LPSC Grenoble January 15, 2008

Michael Klasen, LPSC Grenoble2 Theoretical particle physics in France Annecy (LAPP/LAPTH): ATLAS, CMS, LHC-B Heavy ions, jets, photons, SUSY (Aurenche, Belanger, Boudjema, Guillet, Mühlleitner, Pilon, Salati) Clermont-Fd. (LPC): ALICE, ATLAS, LHC-B B mesons (Morenas) Grenoble (LPSC): ALICE, ATLAS Diffraction, jets, photons, heavy quarks, SUSY, GUTs (Carbonell, MK, Kraml, Richard, Schienbein) Lyon (IPN): ALICE, CMS B mesons, little Higgs, SUSY (Deandrea) Marseille (CPPM/CPT): ATLAS, LHC-B Diffraction, B mesons (Charles, Knecht, Lellouch, Soffer) Montpellier (LPTA): - Heavy quarks, SUSY (Hugonie, Kneur, Moultaka, Narison, Renard) Nantes (SUBATECH): ALICE Heavy ions (Werner) Paris (LPNHE/LPTHE/LPTENS Jussieu/V eme ): ATLAS Diffraction, heavy quarks, SUSY (Cacciari, Dokshitzer, Fayet, Nicolescu, Salam) Paris (IPN/LAL/LLR/LPT/CPhT Orsay/Palaiseau): ALICE, ATLAS, CMS, LHC-B Heavy ions, diffraction, jets, photons, Higgs, SUSY, X-dimensions (Djouadi, Ellwanger, Fontannaz, Korchemsky, Moreau, Munier, Pire, Schiff, Wallon) Paris (DAPNIA/SPhT Saclay): ALICE, ATLAS, CMS Heavy ions, diffraction, jets, photons, X-dimensions (Gelis, Kosower, Peschanski, Savoy, Servant)

January 15, 2008Michael Klasen, LPSC Grenoble3 ESRF ILL LPSC CERN / Fréjus

January 15, 2008Michael Klasen, LPSC Grenoble4 Theoretical particle physics in France Annecy (LAPP/LAPTH): ATLAS, CMS, LHC-B Heavy ions, jets, photons, SUSY (Aurenche, Belanger, Boudjema, Guillet, Mühlleitner, Pilon, Salati) Clermont-Fd. (LPC): ALICE, ATLAS, LHC-B B mesons (Morenas) Grenoble (LPSC): ALICE, ATLAS Diffraction, jets, photons, heavy quarks, SUSY, GUTs (Carbonell, MK, Kraml, Richard, Schienbein) Lyon (IPN): ALICE, CMS B mesons, little Higgs, SUSY (Deandrea) Marseille (CPPM/CPT): ATLAS, LHC-B Diffraction, B mesons (Charles, Knecht, Lellouch, Soffer) Montpellier (LPTA): - Heavy quarks, SUSY (Hugonie, Kneur, Moultaka, Narison, Renard) Nantes (SUBATECH): ALICE Heavy ions (Werner) Paris (LPNHE/LPTHE/LPTENS Jussieu/V eme ): ATLAS Diffraction, heavy quarks, SUSY (Cacciari, Dokshitzer, Fayet, Nicolescu, Salam) Paris (IPN/LAL/LLR/LPT/CPhT Orsay/Palaiseau): ALICE, ATLAS, CMS, LHC-B Heavy ions, diffraction, jets, photons, Higgs, SUSY, X-dimensions (Djouadi, Ellwanger, Fontannaz, Korchemsky, Moreau, Munier, Pire, Schiff, Wallon) Paris (DAPNIA/SPhT Saclay): ALICE, ATLAS, CMS Heavy ions, diffraction, jets, photons, X-dimensions (Gelis, Kosower, Peschanski, Savoy, Servant)

January 15, 2008Michael Klasen, LPSC Grenoble5 Outline Exotic hadrons IHEP, ITP, Peking University LPSC Grenoble, LPTA Montpellier Higgs bosons and supersymmetry Tsinghua University LPT Orsay Precise predictions for BSM at colliders Peking University LPSC Grenoble Charm at BES-III and CKM-Fitter IHEP LAPP Annecy, CPT Marseille, LPT Orsay Top quarks and Higgs bosons Shandong University LPSC Grenoble Cosmic rays and dark matter IHEP LAPP Annecy, LPNHE Jussieu

January 15, 2008Michael Klasen, LPSC Grenoble6 Charm quarks at BES-III & CKM-Fitter (1) Experiment: BES-III Physics interests: Leptonic D (s) decays  decay 1-2 %  lattice, B-decays Semileptonic D decays  V cs, V cd, Q 2 -dependence of form factors Threshold production of D pairs  D 0 -D 0 mixing China: IHEP: H.B. Li, Z.Z. Xing France: LAPP Annecy: S. T’Jampens, C. Kaufhold CPT Marseille: J. Charles LPT Orsay: S. Descotes-Genon Chapter of BES-III physics book (04/07), visit to IHEP (11/07) Proposal for 2008: 2 visits China  France, 4 visits France  China _

January 15, 2008Michael Klasen, LPSC Grenoble7 Charm quarks at BES-III & CKM-Fitter (2) Charm 2007 Workshop: BES-III expectations:

January 15, 2008Michael Klasen, LPSC Grenoble8 Exotic hadrons (1) Theoretical aspects: Multiflavored [B c ], hidden charm [X(3872)], additional light hadrons Spectroscopy, production rates, and decay properties Constituent quark models, QCD sum rules, and effective theories Experiments: BaBar, Belle, BES-III, CLEOc, COMPASS, FAIR, J-PARC, and LHC China: IHEP: Q.Zhao, Y.Chen, Y.B.Dong, Y.Jia, P.N.Shen, J.X.Wang, B.S.Zou Peking University: S.L. Zhu, K.T. Chao, C. Liu, B.Q. Ma, H.Q. Zheng CAS: J.P. Ma (ITP), C.F. Qiao (graduate school) France: LPSC Grenoble: J.M. Richard LPTA Montpellier: S. Narison Visit by Q. Zhao to LPSC Grenoble (01/08) Proposal for 2008: 2 visits China  France, 2 visits France  China

January 15, 2008Michael Klasen, LPSC Grenoble9 Exotic hadrons (2) Pentaquark: uudds (†) Baryons: cqq (B-factories) BaBar M=2940,  ≈17 MeV Potential models: 3-body dynamics ? Baryons: ccq (Selex 3520 ?) NRQCD Diquarks (too many states) Baryons: ccc (“Ultimate goal”) Mesons: ccg-hybrids BO appr./class. const. gluons Belle X(3941) a 1 -+ candidate Mesons: Multiquarks Potential models: c,b: q: Flavour-spin: QCD sum rules: Duality of 2-point corr. fct. X(3872): 3925±127 Lattice QCD: Z.F. Liu Resonance or artefact ? Complex energy scaling

January 15, 2008Michael Klasen, LPSC Grenoble10 Top quarks & Higgs bosons (1) Experiment: ATLAS Physics interests: Top quark: Identification/reconstruction, single top production Higgs bosons: h 0  W + W -, H ± LHC computing grid China: Shandong University: Z. Ren, …, Z.T. Liang, Z.G. Si France: LPSC Grenoble: F. Malek, …, MK Proposal for 2008: 3 visits China  France 3 visits France  China

January 15, 2008Michael Klasen, LPSC Grenoble11 Top quarks & Higgs bosons (2) Production of top quarks: non-polarized, but spins correlated Tevatron (q L q R  tt) : 81% opposite spins LHC (gg  tt) : 67% identical helicities Decay (  single production): rest frame of top quark No hadronization  spin conserved Weak decay  spin transfer  Analyzing power   i = 1 (l,d) / (,u) / (b) Double-differential distribution  C = fraction of top quarks with identical spin Choice of basis: Beam axis: Simple, symmetric, frame independent Tevatron: off-diagonal,, LHC: Top helicity (or eigenvector of C) __ _

January 15, 2008Michael Klasen, LPSC Grenoble12 Higgs bosons & supersymmetry (1) Theoretical aspects: New models for EWSB, properties of Higgs/SUSY particles Production and decay of Higgs/SUSY particles at LHC/ILC Direct and indirect detection of SUSY dark matter Experiments: ATLAS, CMS, but also low-energy/astrophysics constraints China: Tsinghua University: H.J. He France: LPT Orsay: A. Djouadi Proposal for 2008: 1 or 2 visits China  France 1 or 2 visits France  China

January 15, 2008Michael Klasen, LPSC Grenoble13 Higgs bosons & supersymmetry (2) Higgs production and decay in warped extra dimensions: A. Djouadi, G. Moreau, arXiv: [hep-ph] SU(2) L x SU(2) R x U(1) with additional heavy b-quark Contributes to production and decay R =  RS /  SM 4

January 15, 2008Michael Klasen, LPSC Grenoble14 Higgs bosons & supersymmetry (3) New gauge boson production in Higgs-less models: H.J. He, Y.P. Kuang et al., arXiv: [hep-ph] De-constructed 5 th dimension with 3 sites: SU(2) 0 x SU(2) 1 x U(1) 2 Spontaneous symmetry breaking  W 1 /Z 1 bosons with M W 1 /Z 1  400 GeV Delays unitarity violation to higher scales  choose M W 1 (= 500 GeV) and f 1 /f 2 (= 1) pp  W 0 Z 0 Z 0 pp  W 0 Z 0 j j

January 15, 2008Michael Klasen, LPSC Grenoble15 Precise predictions for BSM at colliders (1) Theoretical aspects: Higgs, supersymmetry, extra neutral gauge bosons, … Perturbative QCD, resummation, Monte Carlo simulation  leptons:  NLSP, b-  unification, non-universality, FCNC Experiments: ATLAS, CMS, but also low-energy/astrophysics constraints China: Peking University: C.S. Li, S.H. Zhu, Q. Li, Y.K. Wang France: LPSC Grenoble: MK, K. Kovarik, B. Fuks, J. Debove Two-month visit of Q. Li to LPSC (march-april 2007): B. Fuks, M. Klasen, F. Ledroit, Q. Li, J. Morel Precision predictions for Z’-production at the CERN LHC: Matrix elements, parton showers, and joint resummation Submitted to Nucl. Phys. B, arXiv:0711/0749[hep-ph] ~

January 15, 2008Michael Klasen, LPSC Grenoble16 Precise predictions for BSM at colliders (2)

January 15, 2008Michael Klasen, LPSC Grenoble17 Precise predictions for BSM at colliders (3) Third generation (s)leptons particularly interesting: tan , SUSY parameters, co-annihilation, see-saw mechanism  -identification in ATLAS: [Hinchliffe, NPB PS 123 (2003) 229] [Tarrade] Requires significant q T Leptonic decays: q T + direct leptons  100  larger Hadronic decays: q T + QCD jets  10  larger Low multiplicity / inv. mass, tuned in Z-decay  -identification in CMS: [Gennai, NPB PS 123 (2003) 244] [Sirois / Qian] Dedicated calorimeter trigger Isolated tracks, matched to calorimeter jet axis Reduces QCD background by factor 1000 Proposal for 2008: Jointly supervised Ph.D. thesis (Y.K. Wang) + 1 visit each way / ATLAS TDR SUSY  QCD /

January 15, 2008Michael Klasen, LPSC Grenoble18 Precise predictions for BSM at colliders (4) SM: Only source of flavor violation is CKM matrix MSSM: Super-CKM basis  At high energy V ub =V ub … However, different RGEs for quarks and squarks At low energy, squark mass matrix non-diagonal: and similarly for M d Scaling with M SUSY : Normalization: SU(2) L gauge invariance:  LL uu’ ≈  LL dd’ ~ ~

January 15, 2008Michael Klasen, LPSC Grenoble19 Precise predictions for BSM at colliders (5) One real parameter: G. Bozzi et al., NPB 787 (2007) 1:

January 15, 2008Michael Klasen, LPSC Grenoble20 Cosmic rays & dark matter (1) Experiments: HESS, PAMELA, Tibet Array; AMS, ARGO, GLAST Theoretical aspects: Cosmic rays: Photons, neutrinos, anti-particles Dark matter signal flux: Clumps, asymmetries Background: Photons from anti-nuclei, anisotropies, transport China: IHEP: X.J. Bi, C. Fan, H.B. Hu, Q. Yuan, J. Zhang, Y. Zhang France: LAPTH Annecy: P. Salati, J. Lavalle (Torino), R. Taillet LPNHE Jussieu: D. Maurin 2 nd Sino-French workshop on the dark universe (sept. 2006): Bi, Lavalle, Maurin, Yuan, submitted to A&A, arXiv:0709/3634 Proposal for 2008: 3 visits China  France, 3 visits France  China

January 15, 2008Michael Klasen, LPSC Grenoble21 Cosmic rays & dark matter (2) SUSY-QCD corrections to DM annihilation in the Higgs funnel B. Herrmann, MK, PRD 76 (2007)  1 0  1 0  A 0  bb, dominates at large tan  Yukawa coupling: QCD loops to O(  s 3 ), top O(  s 2 ), SUSY-QCD O(  s ) Mass singularity: Resummation: m b  m b /(1+  m b ), ~~ _

January 15, 2008Michael Klasen, LPSC Grenoble22 Talks pp colliders (Tevatron, LHC): Chong-Sheng LI (Peking): Single top-quark production via SUSY FCNC couplings and model-independent FCNC couplings at hadron colliders Shou-hua ZHU (Peking): Guiding stars for physics beyond the Standard Model: Higgs boson and dark matter Qiang LI (Karlsruhe): Precision predictions for Z’-production at the LHC: QCD matrix elements, parton showers, and joint resummation e + e - colliders (BEP, ILC): Zhao-feng LIU (Paris-Sud): Moments of pion PDFs and baryon masses from twisted mass lattice QCD Qiang ZHAO (IHEP): Intermediate meson loop contributions to charmonium radiative decays