BEGIN:VCALENDAR VERSION:2.0 PRODID:-//CERN//INDICO//EN BEGIN:VEVENT SUMMARY:CHARMONIA DECAY CONSTANTS FROM LATTICE QCD AND QCD SUM RULES DTSTART;VALUE=DATE-TIME:20140626T132000Z DTEND;VALUE=DATE-TIME:20140626T134000Z DTSTAMP;VALUE=DATE-TIME:20260920T234500Z UID:indico-contribution-51-142@cern.ch DESCRIPTION:Speakers: MELIC\, Blazenka (Rudjer Boškovic Institute\, Theor etical Physics Division P.O.Box 180\, HR-10002 Zagreb\, Croatia)\nWe compu te the decay constants of the lowest ccbar-states with quantum numbers J(P C)=0(-+) [eta_c]\, 1(--) [J/psi]\, and 1(+-) [hc] by using lattice QCD and QCD sum rules. We consider the coupling of J/psi to both the vector and t ensor currents. Lattice QCD results are obtained from the unquenched (Nf=2 ) simulations using twisted mass QCD at four lattice spacings\, allowing u s to take the continuum limit. On the QCD sum rule side we use the moment sum rules. \nThe results are then used to discuss the rate of eta_c --> ga mma gamma decay\, and to comment on the factorization in B --> X K decays\ , with X being either eta_c or J/psi.\n\nhttp://indico.fuw.edu.pl/contribu tionDisplay.py?contribId=142&sessionId=51&confId=0 LOCATION:Old Library\, University of Warsaw 107 URL:http://indico.fuw.edu.pl/contributionDisplay.py?contribId=142&sessionI d=51&confId=0 END:VEVENT BEGIN:VEVENT SUMMARY:Quantum quenches in strongly coupled systems from AdS/CFT correspo ndence DTSTART;VALUE=DATE-TIME:20140626T122000Z DTEND;VALUE=DATE-TIME:20140626T124000Z DTSTAMP;VALUE=DATE-TIME:20260920T234500Z UID:indico-contribution-51-154@cern.ch DESCRIPTION:Speakers: Prof. BUCHEL\, Alex (University of Western Ontario)\ nWe exploit gauge theory/string theory correspondence to study quantum\nqu enches in strongly coupled gauge theory plasma. Specifically\, we\nconside r the response of a thermal equilibrium state of the theory\nunder variati ons of the coupling of a relevant operator. We discuss\nthe transition fr om the 'adiabatic' regime (quenches slow on a thermal\ntime-scale) to 'abr upt' changes (quenches fast on a thermal\ntime-scale)\, and comment on the universal behaviour in latter case. We\ndiscuss evolution of the apparent and the event horizons in the dual\ngeometry\; the two-point correlation functions of operators of large\nconformal dimensions\; and the evolution of the entanglement entropy of\nthe system. We compare the thermalization process from the viewpoint\nof local (the one-point correlation functions) and these nonlocal\nprobes.\n\nhttp://indico.fuw.edu.pl/contributionDispl ay.py?contribId=154&sessionId=51&confId=0 LOCATION:Old Library\, University of Warsaw 107 URL:http://indico.fuw.edu.pl/contributionDisplay.py?contribId=154&sessionI d=51&confId=0 END:VEVENT BEGIN:VEVENT SUMMARY:Multiplicity and s Dependence of Hadron Spectra in pp Collisions a t RHIC and LHC DTSTART;VALUE=DATE-TIME:20140626T130000Z DTEND;VALUE=DATE-TIME:20140626T132000Z DTSTAMP;VALUE=DATE-TIME:20260920T234500Z UID:indico-contribution-51-132@cern.ch DESCRIPTION:Speakers: URMOSSY\, Karoly (Wigner RCP of the HAS)\nFragmentat ion functions measured in e+e- and pp collisions are well reproduced via a fragmentation model based on microcanonical statistics and superimposed E uler--Gamma-type multiplicity fluctuations [1\,2]. The power of the obtain ed analytic fragmentation function (which is a cut-power function in x) de velopes a double-logarithmic dependence on the QCD scale Q^2 [3]. Besides\ , this function also describes transverse hadron spectra measured in pp an d AA collisions at RHIC and LHC energies [4\,5]. Interestingly\, the power of the spectra of pions\, kaons and protons stemming from pp collisions e xhibits a similar double-logarithmic dependence on the collision energy sq rt{s} and on the hadron multiplicity N (measured in the |eta|\n\nhttp://in dico.fuw.edu.pl/contributionDisplay.py?contribId=132&sessionId=51&confId=0 LOCATION:Old Library\, University of Warsaw 107 URL:http://indico.fuw.edu.pl/contributionDisplay.py?contribId=132&sessionI d=51&confId=0 END:VEVENT BEGIN:VEVENT SUMMARY:Small Representation Principle DTSTART;VALUE=DATE-TIME:20140626T140000Z DTEND;VALUE=DATE-TIME:20140626T142000Z DTSTAMP;VALUE=DATE-TIME:20260920T234500Z UID:indico-contribution-51-127@cern.ch DESCRIPTION:Speakers: NIELSEN\, Holger Bech (Niels Bohr Institute)\nWe fin d that a properly defined principle of small representations \nleads to mu ch of the structure of the Standard Model. This weakly \nsuggests that the Standard Model - though possibly repeated as \nseveral sectors - is all t here is untill very high in energy. \nThen such a picture needs being supp orted by explaining away arguments \nfor why Standaard Model can not work ``all the way up'' almost to \nPlanck scale. One such argument would be to have dark matter \nWITHIN THE STANDARD MODEL in the form of perls of whit e dwarf like \nmatter encapsulated into a region with a condensate of boun d states \nof 6 top and 6 anti top quarks. One such perl may have fallen d own in Tunguska ca 100 years ago.\n\nhttp://indico.fuw.edu.pl/contribution Display.py?contribId=127&sessionId=51&confId=0 LOCATION:Old Library\, University of Warsaw 107 URL:http://indico.fuw.edu.pl/contributionDisplay.py?contribId=127&sessionI d=51&confId=0 END:VEVENT BEGIN:VEVENT SUMMARY:Naturalness and the Weak Gravity Conjecture DTSTART;VALUE=DATE-TIME:20140626T134000Z DTEND;VALUE=DATE-TIME:20140626T140000Z DTSTAMP;VALUE=DATE-TIME:20260920T234500Z UID:indico-contribution-51-173@cern.ch DESCRIPTION:Speakers: Mr. REMMEN\, Grant (California Institute of Technolo gy)\nThe weak gravity conjecture (WGC) is an ultraviolet consistency condi tion asserting that an Abelian force requires a state of charge q and mass m with q > m/mPl. We generalize the WGC to product gauge groups and study its tension with the naturalness principle for a charged scalar coupled t o gravity. Reconciling naturalness with the WGC either requires a Higgs ph ase or a low cutoff at Λ ∼ q mPl . If neither applies\, one can constru ct simple models that forbid a natural electroweak scale and whose observa tion would rule out the naturalness principle.\n\nhttp://indico.fuw.edu.pl /contributionDisplay.py?contribId=173&sessionId=51&confId=0 LOCATION:Old Library\, University of Warsaw 107 URL:http://indico.fuw.edu.pl/contributionDisplay.py?contribId=173&sessionI d=51&confId=0 END:VEVENT BEGIN:VEVENT SUMMARY:N=4 Super Yang-Mills Plasma DTSTART;VALUE=DATE-TIME:20140626T124000Z DTEND;VALUE=DATE-TIME:20140626T130000Z DTSTAMP;VALUE=DATE-TIME:20260920T234500Z UID:indico-contribution-51-233@cern.ch DESCRIPTION:Speakers: CZAJKA\, Alina (Jan Kochanowski University)\nThe N=4 super Yang-Mills plasma is studied in the regime of weak coupling. Collec tive excitations and collisional processes are discussed. Since the Keldys h-Schwinger approach is used\, the collective excitations in both equilibr ium and non-equilibrium plasma are under consideration. The dispersion equ ations of gluon\, fermion\, and scalar modes are written down and the self -energies\, which enter the equations\, are computed in the Hard Loop Appr oximation. The self-energies are discussed in the context of effective act ion which is also given. The gluon modes and fermion ones appear to be the same as those in the QCD plasma of gluons and massless quarks. The scalar modes are as of free relativistic massive particle. The binary collisiona l processes\, which occur at the lowest nontrivial order of the coupling c onstant\, are reviewed and then the transport properties of the plasma are discussed. The N=4 super Yang-Mills plasma is finally concluded to be ver y similar the QCD plasma of gluons and light quarks. The differences mostl y reflect different numbers of degrees of freedom in the two systems.\n\nh ttp://indico.fuw.edu.pl/contributionDisplay.py?contribId=233&sessionId=51& confId=0 LOCATION:Old Library\, University of Warsaw 107 URL:http://indico.fuw.edu.pl/contributionDisplay.py?contribId=233&sessionI d=51&confId=0 END:VEVENT END:VCALENDAR