Maria Spiropulu, Aspen, Jan 21 2003 UHECR(nus) & blach holes: Ina Sarcevic Friday afternoon String Phenomenology: Mirjam Cvetic Friday morning Maria Spiropulu, Aspen, Jan 21 2003

Maria Spiropulu, Aspen, Jan 21 2003 Enrico Fermi Institute Aspen Winter 2003 Conference on Particle Physics: At the Frontiers Jan 19-25 2003 BLACK HOLES & GRAVITONS AT HECs Maria Spiropulu, Aspen, Jan 21 2003 Maria Spiropulu Enrico Fermi Institute UofC

Maria Spiropulu, Aspen, Jan 21 2003 What ? A singular classical object (black hole) A massles spin 2 particle whose long-wavelength interactions are described by general relativity (graviton) produced in high energy collisions!! Maria Spiropulu, Aspen, Jan 21 2003

It is a matter of scale and geometry From contact interaction to a gauge boson: the GFE2 behavior was tamed at short length scales From gauge theory to string theory the GNE2 behavior seems to be tamed at even shorter length scales With this comes a change in how we perceive spacetime geometry and dynamics: eg. Extra dimenisons The Standared Model, Supersymmetry and the Kaluza-Klein theory under one umbrella Maria Spiropulu, Aspen, Jan 21 2003

Models of extra dimensions Fat branes, skiny branes, solid branes, soft branes, no branes, quivering branes, positive branes, negative branes, curved bulk, flat bulk, supersymmetric bulk, gravity in the bulk, gauge fields in the bulk, no gauge fields in the bulk, fermions in the bulk, no fermions in the bulk, right handed neutrinos in the bulk, &tc Large compact extra dimensions (ADD type) Warped extra dimensions (RS type) inverse TeV extra dimensions (Ignatios type) (most) all hybrids and combinations of above Maria Spiropulu, Aspen, Jan 21 2003

Maria Spiropulu, Aspen, Jan 21 2003 As JoAnne taught me EWKB hierarchy problem SUSY Breaking flavor Breaking neutrino masses proton decay suppression Grand Unification the cosmological constant ... Maria Spiropulu, Aspen, Jan 21 2003 Only high Tc superconductivity you cannot solve with extra dimensions everything else YES

Going down, a step at a time MPlanck, Mstring, MGUT, M*, MD ,M?, MEWK Bring down the Planck to the GUT to the TeV scale in string theory with extra dimensions, the 5th slightly bigger, and then even bigger and then more of them huge (eg Kaluza-Klein, Witten-Horava, Lykken, ADD, RS) Maria Spiropulu, Aspen, Jan 21 2003

Maria Spiropulu, Aspen, Jan 21 2003 Black Holes Initial current work by Banks+Fisckler(hep-th/9906038), Dimopoulos+Landsberg(hep-th/0106295), Giddings+Thomas(hep-ph/0106219) Rizzo(hep-ph/0201228),Chang (hep-ph/0205033) goes back to early work by D’Eath and Payne [mosre recent Eardley+Giddings gr-qc/0201034, Yoshino+Nambu gr-qc/0209003] Maria Spiropulu, Aspen, Jan 21 2003

Black Hole, mass, radius, entropy A gravitational potential well whose gravitational potential energy is greater than the energy required to get out of the well = Black Hole GNMBH (RS)-1 = 1  GNMBH= RS the radius of a black hole  mass of the black hole Entropy SBH~black hole area~RS2~MBH2 Maria Spiropulu, Aspen, Jan 21 2003

High Energy vs High Entropy At higher and higher energies the production of a class of objects with higher and higher entropy will suppress the production of everything else… or, iow above the energy scale where BH can be produced, ONLY BH will be produced what is that energy scale? Is it possible that LHC turns on and we can only do diffraction particle physics and the rest is all black holes? And stringy stuff? Maria Spiropulu, Aspen, Jan 21 2003

Maria Spiropulu, Aspen, Jan 21 2003 String State Entropy The mass of an Nth mode string state is M2string= N MS2 and the associated string state entropy Sstring=Mstring/MS Sstring~Mstring, SBH~M2BH scales: Planck, String, Effective Planck ? MBHmin > MS, M* SBH Sstring S ? Maria Spiropulu, Aspen, Jan 21 2003 energy

Maria Spiropulu, Aspen, Jan 21 2003 BH domination Conservatively BH production should dominate for MBH~(5-10)M* cross section: sij BH = F(s) pR2S F(s)<1 (not all energy gets trapped, geometrical considerations for spherical formation etc) arguments for suppression(Voloshin et al) but overall domination(Rizzo, D’Eath and Payne etc)  Maria Spiropulu, Aspen, Jan 21 2003

Maria Spiropulu, Aspen, Jan 21 2003 BH Production Total cross section for BH formation eg. for n=2…7 by proton proton scattering at LHC (14 TeV). Assume M*=1 TeV and threshold for Black Hole formation at MBH,min= 3 M*=3 TeV Maria Spiropulu, Aspen, Jan 21 2003 Cavaglia et all/hep-ph/0210296

With or Without suppressions Rizzo hep-ph/0201228 with Voloshin damping factor without Maria Spiropulu, Aspen, Jan 21 2003 M*=3 TeV # extra dimensions 2,3,4,5,6

Maria Spiropulu, Aspen, Jan 21 2003 BH decay Hawking radiation with 1/T=dS/dE~MBH~RS Decay like a point source into brane modes and bulk modes. Gravity couples democratically so expect final state with GaugeBoson:Quark:Leptons= 29:72:18 (although recent work by Tao Han et al points to modification depending on the brane configuration) High Multiplicity stuff with a lot of jets until the BH shrinks and stringy modes show up Maria Spiropulu, Aspen, Jan 21 2003

LHC maybe a Black Hole factory Dimopoulos & Landsberg Maria Spiropulu, Aspen, Jan 21 2003 # of BH @LHC in e or g decay channels as a function of BH mass Shadow=2…7 extra dimensions, -- total SM bgr, … Z(ee)+X {even Higgs and SUSY discovery in the BH decays, the dimensionality of space &tc…]

Oven Fresh (the gangs of arizona) Mocioiu,Nara,Sarcevic hep-ph/0301073 Maria Spiropulu, Aspen, Jan 21 2003

(brief) Model Description & Parameters RS-type curvature of AdS5, k extent of 5th dimension, R ADD-type # of extra dimensions, d effective Planck scale, MD d d Lp MPl (8p)-½ e-kRp d AdS5 Maria Spiropulu, Aspen, Jan 21 2003 pR

(brief) Model Description & Parameters ADD mn= (n2/R2)½ n=(n1,n2,…nd) evenly spaced KK states set MD=1 TeV  d =1 R 1011 m d =2 R~0.4 mm 1/R~5 10-4 eV d =4 R~10-5 mm 1/R~20 keV d =6 R~30 fm 1/R~7 MeV RS mn=kxnLp(8p) ½(MPl)-1 xn denotes the roots of the first-order Bessel function not evenly spaced KK states set Lp=1 TeV  kR ~ 11-12 m1~TeV order Maria Spiropulu, Aspen, Jan 21 2003

Maria Spiropulu, Aspen, Jan 21 2003 Carlos,Marcela,Martin

Maria Spiropulu, Aspen, Jan 21 2003 Collider Signatures KK-Graviton Emission., KK-Graviton Exchange, KK-Graviton Resonant Production, KK-Boson Resonant production Monojets+Missing Energy, Dijets+Missing Energy, Monophotons+Missing Energy, Diphotons+Missing Energy, Dijets, Dileptons, Dileptons+missing energy, Diphotons, Dibosons Results/Studies LEP, TeVI, TeVII, LHC, NLC/TESLA Maria Spiropulu, Aspen, Jan 21 2003

Lord of the Rings The Two Towers Maria Spiropulu, Aspen, Jan 21 2003 Run 152507 event 1222318 Dijet Mass = 1364 GeV (corr) cos q* = 0.30 z vertex = -25 cm J2 ET = 633 GeV (corr) 546 GeV (raw) J2 h = -0.30 (detector) = -0.19 (correct z) J1 ET = 666 GeV (corr) 583 GeV (raw) J1 h = 0.31 (detector) = 0.43 (correct z) Maria Spiropulu, Aspen, Jan 21 2003 Corrected ET and mass are preliminary (thanks to Rob Harris)

Maria Spiropulu, Aspen, Jan 21 2003 Eg. Graviton Emission Maria Spiropulu, Aspen, Jan 21 2003

Maria Spiropulu, Aspen, Jan 21 2003 Signal topology Maria Spiropulu, Aspen, Jan 21 2003

Maria Spiropulu, Aspen, Jan 21 2003 Signal topology Maria Spiropulu, Aspen, Jan 21 2003

two events are real CDF data and one is graviton simulation; which is which?

Maria Spiropulu, Aspen, Jan 21 2003 Analyze This (That) Maria Spiropulu, Aspen, Jan 21 2003

Maria Spiropulu, Aspen, Jan 21 2003 Physics Backgrounds Z  nn + jets W  tn + jets W  en + jets QCD Dibosons tt, single top STRATEGY: Normalize wherever possible using data normalize using Zee data normalize using Zee data, SM W/Z ratio and universality normalize using dijet data normalize using theory cross section Maria Spiropulu, Aspen, Jan 21 2003

Zee: standard(izable) candle Maria Spiropulu, Aspen, Jan 21 2003

Maria Spiropulu, Aspen, Jan 21 2003 Zee standard shapes Maria Spiropulu, Aspen, Jan 21 2003

Maria Spiropulu, Aspen, Jan 21 2003 Wen standard shapes Maria Spiropulu, Aspen, Jan 21 2003

Maria Spiropulu, Aspen, Jan 21 2003 QCD Select low MET clean dijets in data Normalize Herwig 2 to 2 selected dijets with data Multiple checks that normalization holds at high MET Maria Spiropulu, Aspen, Jan 21 2003

optimize for graviton signal Keep 1 or 2 jet events ET1>80, if 2nd ET(2)>30 GeV Indirect lepton removal no isolated stiff tracks jet electomagnetic fraction< 0.9 minimum angular separation between MET vector and jet >0.3 to reduce residual QCD MET>80 GeV Maria Spiropulu, Aspen, Jan 21 2003

Summary of Backgrounds Uncertainties are stat. plus syst. QCD ~14% uncertainty due to jet resolution 4% uncertainty from the luminosity Maria Spiropulu, Aspen, Jan 21 2003

data selection & graviton acceptance Maria Spiropulu, Aspen, Jan 21 2003

Maria Spiropulu, Aspen, Jan 21 2003 DATA vs PREDICTIONS Maria Spiropulu, Aspen, Jan 21 2003

Maria Spiropulu, Aspen, Jan 21 2003 DATA vs PREDICTIONS Maria Spiropulu, Aspen, Jan 21 2003

Maria Spiropulu, Aspen, Jan 21 2003 Signal Expectations Maria Spiropulu, Aspen, Jan 21 2003

Maria Spiropulu, Aspen, Jan 21 2003 Systematics Maria Spiropulu, Aspen, Jan 21 2003

Maria Spiropulu, Aspen, Jan 21 2003 The limit Maria Spiropulu, Aspen, Jan 21 2003

Maria Spiropulu, Aspen, Jan 21 2003

Maria Spiropulu, Aspen, Jan 21 2003 Limits Maria Spiropulu, Aspen, Jan 21 2003

Maria Spiropulu, Aspen, Jan 21 2003 Monojet + missing energy: LHC reach Ian Hinchliffe Maria Spiropulu, Aspen, Jan 21 2003

Future G Emission sensitivity estimates Maria Spiropulu, Aspen, Jan 21 2003

Future G exchange Reach 500 100 Maria Spiropulu, Aspen, Jan 21 2003

Maria Spiropulu, Aspen, Jan 21 2003 RS Gravitons 1500 GeV KK graviton/ its tower of states at the LHC e+e-m+m- 500 2 100 Maria Spiropulu, Aspen, Jan 21 2003 500 GeV KK graviton/ its tower of states at a lepton collider Davoudiasl,Hewett,Rizzo

Maria Spiropulu, Aspen, Jan 21 2003 RS Gravitons Maria Spiropulu, Aspen, Jan 21 2003

Maria Spiropulu, Aspen, Jan 21 2003 m1 From the Tevatron Red=Drell-Yan Blue=Dijets Solid RUNI Dashed RUNII 2fb-1 Dotted RUNII 30fb-1 Maria Spiropulu, Aspen, Jan 21 2003 Davoudiasl,Hewett,Rizzo

Maria Spiropulu, Aspen, Jan 21 2003

A spin 2 graviton: Can we tell? Maria Spiropulu, Aspen, Jan 21 2003

Angular distributions in graviton production & decay (ATLAS) Allanach et al. ATLAS hep-ph/0211205 Angular distributions in graviton production & decay (ATLAS) a gg  G  ff b qq  G  ff c gg  G  gg, gg a qq  G  gg, gg d gg  G  WW, ZZ e qq  G  WW, ZZ f gg  G  HH g qq  G  HH Maria Spiropulu, Aspen, Jan 21 2003

Maria Spiropulu, Aspen, Jan 21 2003 G WW ln+jets Maria Spiropulu, Aspen, Jan 21 2003

Maria Spiropulu, Aspen, Jan 21 2003 Therefore... Black Holes and gravitons can and will be produced in HECs if spacetime is what we start suspecting it is A lot of serious work going on on many fronts Maria Spiropulu, Aspen, Jan 21 2003

Maria Spiropulu, Aspen, Jan 21 2003

Maria Spiropulu, Aspen, Jan 21 2003