High Energy Physics Seminar University of Connecticut 7 February 2005 Konstantin Goulianos The Rockefeller University QCD ASPECTS OF HADRONIC DIFFRACTION.

Slides:



Advertisements
Similar presentations
CERN March 2004HERA and the LHC: Diffractive Gap Probability K. Goulianos1 HERA and the LHC K. Goulianos, The Rockefeller University CERN March.
Advertisements

DIFFRACTION NEWS FROM CDF Konstantin Goulianos The Rockefeller University Otranto (Lecce), Italy.
Brazil 31 Mar – 2 Apr 2004 Diffraction: from HERA & Tevatron to LHC K. Goulianos1 Diffraction: from HERA & Tevatron to LHC K. Goulianos, The Rockefeller.
K. Goulianos The Rockefeller University EDS May 2005 Chateau de Blois, France Twenty Years of Diffraction at the Tevatron
Diffractive x-sections and event final states at the LHC Konstantin Goulianos The Rockefeller University / Diffraction Day.
K. Goulianos The Rockefeller University Diffractive and Total Cross Tevatron and LHC HCP 2006 Duke University, NC, USA, May 2006  CDF.
Diffraction, saturation, and pp cross-sections at the LHC and beyond Konstantin Goulianos The Rockefeller University
Diffraction, saturation, and pp cross-sections at the LHC Diffraction, saturation and pp cross sections at the LHC Konstantin Goulianos The Rockefeller.
K. Goulianos The Rockefeller University Pomeron Intercept and Slope: are they related? Small-x and Diffraction, FERMILAB, March 2007 intercept slope.
Manchester Dec 2003 Diffraction from HERA and Tevatron to LHCK. Goulianos1 Konstantin Goulianos The Rockefeller University Workshop on physics with.
1 Inclusive Double-Pomeron Exchange at the Fermilab Collider Authors : M.E. Convery, K. Goulianos, K. Hatakeyama The Rockefeller University Godparents.
The Rockefeller University and the CDF Collaboration
UK 8-12 Dec 2007 Alignment and Calibrations K. Goulianos1 Alignment and Calibrations Konstantin Goulianos The Rockefeller University Forward Physics.
19-24 May 2003K. Goulianos, CIPANP Konstantin Goulianos The Rockefeller University & The CDF Collaboration CIPANP-2003, New York City, May.
DIFFRACTION RESULTS FROM CDF XIX International Workshop on Deep-Inelastic Scattering and Related Subjects (DIS 2011) April 11-15, 2011 Newport News, VA.
Manchester Dec Dynamic Alignment of Roman Pots Konstantin Goulianos The Rockefeller University The Future of Forward Physics at the LHC Manchester,
Low x 2008, Kolymbari-Crete, GreeceDiffractive and Exclusive JJ and W/Z at CDF K. Goulianos1 Diffractive and Exclusive Production of Dijets and W/Z at.
BNL 3-5 Feb 2005Diffraction from CDF2LHC K. Goulianos1 Diffraction from CDF2LHC K. Goulianos Tev4LHC 3-5 February 2005 Brookhaven National Laboratory.
Hard Diffraction at HERA and the Tevatron Introduction QCD Factorization Diffractive Structure HERA Diffractive Dijets and VM HERA.
September 17-20, 2003.Kenichi Hatakeyama1 Soft Double Pomeron Exchange in CDF Run I Kenichi Hatakeyama The Rockefeller University for the CDF Collaboration.
CDF The Future of QCD at the Tevatron Fermilab, May 2004 Konstantin Goulianos The Rockefeller University.
ISMD July – 1 August 2004 Sonoma County, California, USA DIFFRACTION FROM THE DEEP SEA Konstantin Goulianos The Rockefeller University.
Diffraction at CDF 12th International Conference on Elastic and Diffractive Scattering Forward Physics and QCD – Blois2007 Hamburg, Germany, May.
Diffractive W/Z & Exclusive CDF II DIS 2008, 7-11 April 2008, University College London XVI International Workshop on Deep-Inelastic Scattering and.
Michele Gallinaro, "QCD Results at CDF" - XXXVIII Rencontres de Moriond, March 22-29, QCD Results at CDF Inclusive Jet Cross Section Dijet Mass.
Diffraction at CDF and Universality of Diffractive Factorization Breaking Konstantin Goulianos The Rockefeller University
Recent Results on Diffraction and Exclusive Production from CDF Christina Mesropian The Rockefeller University.
Factorization Breaking in Diffraction  pp,  p and  *p  Konstantin Goulianos The Rockefeller University.
Diffractive x-sections and event final states at the LHC Konstantin Goulianos The Rockefeller University CDF  PHENO  CMS
25 th of October 2007Meeting on Diffraction and Forward Physics at HERA and the LHC, Antwerpen 1 Factorization breaking in diffraction at HERA? Alice Valkárová.
23-28 June 2003K. Goulianos, Blois Workshop, Helsinki, Finland1 Konstantin Goulianos The Rockefeller University & The CDF Collaboration Xth Blois Workshop.
M. Gallinaro, `` RunII Diffractive Results: Blessing'' - QCD meeting, March 7, Blessing of Run II Diffractive Results Introduction Data Selection.
Diffractive and total pp cross sections at the LHC and beyond Konstantin Goulianos The Rockefeller University
The forward detectors of CDF and D0 K. Goulianos EDS 2009, June 29-July 3 1 The forward Detectors of CDF and D0 Konstantin Goulianos The Rockefeller University.
Diffraction with CDF II at the Tevatron Konstantin Goulianos The Rockefeller University and The CDF Collaboration.
Diffractive W and Z Production at Tevatron Konstantin Goulianos The Rockefeller University and the CDF collaboration Moriond QCD and High Energy Interactions.
4-7 June 2003K. Goulianos, Low-x Workshop, Nafplion1 Konstantin Goulianos The Rockefeller University & The CDF Collaboration Low-x Workshop, Nafplion,
K. Goulianos The Rockefeller University Diffraction at the Tevatron: CDF Results Diffraction 2006 Milos island, Greece, 5-10 September 2006  presented.
Aspen Feb Tevatron / LHC K. Goulianos1 DIFFRACTION FROM THE TEVATRON TO LHC Aspen Winter Conference February 2005 Konstantin.
Konstantin Goulianos The Rockefeller University Diffraction at CDF and at the LHC LOW X MEETING: HOTEL VILLA SORRISO, ISCHIA ISLAND, ITALY, September 8-13.
Predictions of Diffractive, Elastic, Total, and Total-Inelastic pp Cross Sections vs LHC Measurements Konstantin Goulianos The Rockefeller University DIS-2013,
2009 Diffraction at CDF and cross sections at the LHC K. Goulianos1 Diffraction at CDF and cross sections at the LHC K. Goulianos 9-12 Dec 2009.
K. Goulianos The Rockefeller University (Representing the CDF Collaboration) DIS April – 1 May Madison, Wisconsin Update on CDF Results on Diffraction.
K. Goulianos The Rockefeller University Pomeron Intercept and Slope: the QCD connection 12 th Blois Workshop, DESY, Hamburg, Germany May2007 intercept.
Heuijin LimICHEP04, Beijing, Aug. 1 Leading Baryons at HERA Introduction Diffractive structure function measured in events with a leading proton.
Predictions of Diffraction at the LHC Compared to Experimental Results Konstantin Goulianos The Rockefeller University 1
CERN Jan 2005Alignment of CDF Run II Roman Pots K. Goulianos1 HERA and the LHC K. Goulianos The Rockefeller University CERN January 2005 (talk.
K. Goulianos CDF RESULTS ON DIFFRACTION AND EXCLUSIVE PRODUCTION Konstantin Goulianos 14th Workshop on Elastic and Diffractive Scattering (EDS Blois Workshop.
Inclusive Diffraction at HERA Marcella Capua – INFN and Calabria University Small X and Diffraction FNAL Chicago (USA) 17 – 20 September 2003 on behalf.
Predictions of Diffractive and Total Cross Sections at LHC Confirmed by Measurements Konstantin Goulianos / Robert Ciesielski The Rockefeller University.
K. Goulianos The Rockefeller University Results from CDF on Diffraction  presented on behalf of the CDF collaboration  Workshop on Low x Physics Lisbon,
Marta Ruspa, "Inclusive diffraction", DIS Inclusive diffraction Diffractive cross section and diffractive structure function Comparison with colour.
K. Goulianos The Rockefeller University Renormalized Diffractive Parton Densities and Exclusive Production Diffraction 2006 Milos island, Greece, 5-10.
New results on diffractive t-distributions from CDF Konstantin Goulianos The Rockefeller University (for the CDF Collaboration) DIS-2012 DIS-2012, Bonn,
Predictions of Soft Processes at the LHC Implemented in PYTHIA8 Konstantin Goulianos* The Rockefeller University 1 low-x 2012 CyprusSoft Processes at LHC.
1 Diffractive dijets at HERA Alice Valkárová Charles University, Prague Representing H1 and ZEUS experiments.
Isabell-A. Melzer-Pellmann DIS 2007 Charm production in diffractive DIS and PHP at ZEUS Charm production in diffractive DIS and PHP at ZEUS Isabell-Alissandra.
LHC Results Support RENORM Predictions of Diffraction 1MIAMI 2014 LHC Results Support RENORM Predictions of Diffraction K.Goulianos Konstantin Goulianos.
HARD DIFFRACTION AT CDF Konstantin Goulianos (for the CDF II Collaboration) 1EDS2013, Saariselca Hard Diffraction at CDF K. Goulianos SAARISELKÄ, FINLAND.
Diffraction at Tevatron p p  p p p p  p (p) + X p p  p (p) + j j p p  p p + j j.
Diffraction at DØ Andrew Brandt University of Texas at Arlington E   Run IRun II Low-x Workshop June 6, 2003 Nafplion, Greece.
CDF RESULTS ON DIFFRACTION and EXCLUSIVE PRODUCTION Konstantin Goulianos 14th Workshop on Elastic and Diffractive Scattering (EDS Blois Workshop ) Frontiers.
17-20 September 2003K. Goulianos, Small x and Diffraction, Fermilab1 Konstantin Goulianos The Rockefeller University Small x and Diffraction
Diffraction at DØ Andrew Brandt University of Texas, Arlington Intro and Run I Hard Diffraction Results Run II and Forward Proton Detector Physics Colloquium.
New Results on Diffractive and Exclusive Production from CDF Konstantin Goulianos The Rockefeller University (for the CDF Collaboration) DIS-2013, Marseille.
Aspects of Diffraction at the Tevatron
Diffraction in ep collisions
DIFFRACTIVE DIJET PRODUCTION AT CDF
CDF RESULTS ON DIFFRACTION AND EXCLUSIVE PRODUCTION
Single Diffractive Higgs Production at the LHC *
Presentation transcript:

High Energy Physics Seminar University of Connecticut 7 February 2005 Konstantin Goulianos The Rockefeller University QCD ASPECTS OF HADRONIC DIFFRACTION  CDF results  Comparison with HERA  QCD aspects  Tev2LHC

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos2 What is Dark Energy? * * * H He E M * * * H He E M

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos3 Rapidity Gaps Gaps are exponentially suppressed From Poisson statistics: (  =particle density in rapidity space) Rapidity gaps are formed by multiplicity fluctuations. Non-diffractive interactions Bj, PRD 47 (1993) 101: regions of (pseudo)rapidity devoid of particles Rapidity gaps at t=0 grow with  y. Diffractive interactions 2  : negative particle density!

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos4 Forty Years of Diffraction 1960’sBNL: first observation of pp -> pX 1970’sFermilab fixed target, ISR, SPS  Regge theory & factorization Review: KG, Phys. Rep. 101 (1983) ’sUA8: diffractive dijets  hard diffraction 1990’sTev Run-I: Regge factorization breakdown Tev/ HERA: QCD factorization breakdown 21 st C Multigap diffraction: restoration of factorization Ideal for diffractive LHC

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos5 The First 20 Years KG, Phys. Rep. 101 (1983) 171 X POMERON: color singlet w/vacuum quantum numbers y 

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos6 The Last 20 Years 93(2004)141601

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos7 valence quarks antiproton x=x= Diffraction in QCD proton  g =0.20  q =0. 04  R =-0.5 g =0.5 q =0.3 SOFTHARD deep sea Derive diffractive from inclusive PDFs and color factors antiproton valence quarks p p

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos8 CDF in Run I-0 ( ) Elastic, single diffractive, and total cross 546 and 1800 GeV Roman Pot Spectrometers Roman Pot Detectors  Scintillation trigger counters  Wire chamber  Double-sided silicon strip detector Results  Total cross section  tot ~ s   Elastic cross section d  /dt ~ exp[2  ’ ln s ]  shrinking forward peak  Single diffraction Breakdown of Regge factorization Additional Detectors Trackers up to |  | = 7

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos9 Regge Theory

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos10  Unitarity problem: With factorization and std pomeron flux  SD exceeds  T at  Renormalization: normalize the pomeron flux to unity Renormalization KG, PLB 358 (1995) 379 ~10

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos11 A Scaling Law in Diffraction KG&JM, PRD 59 (1999) Factorization breaks down in favor of M 2 -scaling renormalization 1

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos12 The QCD Connection y  The exponential rise of  T (  y’) is due to the increase of wee partons with  y’ (see E. Levin, An Introduction to Pomerons,Preprint DESY ) y  Total cross section: power law rise with energy Elastic cross section forward scattering amplitude  s

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos13 2 independent variables: Gap probability Renormalization removes the s-dependence SCALING QCD Basis of Renormalization t color factor (KG, hep-ph/ )

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos14 The Factors  and  Experimentally: KG&JM, PRD 59 (114017) 1999 g =0.20 q =0.04 R =-0.5 f g =gluon fraction f q =quark fraction Color factor: Pomeron intercept: CTEQ5L

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos15 Run-I A,B: Rapidity Gap Studies Forward Detectors BBC 3.2<  <5.9 FCAL 2.4<  <4.2

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos16  Double Diffraction Dissociation  One central gap  Double Pomeron Exchange  Two forward gaps  SDD: Single+Double Diffraction  One forward + one central gap Central and Double Gaps

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos17 Gap probabilitySub-energy cross section (for regions with particles) Multigap Renormalization Same suppression as for single gap! 5 independent variables color factors (KG, hep-ph/ )

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos18  One-gap cross sections are suppressed  Two-gap/one-gap ratios are Central & Double-Gap Results Differential shapes agree with Regge predictions DDSDDDPE

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos19 Gap Survival Probability S = Results similar to predictions by: Gotsman-Levin-Maor Kaidalov-Khoze-Martin-Ryskin Soft color interactions

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos20 Soft Diffraction Summary  M 2 – scaling  Non-suppressed double-gap to single-gap ratios Experiment: Phenomenology:  Generalized renormalization  Obtain Pomeron intercept and tripe-Pomeron coupling from inclusive PDF’s and color factors

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos21  SOFT DIFFRACTION Hard CDF  HARD DIFFRACTION Additional variables: (x, Q 2 )  dN/d   =  P L /P L  =fractional momentum loss of scattered (anti)proton Variables: ( , t) or ( , t) MXMX  =-ln  t dN/d  ln M X 2

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos22 All fractions ~ 1%  Factorization ~ Tevatron at fixed c.m.s. energy. Diffractive CDF 1.45 (0.25)J/  0.62 (0.25)b 0.75 (0.10)JJ 1.15 (0.55)W Fraction(%) X SD/ND fraction at 1800 GeV

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos23 Diffractive HERA e Q2Q2 ** p jet  reorganize J. Collins: Factorization should hold e **  t p IP Pomeron exchangeColor reorganization

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos24 Inclusive vs Diffractive DIS  P (0)-1 (  q  )/2 F 2 ~ x  qq KG, “Diffraction: a New Approach,” J.Phys.G26: ,2000 e-Print Archive: hep-ph/

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos25  diff /  incl DIS at HERA At fixed x: flat Q 2 -dependence At fixed Q 2 : flat x-dependence

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos26 Diffractive Tevatron p jet reorganize jet

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos27 CDF-IC Run-ICRun-IA,B Forward Detectors BBC 3.2<  <5.9 FCAL 2.4<  <4.2

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos28 Roman Pot tracking

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos29 Diffractive Structure SD/ND Rates vs Measure ratio of SD/ND dijet rates as a f’n of In LO-QCD ratio of rates equals ratio of structure fn’s

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos30 F D JJ ( , Q 2 Tevatron

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos31 Tevatron vs HERA: Factorization Breakdown dN/d  gap dN/d  gap pp IP CDF H1 pp IP e **  t p IP Predicted in KG, PLB 358 (1995) 379

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos32 Restoring Factorization R(SD/ND) R(DPE/SD) DSF from two/one gap: factorization restored!

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos33 CDF-II Tag leading 0.02 <  < 0.1 Reject (retain) 95% of ND (SD)events detect forward particles

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos34 MiniPlug Calorimeter About 1500 wavelength shifting fibers of 1 mm dia. are ‘strung’ through holes drilled in 36x¼” lead plates sandwiched between reflective Al sheets and guided into bunches to be viewed individually by multi-channel photomultipliers.

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos35 Artist’s View of MiniPlug 25 in 5.5 in 84 towers

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos36 Diffractive dijets   =   all  towers)  E T e  ss  momentum loss fraction of pbar Approx. flat at  <0.1 const overlap events SD region MP energy scale: ±25% → Δ log ξ = ±0.1 RP acceptance (0.03< ξ < 0.1) ~ 80% (Run I)

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos37  : RP vs calorimeter overlap events signal region  cal distribution for slice of  RP  from RP  cal = (0.94 ± 0.03)  RP  /mean ~ 30%

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos38 Q 2 -dependence of SD/ND ratio  No appreciable Q 2 dependence within 100 < Q 2 < 10,000 GeV 2  Pomeron evolves similarly to proton

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos39 Exclusive Dijets in DPE Interest in diffractive Higgs production Calibrate on exclusive dijets Dijet mass fraction no peak! Upper limit for excl DPE-jj consistent with theory: KMR  60 25<E T J <35 GeV

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos40 Gap Between Jets Question

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos41 CDF2LHC TOPICSTATUS  (Q 2, t) dependence of DSFclose to ready  Exclusive  c production close to ready  Low mass states in DPEneed good trigger  Exclusive b-bbar production in DPE need b-trigger   -dependence of DSFneed low lum run  Jet-gap-Jet w /jets in miniplugsneed low lum run

UC seminar, 7 Feb 2005 QCD Aspects of HadronicDiffraction K. Goulianos42 Summary  M 2 – scaling  Non-suppressed double-gap to single-gap ratios  Flavor-independent SD/ND ratio  Little or no Q 2 -dependence in SD/ND ratio SOFT DIFFRACTION Universality of gap prob. across soft and hard diffraction Pomeron evolves similarly to proton HARD DIFFRACTION Diffraction appears to be a low-x partonic exchange subject to color constraints