September 17-20, 2003.Kenichi Hatakeyama1 Soft Double Pomeron Exchange in CDF Run I Kenichi Hatakeyama The Rockefeller University for the CDF Collaboration.

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.

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

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

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.

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

Diffractive and Total pp cross sections at LHC K. Goulianos EDS 2009, June 29-July 3 1 Diffractive and Total pp Cross Sections at LHC Konstantin Goulianos.

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

23-28 June 2003K. Goulianos, Blois Workshop, Helsinki, Finland1 Konstantin Goulianos The Rockefeller University & The CDF Collaboration Xth Blois Workshop.

The Diffractive Structure Function: ξ dependence Christina Mesropian The Rockefeller University.

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

Diffraction with CDF II at the Tevatron Konstantin Goulianos The Rockefeller University and The CDF Collaboration.

Interjet Energy Flow at ZEUS. Patrick Ryan. Univ. of Wisconsin DPF, Aug. 27, Patrick Ryan University of Wisconsin Aug. 27, 2004 Interjet Energy.

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.

Diffractive Results from Workshop on low x physics, Antwerp 2002 Brian Cox   E Diffractive W and Z Observation of double diffractive dijets Run 1 highlights.

Predictions of Diffractive, Elastic, Total, and Total-Inelastic pp Cross Sections vs LHC Measurements Konstantin Goulianos The Rockefeller University DIS-2013,

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.

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.

CMS results on soft diffraction Konstantin Goulianos (on behalf of the CMS collaboration ) The Rockefeller University EDS BLOIS 2013, 15 th Conference.

Diffractive Dijet Production Hardeep Bansil University of Birmingham SM Soft QCD topical meeting: Diffraction and Forward Detectors 24/05/2011.

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,

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.

Review of RENORM Diffractive Predictions for LHC up to 8 TeV and Extension to 13 TeV Konstantin Goulianos 1DIS-2015.

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.

1 Diffractive heavy quark production in AA collisions at the LHC at NLO* Mairon Melo Machado GFPAE – IF – UFRGS

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.

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.

RENORM Diffractive Predictions Extended to Higher LHC and Future Accelerator Energies Konstantin Goulianos

New Results on Diffractive and Exclusive Production from CDF Konstantin Goulianos The Rockefeller University (for the CDF Collaboration) DIS-2013, Marseille.

Observation of Diffractively Produced W- and Z-Bosons

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 *

Observation of Diffractively Produced W- and Z-Bosons

Presentation transcript:

September 17-20, 2003.Kenichi Hatakeyama1 Soft Double Pomeron Exchange in CDF Run I Kenichi Hatakeyama The Rockefeller University for the CDF Collaboration Small-x and Diffraction 2003 Fermilab, Illinois, USA

September 17-20, 2003.Kenichi Hatakeyama2 Introduction Shaded Area : Region of Particle Production

September 17-20, 2003.Kenichi Hatakeyama3 Main Issue in Hadronic Diffraction : results from single diffractive (SD) dijet production  The diffractive structure function measured using SD dijet events at the Tevatron is smaller than that at HERA by approximately an order of magnitude.  The discrepancy is generally attributed to additional color exchanges which spoil the “diffractive” rapidity gap. ~10 Factorization Breakdown CDF Collaboration, Phys. Rev. Lett. 84, (2000).

September 17-20, 2003.Kenichi Hatakeyama4 Dijet Production in DPE  Dijet production by double pomeron exchange was studied by CDF.  R[DPE/SD] is larger than R[SD/ND] by a factor of about 5. CDF Collaboration, Phys. Rev. Lett. 85, (2000). The formation of the 2nd gap is not as suppressed as the 1st gap. Extract diffractive structure function from R[DPE/SD] and compare it with expectations from HERA results.

September 17-20, 2003.Kenichi Hatakeyama5 Diffractive Structure Function measured using DPE dijet events The diffractive structure function measured using DPE dijets is approximately equal to expectations from HERA! Factorization holds?

September 17-20, 2003.Kenichi Hatakeyama6 Unitarity problem : Soft Diffraction : Inclusive (Soft) SD Results  The measured SD cross section is smaller than the Regge theory prediction by approximately an order of magnitude at the Tevatron energy.  Normalizing the integral of the pomeron flux (f IP/p ) to unity yields the correct √s- dependence of σ SD. Is the formation of the second gap suppressed? Tevatron data Study DPE Similar results were obtained for double diffraction as well. Renormalization

September 17-20, 2003.Kenichi Hatakeyama7 Inclusive (Soft) DPE Cross Section  Regge theory prediction + factorization :  Flux renorm. model : (both gaps are suppressed.) K. Goulianos, Phys. Lett. B 353, 379 (1995).  Gap probability (P gap ) renorm. model : P gap is renormalized. (only one gap is suppressed.) K. Goulianos, e.g. hep-ph/ (2001). = κ=g/β(0). g:triple-Pomeron coupling,

September 17-20, 2003.Kenichi Hatakeyama8 Analysis Strategy  Use events triggered on a leading antiproton.  ξ pbar is measured by Roman Pots : ξ pbar RPS.  Measure ξ p (ξ pbar ) from BBC and calorimeters : ξ p X (ξ pbar X ).  Calibrate ξ X by comparing ξ pbar RPS and ξ pbar X.  Plot ξ p X distribution and look for a DPE signal expected in the small ξ p X region.

September 17-20, 2003.Kenichi Hatakeyama9 Reconstruction of ξ p X Calorimeters : use E T and η of towers above noise level. BBC : use hits in BBC scintillation arrays. p T is chosen to follow the “known” p T spectrum : Use calorimeter towers and BBC hits to reconstruct ξ p : Calorimeters BBC

September 17-20, 2003.Kenichi Hatakeyama10 Calibration of ξ X ξ X distribution in every ξ RPS bin is fitted to P1 : Peak P2 : Width P2/P1 = 0.57 (ξ X resolution is ~60%.) ξ X = ξ RPS, (ξ X is calibrated so that ξ X = ξ RPS.)

September 17-20, 2003.Kenichi Hatakeyama11 ξ p X Distribution  The input ξ p distribution in DPE MC is 1/ξ p 1+ε (ε = is obtained from p ± p/π ± p/K ± p total cross sections).  The DPE and SD MC distributions are independently normalized to the data distribution.  The measured ξ p X distribution is in agreement with the DPE+SD MC distribution.

September 17-20, 2003.Kenichi Hatakeyama12 DPE Fraction in SD Events R[DPE/SD(incl)] GeV Data0.195±0.001± ±0.001±0.012 Regge + factorization Flux Renormalization0.041 P gap Renormalization In agreement with the renormalized gap predictions!

September 17-20, 2003.Kenichi Hatakeyama13 Soft Diffraction : Summary σ (mb) Gap Fraction Good Agreement with Renormalized Gap Predictions! SDDD DPE SDD

September 17-20, 2003.Kenichi Hatakeyama14 Conclusions  The measured ξ p X distribution exhibits ~1/ξ 1+ε behavior (ε = 0.104).  The measured DPE fraction in SD is : for <ξ pbar < and ξ p < 0.02 at √s = 1800 GeV.  in agreement with the renormalized gap prediction. In events with a rapidity gap, the formation of a second gap is “unsuppressed”!