H1 FPS + ZEUS LPS1 Regge fit, H1 FPS HERA II data 1 Parameterization of x IP and t dependences for IP and IR Fixed parameters for IR (from H1 DPDF Fits):

Slides:

Advertisements

Similar presentations

1 Quarkonium polarization with PHP data A. Bertolin QWG DESY 16/10/07 Outlook: (inelastic) quarkonium at HERA cross section measurements in PHP (new)

Advertisements

Measurement of F 2 and F L at low Q 2 in ep Interactions at HERA  H1 and ZEUS analyses at low Q 2  Extraction of F L  Summary and Outlook Tomáš Laštovička.

ZEUS high Q 2 e + p NC measurements and high-x cross sections A.Caldwell Max Planck Institute for Physics On behalf of the ZEUS Collaboration Allen Caldwell.

H. Lim, J. Schoeffel, M. StrikmanTsukuba Japan, Apr. 23, Heuijin Lim*(ANL), Laurent Schoeffel(Saclay), Mark Strikman(PSU) DIS2006 Diffraction and.

 0, ,  + exclusive electroproduction on the proton at CLAS on the proton at CLAS.

Low x workshop Helsinki 2007 Joël Feltesse 1 Inclusive F 2 at low x and F L measurement at HERA Joël Feltesse Desy/Hamburg/Saclay On behalf of the H1 and.

Interjet Energy Flow. Patrick Ryan, Univ. of Wisconsin Collaboration Meeting, June 6, Patrick Ryan University of Wisconsin Claire Gwenlan Oxford.

H1 FPS + ZEUS LPS1 H1 / ZEUS data consistency α β=0.56,x IP = β=0.018,x IP = Q2Q2 (β, x IP ) bins, where there is a tension between H1 HERA2.

Precision Measurement of F 2 with H1 Workshop on DIS and QCD, Florence, Max Klein for the H1 Collaboration Towards today The Measurement Results.

Diffractive Hadroproduction of W +, W - and Z 0 bosons at high energies (*) Maria Beatriz Gay Ducati High Energy Phenomenology Group GFPAE - IF – UFRGS,

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.

Chris Barnes, Imperial CollegeWIN 2005 B mixing at DØ B mixing at DØ WIN 2005 Delphi, Greece Chris Barnes, Imperial College.

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

Eta for Au-Au 9 GeV Events (All). Eta for Au-Au 9 GeV Events.

Study of e + e  collisions with a hard initial state photon at BaBar Michel Davier (LAL-Orsay) for the BaBar collaboration TM.

M.KapishinDiffraction using Proton Spectrometers at HERA 1 Results on Diffraction using Proton Spectrometers at HERA Low-x Meeting: Paphos, Cyprus, June.

Paul Laycock University of Liverpool BLOIS 2007 Diffractive PDFs.

LISHEP 2009, M. Ruspa, Inclusive Diffraction at HERA Marta Ruspa (Univ. Piemonte Orientale, Italy) LISHEP 2009 Rio de Janeiro, February,

M.KapishinDiffraction and precise QCD measurements at HERA 1 Rencontres de Moriond QCD 2012 M.Kapishin, JINR on behalf of the H1 and ZEUS Collaborations.

Update on fits for 25/3/08 AM Cooper-Sarkar Central fit: choice of parametrization Central fit: choice of error treatment Quality of fit to data PDFs plus.

Jan, 2007M. Block, Aspen Winter Physics Conference 1 Imposing the Froissart bound on DIS ---> New PDF's for the LHC Martin Block Northwestern University.

1 Jets in diffraction and factorization at HERA Alice Valkárová Charles University, Prague On behalf of H1 and ZEUS collaborations.

News on ZEUS Leading Baryon analyses Roberto Sacchi Università di Torino and INFN DIS2004 Workshop Slovakia, April 14-18, 2004 Introduction Study of the.

Factorization Breaking in Diffractive Photoproduction of Dijets Motivation Diffractive parton densities Multipomeron exchanges Direct and resolved photoproduction.

K.Hiller ISMD 2003 Cracow 1 Introduction Vector Mesons DVCS Diffractive DIS Final States: Charm & Jets Charm & JetsSummary K.Hiller DESY Zeuthen on behalf.

Neutral Current Deep Inelastic Scattering in ZEUS The HERA collider NC Deep Inelastic Scattering at HERA The ZEUS detector Neutral current cross section.

H1 FPS + ZEUS LPS1 t-slope: H1 FPS HERA II DESY H1 FPS HERA II t-slope as a function of β,Q 2,x IP (108 data points) ─ Regge fit IP+IR to σ r D(4)

Heuijin LimICHEP04, Beijing, Aug. 1 Leading Baryons at HERA Introduction Diffractive structure function measured in events with a leading proton.

NEW RESULTS FROM JET PHYSICS AT HERA Thomas Schörner-Sadenius Hamburg University 2 nd HERA-LHC Workshop June 2006.

DIJET (and inclusive-jet) CROSS SECTIONS IN DIS AT HERA T. Schörner-Sadenius (for the ZEUS collaboration) Hamburg University DIS 06, April 2006 Tsukuba,

A review of diffraction at HERA

LISHEP Rio de Janeiro1 Factorization in diffraction Alice Valkárová Charles University, Prague On behalf of H1 and ZEUS collaborations.

Inclusive Diffraction at HERA Marcella Capua – INFN and Calabria University Small X and Diffraction FNAL Chicago (USA) 17 – 20 September 2003 on behalf.

On quasi-two-body components of (for 250fb -1 ) (for 250fb -1 ) J.Brodzicka, H.Palka INP Krakow DC Meeting May 16, 2005 B +  D 0 D 0 K + B +  D 0 D 0.

HERA-LHC workshop 21 st -24 th March 2005 Claire Gwenlan (with the help of Sasha Glazov, Max Klein, Gordana Lastovicka-Medin, Tomas Lastovicka)  Introduction.

H1 FPS + ZEUS LPS1 FPS/LPS Combination Preliminary request M.Ruspa, V. Sola, M.Kapishin, R.Polifka.

Hadron Structure 2009 Factorisation in diffraction Alice Valkárová Charles University, Prague Representing H1 and ZEUS experiments Hadron structure.

Event Shapes, Alexander Savin University of WisconsinDIS 2006, April 21, Event Shapes in NC DIS at ZEUS Alexander A. Savin University of Wisconsin.

J.Feltesse1 Measurement of F L the longitudinal structure function at HERA Low x meeting, Lisbon, Portugal 28 June 2006.

Isabell-A. Melzer-Pellmann Photon 2005, Diffractive interactions in ep collisions Diffractive interactions in ep collisions Isabell-Alissandra.

1 Diffractive dijets at HERA Alice Valkárová Charles University, Prague Representing H1 and ZEUS experiments.

Jets and α S in DIS Maxime GOUZEVITCH Laboratoire Leprince-Ringuet Ecole Polytechnique – CNRS/IN2P3, France On behalf of the collaboration On behalf of.

11 QCD analysis with determination of α S (M Z ) based on HERA inclusive and jet data: HERAPDF1.6 A M Cooper-Sarkar Low-x meeting June 3 rd 2011 What inclusive.

DIJET (and inclusive-jet) CROSS SECTIONS IN DIS AT HERA T. Schörner-Sadenius (for the ZEUS collaboration) Hamburg University DIS 06, April 2006 Tsukuba,

Results on Inclusive Diffraction From The ZEUS Experiment Data from the running period The last period with the ZEUS Forward Plug Calorimeter.

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.

Inelastic J/  with ZEUS A. Bertolin 12th International Workshop on Deep Inelastic Scattering Outlook: kinematics and production channels J/  differential.

The energy spectrum from the KASCADE- Grande muon data (Update) Juan Carlos Arteaga-Velázquez for the KASCADE-Grande Collaboration Institute of Physics.

H1 and ZEUS Combined PDF Fit DIS08 A M Cooper Sarkar on behalf of ZEUS and H1 HERA Structure Function Working Group NLO DGLAP PDF fit to the combined HERA.

Costas Foudas, Imperial College, Jet Production at High Transverse Energies at HERA Underline: Costas Foudas Imperial College

Outline Motivation DDIS kinematics Introduction of different diffractive data sets Global fit procedure Results and conclusion Sara Taheri Monfared (Semnan.

Heavy Quark Production in 920GeV Proton Nucleus Interactions Michael Danilov ITEP, Moscow Representing HERA-B Collaboration Outline 1.Detector and data.

F Don Lincoln f La Thuile 2002 Don Lincoln Fermilab Tevatron Run I QCD Results Don Lincoln f.

1 D *+ production Alexandr Kozlinskiy Thomas Bauer Vanya Belyaev

CNI polarizations in Run09: Summary A.Bazilevsky For the RHIC CNI Group March 26, 2010 RSC meeting.

Low x workshop, Ischia Representing H1 and ZEUS experiments Alice Valkárová Charles University, Prague Inclusive diffraction and leading.

Quarkonia production with the HERA-B experiment J. Spengler, MPI Heidelberg.

A  scale,  ’ and b in diffractive vector meson production A.Rostovsev (ITEP, Moscow) Low-x 2007 August 31.

Elastic meson-nucleon and nucleon-nucleon scattering: models vs. all available data. E. Martynov *, J.R. Cudell, A. Lengyel * Bogolyubov Institute for.

Upsilon production and μ-tagged jets in DØ Horst D. Wahl Florida State University (DØ collaboration) 29 April 2005 DIS April to 1 May 2005 Madison.

Hisaki Hayashii (NWU, Japan) for the Belle collaboration

Diffraction in ep collisions

Diffraction at HERA Alice Valkárová Charles University, Prague

The energy spectrum from the KASCADE-Grande muon data

-·.-...-· A. -.. ) ,.,.. -.,., · o# --·'1>,.. ·-·-. ·-· ;'/' : ,.,. - ' p ·-·- ·-- 'II"; -.-. t-.. p

Study of e+e collisions with a hard initial state photon at BaBar

L*(1520) Photoproduction in gppK+K- from the g11 data set

Diffractive PDF fits and factorisation tests at HERA

Strangeness Production in p+A Collisions at √s = 41.6 GeV

Study of coherent c.s. dependence on Energy, what was done

Presentation transcript:

H1 FPS + ZEUS LPS1 Regge fit, H1 FPS HERA II data 1 Parameterization of x IP and t dependences for IP and IR Fixed parameters for IR (from H1 DPDF Fits): α´ IR =0.3 GeV -2, B IR =1.6 GeV -2, F 2 IR (β,Q 2 ) – π structure function (Owens), small F L D contribution is not corrected yet (→ H DPDF fit B) Free parameters: α IP (0), α´ IP, B IP, n IR, α IR (0) and IP normalization F 2 IP (β,Q 2 ) in every (β,Q 2 ) bin → 322 σ r D(4) data points, 288 degrees of freedom (DESY ) → total errors (statistical and systematic errors added in quadrature) Assume proton vertex factorization for IP and IR

H1 FPS + ZEUS LPS2 Regge fit, ZEUS LPS data 2 Fixed parameters for IR (as in ZEUS Regge Fit): α´ IR =0.9 GeV -2, B IR =2.0 GeV -2, F 2 IR (β,Q 2 ) – π structure function (Owens instead of GRV), selection of data points with y<0.5, where F L D contribution is neglected Free parameters: α IP (0), α´ IP, B IP, n IR, α IR (0) and IP normalization F 2 IP (β,Q 2 ) in every (β,Q 2 ) bin → 178 σ r D(4) data points, 153 degrees of freedom (DESY ) → total errors (statistical and systematic errors added in quadrature) Integrate over Δt bins for IP and IR

H1 FPS + ZEUS LPS3 Results of H1+ZEUS Regge fits 3 α IP (0) = ± α´ IP = ± 0.03 GeV -2 B IP = 6.3 ± 0.3 GeV -2 α IR (0) = 0.44 ± n IR ≃ 2.0, χ 2 = 514 / 450 (~1.14) ZEUS LPS Regge fit, y<0.5 (cross check) α IP (0) = ± α´ IP = 0.28 ± 0.03 GeV -2 B IP = 3.0 ± 0.3 GeV -2 α IR (0) = 0.65 ± 0.06 n IR ≃ 2.2, χ 2 = 470 / 450 (~1.05) H1+ZEUS Regge fit, IR(H1)H1+ZEUS Regge fit, IR(ZEUS) α IP (0) = 1.09 ± 0.02 α´ IP = ± 0.06 GeV -2 B IP = 7.2 ± 0.65 GeV -2 α IR (0) = 0.66 ± 0.10 n IR ≃ 1.8, χ 2 = 146 / 153 (~0.95) IR(H1)  α IP (soft) ~ 1.08 α' IP ≃ 0 → no “shrinkage” IR(ZEUS)  α IP ~ 1.18 α' IP (soft)~ 0.28 GeV -2

H1 FPS + ZEUS LPS4 x IP σ r D(4) (β,Q 2,x IP,t) DESY H1 FPS HERA II σ r D(4) as a function of β,Q 2,x IP,t (322 points) ─ H1+ZEUS Regge fit IR(H1) Χ 2 = 253 / 288 (~0.88) --- H1+ZEUS Regge fit IR(ZEUS) Χ 2 = 242 / 288 (~0.84)

H1 FPS + ZEUS LPS5 t-slope: H1 FPS HERA II DESY H1 FPS HERA II t-slope as a function of β,Q 2,x IP (108 data points) ─ H1+ZEUS Regge fit IR(H1) --- H1+ZEUS Regge fit IR(ZEUS)

H1 FPS + ZEUS LPS6 x IP σ r D(4) (β,Q 2,x IP,t) DESY ZEUS LPS σ r D(4) as a function of β,Q 2,x IP,t (182 points, no y<0.5 cut) ─ H1+ZEUS Regge fit IR(H1) Χ 2 = 262 / 157 (~1.67) --- H1+ZEUS Regge fit IR(ZEUS) Χ 2 = 229 / 157 (~1.46)

H1 FPS + ZEUS LPS7 Average t-slope as a function of x IP ─ W IR from ZEUS (β,Q 2,x IP ) points -- W IR from ZEUS (β,Q 2,x IP ) points ─ H1 FPS HERA II Regge fit  H1+ZEUS Regge fits with IR(H1) and IR(ZEUS) give different average t-slope behavior with x IP  average t-slope depends on W IR

H1 FPS + ZEUS LPS8 Average t-slope as a function of x IP --- Regge fit uncertainty band H1 FPS HERA II DESY H1 FPS HERA I DESY ZEUS LPS 2 DESY ─ H1 FPS HERA II Regge fit

H1 FPS + ZEUS LPS9 Backup: published H1 and ZEUS Regge fits 9 H1 FPS HERA-1 parameterization: α IP (0) = 1.10 ± 0.02 (exp.) ± 0.03 (model) α´ IP = 0.04 ±0.02 (exp.) ± 0.08 (model) GeV -2 B IP = 5.73 ±0.25 (exp.) ± 0.80 (model) GeV -2 ZEUS LPS Regge fit: Compare with published HERA results:  α IP (0) ≃ α IP (soft)~1.08  α' IP ≃ 0 → no “shrinkage” (α' IP (soft)~0.25 GeV -2 )  B IP consistent with hard process H1 FPS HERA-2 DESY :

H1 FPS + ZEUS LPS10 ZEUS LPS DESY