Strange Particles from NE X US 3 NEXUS 3 : Consistent treatment of multiple scattering (Basic ideas, baryon production in pp) hep-ph/0007198 Physics Reports.

Slides:

Advertisements

Similar presentations

Physics Results of the NA49 exp. on Nucleus – Nucleus Collisions at SPS Energies P. Christakoglou, A. Petridis, M. Vassiliou Athens University HEP2006,

Advertisements

Initial and final state effects in charmonium production at RHIC and LHC. A.B.Kaidalov ITEP, Moscow Based on papers with L.Bravina, K.Tywoniuk, E.Zabrodin.

Direct Photon Production in pp collisions at the LHC Théorie LHC France 06 April 2010 IPN Lyon F.M. Liu IOPP/CCNU, Wuhan, China K. Werner Subatech, Nantes,

Tools for simulations Sarah Porteboeuf-Houssais LPC Clermont-Ferrand Physics at A Fixed Target ExpeRiment (AFTER) using the LHC beams 3-13 Febuary 2013.

1 Heavy Ion Collisions at LHC in a Multiphase Transport Model  A multi-phase transport (AMPT) model  Rapidity and transverse momentum distributions 

R. L. Thews Hard Probes 2004 Lisbon QUARKONIUM FORMATION IN STATISTICAL AND KINETIC MODELS R. L. THEWS UNIVERSITY OF ARIZONA HARD PROBES 2004 LISBON November.

DNP03, Tucson, Oct 29, Kai Schweda Lawrence Berkeley National Laboratory for the STAR collaboration Hadron Yields, Hadrochemistry, and Hadronization.

03/14/2006WWND2006 at La Jolla1 Identified baryon and meson spectra at intermediate and high p T in 200 GeV Au+Au Collisions Outline: Motivation Intermediate.

Terence Tarnowsky Long-Range Multiplicity Correlations in Au+Au at Terence J Tarnowsky Purdue University for the STAR Collaboration 22nd Winter Workshop.

Luan Cheng (Institute of Particle Physics, Huazhong Normal University) I. Introduction II. Interaction Potential with Flow III. Flow Effects on Light Quark.

Marcus Bleicher, Santiago de Compostela 2006 Particle number fluctuations and correlation Marcus Bleicher Institut für Theoretische Physik Goethe Universität.

1 Statistical Models and STAR’s Strange Data Sevil Salur Yale University for the STAR Collaboration.

Monte Carlo 2005, Chattanooga Parton String Models in Geant4 Gunter Folger, Johannes-Peter Wellisch CERN PH/SFT.

Event Simulation Tools in ALICE Andreas Morsch Generator Mini-Workshop CERN, Geneva June 20, 2003.

Lecture 5: Electron Scattering, continued... 18/9/2003 1

Parton Production in nn and AA collision 신기량 안동대학교 물리학과 Sept. 3, 2005 APCTP.

New States of Matter and RHIC Outstanding questions about strongly interacting matter: How does matter behave at very high temperature and/or density?

Marcus Bleicher, CCAST- Workshop 2004 Strangeness Dynamics and Transverse Pressure in HIC Marcus Bleicher Institut für Theoretische Physik Goethe Universität.

Glauber shadowing at particle production in nucleus-nucleus collisions within the framework of pQCD. Alexey Svyatkovskiy scientific advisor: M.A.Braun.

Uncertainties in jet event generators due to hadronizaton scheme, Other issues with energy loss on E-by-E hydro, and the extraction of transport coefficients.

Sevil Salur for STAR Collaboration, Yale University WHAT IS A PENTAQUARK? STAR at RHIC, BNL measures charged particles via Time Projection Chamber. Due.

Identified Particle Ratios at large p T in Au+Au collisions at  s NN = 200 GeV Matthew A. C. Lamont for the STAR Collaboration - Talk Outline - Physics.

Shibata lab. Ogoshi Shun P. Amaudruz et al., New Muon Collaboration Phys. Rev. Lett. 66 (1991) 2712 [Contents] 1.Introduction 2.Deep inelastic scattering.

NE X US hep-ph/ Physics Reports 350 (2001) Guideline: theoretical consistency hep-ph/ Phys. Rev. Lett. 86 (2001) 3506 Hajo Drescher,

Particle Physics Chris Parkes Experimental QCD Kinematics Deep Inelastic Scattering Structure Functions Observation of Partons Scaling Violations Jets.

Self-similarity of hadron production in pp and AA collisions at high energies D.A. Artemenkov, G.I. Lykasov, A.I. Malakhov Joint Institute for Nuclear.

Introduction The statistical model approach is established by analysis of particle ratios of the high energy heavy ion collisions in GSI-SIS to CERN-SPS.

Marcus Bleicher, TBS Berkeley 2005 What have we learned from transport models? Marcus Bleicher Institut für Theoretische Physik Goethe Universität Frankfurt.

SQM 2008 Beijing, China L. Bravina (University of Oslo), A. Capella, E.G. Ferreiro,A.B.Kaidalov, K. Tywoniuk, E.Zabrodin.

HADES versus DLS: no puzzle anymore ! Elena Bratkovskaya , Workshop ‚Bremsstrahlung in dilepton production‘ GSI, Darmstadt.

22 nd Winter Workshop on Nuclear Dynamics “Can STAR p+p data help constrain fragmentation functions for strange hadrons” Mark Heinz (for the STAR collaboration)

J/  production in p+p collisions at PHENIX and gluon distribution QWG meeting at FNAL September Hiroki Sato (Kyoto University) for the PHENIX collaboration.

Sarah Porteboeuf*, Klaus Werner, Tanguy Pierog Rencontres de Moriond, La Thuile, March 13th-20th 2010 Producing hard processes regarding the complete event:

Pp and d-Au at RHIC Contents: Interesting data from RHIC High parton densities pp and d-Au results Conclusion Fuming LIU (IOPP, Wuhan), Tanguy Pierog,

Seminários GFPAE – 02/ Diffractive heavy quark production at the LHC Mairon Melo Machado

Nucleon-Nucleon collisions. Nucleon-nucleon interaction at low energy Interaction between two nucleons: basic for all of nuclear physics Traditional goal.

STAR Modification of high-p T hadro-chemistry in Au+Au collisions relative to p+p Anthony Timmins for the STAR Collaboration 31st July 2009 Heavy-ion III.

Christoph Blume University of Heidelberg

Differentiating Quark and Gluon Jets Why and How ? Rene Bellwied (WSU) STAR high pt retreat Marin County, Jan 17-19, 2004.

1 June 24-29, Levoca, Slovakia Baryon-strangeness correlations in a partonic/hadron transport model F. Jin, Y. G. Ma, X. Z. Cai, G. L. Ma, H. Huang,

Yichun Xu (USTC/BNL)April 27-29, Hangzhou, CHINA1 Measurements of identified meson and baryon production at high p T in p+p and Au+Au collisions at STAR.

Measurement of Flavor Separated Quark Polarizations at HERMES Polina Kravchenko (DESY) for the collaboration  Motivation of this work  HERMES experiment.

Olena Linnyk Charmonium in heavy ion collisions 16 July 2007.

Understanding forward particle production Opportunities for Drell-Yan Physics at RHIC May 13 th, 2011 Roman Pasechnik Uppsala University, THEP group 1.

Christof Roland / MITQuark Matter 2004January 2004 Christof Roland / MIT For the NA49 Collaboration Quark Matter 2004 Oakland,CA Event-by-Event Fluctuations.

QM2008 Jaipur, India Feb.4– Feb. 10, STAR's Measurement of Long-range Forward- backward Multiplicity Correlations as the Signature of “Dense Partonic.

Light-Front Dynamic Application to the RHIC Physics Korea University, June 16, 2007 In collaboration with Prof. Byungsik Hong.

Christina Markert Hot Quarks, Sardinia, Mai Christina Markert Kent State University Motivation Resonance in hadronic phase Time R AA and R dAu Elliptic.

2010/04/18Yichun Measurements of identified hadron production at high p T in p+p and Au+Au collisions at RHIC-STAR 许依春 (Yichun Xu)

Bulk properties at RHIC Olga Barannikova (Purdue University) Motivation Freeze-out properties at RHIC STAR perspective STAR  PHENIX, PHOBOS Time-span.

Christina MarkertHirschegg, Jan 16-22, Resonance Production in Heavy Ion Collisions Christina Markert, Kent State University Resonances in Medium.

Particle Physics Particle Physics Chris Parkes Feynman Graphs of QFT QED Standard model vertices Amplitudes and Probabilities Forces from particle exchange.

Intermediate pT results in STAR Camelia Mironov Kent State University 2004 RHIC & AGS Annual Users' Meeting Workshop on Strangeness and Exotica at RHIC.

10/29/2007Julia VelkovskaPHY 340a Lecture 4: Last time we talked about deep- inelastic scattering and the evidence of quarks Next time we will talk about.

Production, energy loss and elliptic flow of heavy quarks at RHIC and LHC Jan Uphoff with O. Fochler, Z. Xu and C. Greiner Hard Probes 2010, Eilat October.

HADRON 2009, FloridaAnar Rustamov, GSI Darmstadt, Germany 1 Inclusive meson production at 3.5 GeV pp collisions with the HADES spectrometer Anar Rustamov.

Suppression of high P T hadron spectra in p+A collisions Wei-Tian Deng In Collaboration with: Rong Xu & Xin-Nian Wang arXiv:

High p T hadron production and its quantitative constraint to model parameters Takao Sakaguchi Brookhaven National Laboratory For the PHENIX Collaboration.

High-t Exclusive Reactions With Real Photons Gerald A. Miller, UW.

1 The Fritiof (FTF) Model in Geant4 V. Uzhinsky, B. Andersson et al., Nucl. Phys. B281 (1987) 289; B. Nilsson-Almquist and E. Stenlund, Comp.

ICPAQGP 2010 Goa, Dec. 6-10, Percolation & Deconfinement Brijesh K Srivastava Department of Physics Purdue University USA.

Recent Developments in Fritiof (FTF) Model V. Uzhinsky,

Mark T. Heinz Yale University

Improvement of DPM Generator

Is Strangeness production different in the Bulk and in Jets ?

Strangeness Production in Heavy-Ion Collisions at STAR

String Parton Models in Geant4

Main ingredient of the Fritiof model Fritiof model in Geant4

Energy dependence of stopping

Charmonium dissociation and recombination at RHIC and LHC

Presentation transcript:

Strange Particles from NE X US 3 NEXUS 3 : Consistent treatment of multiple scattering (Basic ideas, baryon production in pp) hep-ph/ Physics Reports 350 (2001) hep-ph/ Phys. Rev. Lett. 86 (2001) 3506 Fuming Liu Sergej Ostapchenko Tanguy Pierog Klaus Werner Hajo Drescher Michael Hladik Joerg Aichelin Marcus Bleicher SUBATECH, Nantes

Problems with the String Model Approach Particle production in pp scattering via string fragmentation pp ==> 2 strings Strings decay into chains of hadrons Not enough multiplicity fluctuations ==>

Two Pairs of strings In general: n pairs of strings

Probability of n pairs ? Gribov Regge :Pomeron (= pair of strings)... / 2 2

String model -- Gribov-Regge String model: first and subsequent pairs are of different nature Gribov-Regge: all Pomerons are identical String model: energy-momentum is properly shared among strings Gribov-Regge: energy-sharing is not considered inconsistent

And … traditional string models fail badly when it comes to strange baryon production in pp...

The new approach Aim: connecting properly string model and Gribov-Regge Theory … and the parton model Extending work by Gribov, Kaidalov, Capella...

Basic Features Result of a pp collisions: 2 remnants and n Pomerons (all identical) Pomeron = 2 strings Energy-momentum properly shared Same formalism for particle production and probability calculations

Notations Consider parton-parton scattering

Inelastic scattering in pp: Amplitude: Squared amplitude => interference terms: => Symbolic notation remnant

Inelastic scattering in AB: Squaring amplitude  sum over many interference terms expressed via cut and uncut elementary diagrams full energy conservation!! (Elastic and inelastic elem. Interactions) remnant Pomerons: multiplicity proportional to number of binary collisions Remnants: multiplicity proportional to participants

Pomeron-Pomeron Interactions Shadowing Saturation Diffraction Screening Increasing mult. fluctuations Solving F 2 -  tot puzzle 

Hadronization Multiple scattering theory determines how many Pomerons are involved in each nucleon-nucleon interaction and the momenta of each Pomeron. Then: Pomeron  strings Strings  hadrons

From Pomerons to Strings In the multiple scattering theory a dashed line represents a cut Pomeron The complicated hadronic structure is “hidden” What is the precise structure of a cut Pomeron? Pomeron = 2 strings

1 Pomeron2 Pomerons etc Projectile remnant Target remnant strings Crucial: separation of Pomerons and remnants otherwise completely wrong baryon yields (FM Liu, M Bleicher, J Aichelin, T. Pierog, KW et al) pp scattering: q, q-bar or qq qq-bar (sea quarks)

Baryon ratios in pp at 158 GeV 3 Traditional string models NEXUS: < 1

Antibaryon/baryon ratios at RHIC (pp -1<y<1): NEXUS: data (A.Billmeier,STAR): proton: 0.81 ( ) Lambda: ( ) Xi: 0.95 ( ) Omega: 0.94 ( )

Why does the conventional string model give more antiomegas than omegas? A string end flavor u or d prevents the production of omegas NEXUS : projectile/target flavor is in the remnants not in the strings

Baryon spectra in pp at 158 GeV Data: NA49 Leading particles (mainly from remnants) Theory: NEXUS (FM Liu et al)

Summary Consistent multiple scattering formalism => separation remnants - Pomerons (strings) => antibaryon/baryon ratios R < 1 contrary to conventional string models strings: R = 1 remnants: R < 1