ALICE and the Little Bang

Slides:

Advertisements

Similar presentations

Open heavy flavours and quarkonia measurements with ALICE 23 rd rencontres de Blois Tuesday 31 May 2011 Bruno Espagnon IPN Orsay – Univ. Paris Sud 23 rd.

Advertisements

1 Jet Structure of Baryons and Mesons in Nuclear Collisions l Why jets in nuclear collisions? l Initial state l What happens in the nuclear medium? l.

Fukutaro Kajihara (CNS, University of Tokyo) for the PHENIX Collaboration Heavy Quark Measurements by Weak-Decayed Electrons at RHIC-PHENIX.

Charm & bottom RHIC Shingo Sakai Univ. of California, Los Angeles 1.

Heavy flavor production in sqrt(s NN )=200 GeV d+Au Collisions at PHENIX DNP 2013 Matthew Wysocki, Oak Ridge National Lab Newport News, Virginia, Oct 25,

Di-electron Continuum at PHENIX Yorito Yamaguchi for the PHENIX collaboration CNS, University of Tokyo Rencontres de Moriond - QCD and High Energy Interactions.

A probe for hot & dense nuclear matter. Lake Louise Winter Institute 21 February, 2000 Manuel Calderón de la Barca Sánchez.

Relativistic Heavy-Ion Collisions: Recent Results from RHIC David Hardtke LBNL.

Sourav Tarafdar Banaras Hindu University For the PHENIX Collaboration Hard Probes 2012 Measurement of electrons from Heavy Quarks at PHENIX.

Recent measurements of open heavy flavor production by PHENIX Irakli Garishvili, Lawrence Livermore National Laboratory PHENIX collaboration  Heavy quarks.

1 OPEN HEAVY FLAVOUR PRODUCTION IN pp COLLISIONS WITH AT LHC Rosa Romita ( ) for the ALICE Collaboration.

High p T  0 Production in p+p, Au+Au, and d+Au Stefan Bathe UC Riverside for the Collaboration Topics in Heavy Ion Collisions McGill University, Montreal,

Direct photon at RHIC-PHENIX Kensuke Okada (RBRC) For the PHENIX collaboration Rencontres de Moriond March 13, /13/20121K.Okada.

PHENIX Heavy-Flavor Results Matt Snowball (LANL) on behalf of the PHENIX collaboration Hard Probes 2015.

Single Electron Measurements at RHIC-PHENIX T. Hachiya Hiroshima University For the PHENIX Collaboration.

R CP Measurement with Hadron Decay Muons in Au+Au Collisions at √s NN =200 GeV WooJin Park Korea University For the PHENIX Collaboration.

Francesco Prino INFN – Sezione di Torino DNP Fall Meeting, Newport Beach, October 25 th 2011 Heavy flavours in heavy ion collisions at the LHC.

Heavy flavor results from PHENIX at RHIC Raphaël Granier de Cassagnac on behalf of the PHENIX collaboration LLR – École polytechnique / IN2P3 Deep Inelastic.

Heavy flavor production at RHIC Yonsei Univ. Y. Kwon.

The 6 th International Conference of Hard and Electromagnetic Probes of High-Energy Nuclear Collisions, Cape Town, South Africa, November 4-8, 2013 Nuclear.

Energy Scan of Hadron (  0 ) Suppression and Flow in Au+Au Collisions at PHENIX Norbert Novitzky for PHENIX collaboration University of Jyväskylä, Finland.

NEUTRAL MESON PRODUCTION IN PP AND PB-PB COLLISIONS AT LHC Dmitry Blau, for the ALICE collaboration NRC “Kurchatov Institute” LHC on the March

Ralf Averbeck Stony Brook University Hot Quarks 2004 Taos, New Mexico, July 19-24, 2004 for the Collaboration Open Heavy Flavor Measurements with PHENIX.

Dilepton Radiation Measured in PHENIX probing the Strongly Interacting Matter Created at RHIC Y. Akiba (RIKEN Nishina Center) for PHENIX Collaboration.

Z, W bosons: well calibrated probe in pp LHC energies: access to Z, W in pA and AA Electroweak bosons in dilepton channel: No final state modification.

Probing the properties of dense partonic matter at RHIC Y. Akiba (RIKEN) for PHENIX collaboration.

First measurements in Pb—Pb collisions at  s NN =2.76 TeV with ALICE at the LHC M. Nicassio (University and INFN Bari) for the ALICE Collaboration Rencontres.

1 Fukutaro Kajihara (CNS, University of Tokyo) for the PHENIX Collaboration Heavy Quark Measurement by Single Electrons in the PHENIX Experiment.

Ralf Averbeck, Stony Brook University XXXX th Rencontres de Moriond La Thuile, Italy, March 12-19, 2005 The Charm (and Beauty) of RHIC l Heavy flavor in.

OPEN HEAVY FLAVORS 1. Heavy Flavor 2 Heavy quarks produced in the early stages of the collisions (high Q2)  effective probe of the high-density medium.

JPS/DNPY. Akiba Single Electron Spectra from Au+Au collisions at RHIC Y. Akiba (KEK) for PHENIX Collaboration.

Matt Durham Results on Open and Hidden Heavy Flavor.

1 Guannan Xie Nuclear Modification Factor of D 0 Mesons in Au+Au Collisions at √s NN = 200 GeV Lawrence Berkeley National Laboratory University of Science.

News from ALICE Jan PLUTA Heavy Ion Reaction Group (HIRG) Warsaw University of Technology February 22, XIII GDRE Workshop, SUBATECH, Nantes.

BY A PEDESTRIAN Related publications direct photon in Au+Au  PRL94, (2005) direct photon in p+p  PRL98, (2007) e+e- in p+p and Au+Au 

Results from ALICE Christine Nattrass for the ALICE collaboration University of Tennessee at Knoxville.

24 Nov 2006 Kentaro MIKI University of Tsukuba “electron / photon flow” Elliptic flow measurement of direct photon in √s NN =200GeV Au+Au collisions at.

Heavy Flavor Measurements at RHIC&LHC W. Xie (Purdue University, West Lafayette) W. Xie (Purdue University, West Lafayette) Open Heavy Flavor Workshop.

6 th International Conference on Physics and Astrophysics of Quark Gluon Plasma December 6-10, 2010 Goa, India C. Zampolli for the ALICE Collaboration.

Recent results from the ALICE experiment on open heavy flavours Sarah Porteboeuf-Houssais for the ALICE collaboration 52th International Winter Meeting.

Non-Prompt J/ψ Measurements at STAR Zaochen Ye for the STAR Collaboration University of Illinois at Chicago The STAR Collaboration:

1 Marcello Lunardon - BEACH 2006, Lancaster, UK The 7th International Conference on Hyperons, Charm And Beauty Hadrons - BEACH 2006 Lancaster, July 2-8.

Outline Introduction LHC and ALICE Heavy-quark production in pp

Review of ALICE Experiments

Francesco Prino INFN – Sezione di Torino

Sedat Altınpınar for the ALICE Collaboration

Heavy-flavor particle correlations - From RHIC to LHC

Open charm production in pp and Pb-Pb collisions in ALICE at the LHC

High-pT Identified Hadron Production in Au+Au and Cu+Cu Collisions

Heavy-flavour production in heavy-ion collisions

for the ALICE collaboration University of Tennessee at Knoxville

The NA60 experiment Reproducing in the lab the early Universe conditions: a plasma of deconfined quarks and gluons (QGP) Third generation experiment which.

Heavy-Flavour Physics in Heavy-Ion Collisions

Quarkonium production in ALICE

Open heavy flavor analysis with the ALICE experiment at LHC

Charm production at STAR

Status and Implications of PID measurements at high pT

Heavy Ion Physics in RUN14-16

Recent Results of Quarkonia Production at CMS

In-Medium Energy Loss and Correlations in Pb-Pb Collisions at 2

Open heavy-flavour results from ALICE

Strangeness in Quark Matter 2007

Open charm and beauty in pp collisions with ALICE

for the ALICE Collaboration

Identified Charged Hadron Production

Introduction of Heavy Ion Physics at RHIC

First Hints for Jet Quenching at RHIC

Heavy Ion Physics with LHCb

Hadron Formation in Nuclei in Deep-inelastic Scattering

Presentation transcript:

ALICE and the Little Bang QCD phase transition (QGP  hadrons) at tUniverse ~10 ms In high-energy heavy-ion collisions, large energy densities (> 2–3 GeV/fm3) are reached over large volumes (>> 100 fm3) Temperature Baryonic density U. Heinz Big Bang Little Bang high temperature high energy density low baryonic density quark-gluon plasma formation of nucleons formation of nuclei 208Pb 208Pb Rencontres de Physique, La Thuile, 01.03.11 Andrea Dainese

ALICE apparatus and datasets Two main parts: barrel (|h|<0.9), B = 0.5 Tesla forward muon spectrometer, -4<h<-2.5 Crucial for HF: vertexing, tracking hadron and lepton ID Datasets used for the results shown here: Pb-Pb collision centrality determination: Glauber model analysis of large-h V0 scintillator amplitudes MB trigger (Pixel, V0) system, √sNN (TeV) pp 7 pp 2.76 Pb-Pb 2.76 year 2010 2011 NMB 180-315M 65 M 17 M Hot and dense QCD at LHC, Santiago, 08.02.12 Andrea Dainese 2

D mesons cross sections: pp 7 TeV, D0, D+, D*, |y|<0.5 JHEP 01 (2012) 128 FONLL: Cacciari et al., private comm. GM-VFNS: Kniehl et al., private comm. 1 < pt < 24 GeV/c, with 5 nb-1 (2010 statistics) pQCD predictions (FONLL and GM-VFNS) compatible with our data Hot and dense QCD at LHC, Santiago, 08.02.12 Andrea Dainese

More charm in pp 7 TeV: Ds and Lc D ratios in agreement with other exp’s Hot and dense QCD at LHC, Santiago, 08.02.12 Andrea Dainese

The Total Charm Cross Section in pp Extrapolation from pt = 2 GeV/c to 0 (about ×2) and full y using FONLL 7 TeV 2.76 TeV Consistent comparison with NLO over 3 orders of magnitude Quark Matter 2011, Annecy, 27.05.11 Andrea Dainese

Heavy flavour decay leptons: pp 7 TeV, e in |y|<0. 8 & m in 2 Heavy flavour decay leptons: pp 7 TeV, e in |y|<0.8 & m in 2.5<y<4 Cocktail of “photonic” backgrounds based on measured p0 cross section Inclusive – Cocktail: electrons from c and b decays Agrees with measured-D decay electron spectrum at low pt arXiv:1201.3791 (acc. by PLB) Measured ds/dpt in 2-12 GeV/c FONLL indicates beauty dominance above 6 GeV/c Hot and dense QCD at LHC, Santiago, 08.02.12 Andrea Dainese

D pt distributions in Pb-Pb Strong suppression observed in central collisions (0-20%) wrt scaled pp reference Significant suppression also in semiperipheral (40-80%) wrt scaled pp reference Hot and dense QCD at LHC, Santiago, 08.02.12 Andrea Dainese

D meson nuclear modification factor RAA in central Pb-Pb collisions Suppression for charm is a factor 3-4 above 5 GeV/c Indicates strong energy loss of c quarks in the hot and dense QCD medium formed in these collisions Hot and dense QCD at LHC, Santiago, 08.02.12 Andrea Dainese

Background-subtracted Electron RAA Inclusive electrons – background sources low pt: large systematic uncertainties (also from pp reference) above 3-4 GeV/c: dominated by charm and beauty decays Suppression in central collisions: factor 1.5-4 Peripheral collisions Central collisions Hot and dense QCD at LHC, Santiago, 08.02.12 Andrea Dainese

Muons at forward rapidity: central-to-peripheral nuclear modification factor 0-10%/40-80% suppression ~2.5 above 6 GeV/c According to FONLL, beauty dominant in this region Hot and dense QCD at LHC, Santiago, 08.02.12 Andrea Dainese

J/ polarization results ALICE Coll., arXiv:1111.1630, accepted by PRL M.Butenschoen, A.Kniehl, arXiv:1201.3862 First result at the LHC: almost no polarization for the J/ First theoretical calculation (NLO NRQCD) compared to data: promising result, reasonable agreement with theory

Results on J/ yield vs multiplicity ALICE Collaboration arXiv:1202.2816 pp multiplicity similar to Cu-Cu collisions at RHIC Linear increase with dNch/d Similar behaviour in two different rapidity ranges Stronger effect at y=0?

J/ in Pb-Pb: results and comparison with RHIC ALICE Collaboration arXiv:1202.1383 ALICE, LHC, forward rapidity PHENIX, RHIC, mid-rapidity PHENIX, RHIC, forward rapidity rapidity: RAA(ALICE) > RAA (PHENIX) Smaller J/ suppression in spite of the factor 13 in s First indication for charm quark (re)combination in heavy-ion collisions