Yan-Qing Ma ( 马滟青 ) Peking University The Second Sino-Americas Workshop and School on the Bound-State Problem in Continuum QCD, Central China Normal University,

Slides:

Advertisements

Similar presentations

Luca Stanco - Padova Heavy Quarkonium, Fermilab 1 Charmonium Production at HERA Luca Stanco – INFN Padova Outline: Introduction J/  Production Mechanisms.

Advertisements

Quarkonia: theoretical overview Marzia Nardi INFN Torino III Convegno Nazionale sulla Fisica di ALICE Frascati, Novembre 2007.

June 20, Back-to-Back Correlations in p+p, p+A and A+A Reactions 2005 Annual AGS-RHIC User's Meeting June 20, BNL, Upton, NY Ivan Vitev, LANL Ivan.

Iain Stewart MIT Iain Stewart MIT Nonleptonic Decays and the Soft Collinear Effective Theory Super B Factory Workshop, Hawaii, 2004.

Resummation of Large Logs in DIS at x->1 Xiangdong Ji University of Maryland SCET workshop, University of Arizona, March 2-4, 2006.

Cold nuclear matter effects on dilepton and photon production Zhong-Bo Kang Los Alamos National Laboratory Thermal Radiation Workshop RBRC, Brookhaven.

QCD Resummations for Hadronic Collisions Werner Vogelsang RBRC and BNL Nuclear Theory RHIC/AGS Users’ Meeting 2005.

Method of Regions and Its Applications The Interdisciplinary Center for Theoretical Study, USTC 1 Graduate University of the CAS Deshan Yang.

9/17/20151 Probing the Dense Medium in Cold Nuclei -- Gluon Saturation at small-x Bowen Xiao (CCNU) Feng Yuan (LBNL)

9/19/20151 Semi-inclusive DIS: factorization Feng Yuan Lawrence Berkeley National Laboratory RBRC, Brookhaven National Laboratory.

Zhongbo Kang Los Alamos National Laboratory Transverse single spin asymmetry of the W production at RHIC RHIC-AGS Annual Users’ Meeting 2015 June 9-12,

As one evolves the gluon density, the density of gluons becomes large: Gluons are described by a stochastic ensemble of classical fields, and JKMMW argue.

SSAs at small x and the the anomalous magnetic moment Jian Zhou Regensburg University Based on: Phys.Rev. D89 (2014) ZJ arXiV: A. Schafer.

J/ψ Production in pPb Collisions at the LHC Zhang, Hong-Fei Third Military Medical University.

Breakdown of NRQCD Factorization ?? J. P. Ma Institute of Theoretical Physics, Beijing 北京 May Taipei Summer Institute on Strings, Particles.

6/1/20161 TMD Evolution Feng Yuan Lawrence Berkeley National Laboratory.

Cronin Effect and High-p T Suppression in pA Collisions Yuri Kovchegov University of Washington Based on work done in collaboration with Based on work.

May 18-20, 2005 SIR05 JLab 1 P ? Dependence of SSA -- from nonpert. to pert. Feng Yuan, RBRC, Brookhaven National Laboratory References: Ji, Ma, Yuan,

Zhongbo Kang Los Alamos National Laboratory QCD structure of the nucleon and spin physics Lecture 5 & 6: TMD factorization and phenomenology HUGS 2015,

1 Cross Sections and Spin Asymmetries in Hadronic Collisions Jianwei Qiu Brookhaven National Laboratory KEK theory center workshop on high-energy hadron.

Forward photon measurement and generic detector R&D Y. Kwon Yonsei Univ.

11/28/20151 QCD resummation in Higgs Boson Plus Jet Production Feng Yuan Lawrence Berkeley National Laboratory Ref: Peng Sun, C.-P. Yuan, Feng Yuan, PRL.

The quest for the holy Grail: from Glasma to Plasma Raju Venugopalan CATHIE-TECHQM workshop, Dec , 2009 Color Glass Condensates Initial Singularity.

Forward particle production in d+Au collisions in the CGC framework Cyrille Marquet Institut de Physique Théorique, CEA/Saclay.

Status of the theory of saturation of partonic densities Cyrille Marquet Theory Division - CERN.

June 25, 2004 Jianwei Qiu, ISU 1 Introduction to Heavy Quark Production Jianwei Qiu Iowa State University CTEQ Summer School on QCD Analysis and Phenomenology.

Inclusive four charm hadron production at Belle June 16-20, 2005 International Conference on QCD and Hadronic Physics, Beijing JUNGIL LEE.

Threshold Resummation for Top- Quark Pair Production at ILC J.P. Ma ITP, CAS, Beijing 2005 年直线对撞机国际研讨会, Tsinghua Univ.

Resummation of Large Endpoint Corrections to Color-Octet J/  Photoproduction Adam Leibovich University of Pittsburgh 10/17/07 With Sean Fleming and Thomas.

Double charm production in e + e - -annihilation Anatoly Likhoded, IHEP, Protvino The conflict between Theory and Experiment in double charmonium production.

2/10/20161 What can we learn with Drell-Yan in p(d)-nucleus collisions Feng Yuan Lawrence Berkeley National Laboratory RBRC, Brookhaven National Laboratory.

Contents Introduction NLO Calculations Numerical Results Summary.

STAR azimuthal correlations of forward di-pions in d+Au collisions in the Color Glass Condensate Cyrille Marquet Institut de Physique Théorique, CEA/Saclay.

Exclusive charmonium production in hard exclusive processes. V.V. Braguta Institute for High Energy Physics Protvino, Russia.

Inclusive Charm Production in Bottomonium Decays Yu, Chaehyun (Korea University) In collaboration with Hee Sok Chung, Daekyoung Kang, Taewon Kim, and Jungile.

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.

Distribution of linearly polarized gluons inside a large nucleus Jian Zhou Regensburg University Based on: Phys.Rev. D84 (2011) A. Metz and ZJ.

Small-x Theory Overview Yuri Kovchegov The Ohio State University Columbus, OH.

Applications of the light-cone distribution amplitudes for quakonia 南昌大学第八届全国高能物理大会 1 Based on Yu Jia & DSY, NPB814, 217 (2009); in preparation.

Azimuthal correlations of forward di-hadrons in d+Au collisions at RHIC Cyrille Marquet Theory Division - CERN Based on :C.M., Nucl. Phys. A796 (2007)

Low-x Meeting – Ischia Island, Italy – September Diffractive quarkonium production in association with a photon at the LHC* Maria Beatriz.

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.

Running Coupling Corrections to Nonlinear Evolution for Diffractive Dissociation Yuri Kovchegov The Ohio State University.

Exclusive charmonium production within Light Cone Formalism. V.V. Braguta Institute for High Energy Physics Protvino, Russia.

Measurements of Heavy Quarkonium Production and Polarization at CMS Linlin ZHANG （张琳琳） and Sijin QIAN （钱思进） Peking University 中国物理学会高能物理分会 2014 学术年会武汉，湖北，

Heavy quarks and charmonium at RHIC and LHC within a partonic transport model Jan Uphoff with O. Fochler, Z. Xu and C. Greiner XLIX International Winter.

Quark Pair Production in the Color Glass Condensate Raju Venugopalan Brookhaven National Laboratory AGS users-Quarkonium workshop, June 6th, 2006.

Quark Pair Production in the Color Glass Condensate Raju Venugopalan Brookhaven National Laboratory RBRC Heavy Flavor Workshop, Dec. 12th-14th, 2005.

Refactorizing NRQCD short-distance coefficients in exclusive quarkonium production KITPC-EFT in Nuclear Physics & Particle Physics 1 Based on.

11/19/20161 Transverse Momentum Dependent Factorization Feng Yuan Lawrence Berkeley National Laboratory RBRC, Brookhaven National Laboratory.

RBRC & BNL Nuclear Theory

Introduction to pQCD and TMD physics

Centre de Physique Théorique

Recent study on γγ*  ηc transition form factor and χcJ  γγ

Computing gluon TMDs at small-x in the Color Glass Condensate

Forward correlations and the ridge - theory

Semi-inclusive DIS at Small-x

Color Glass Condensate : Theory and Phenomenology

JSA/HUGS Fellowship Seminar-2016

Forward particle production in the presence of saturation

RBRC and BNL Nuclear Theory

Computing gluon TMDs at small-x in the Color Glass Condensate

Feng Yuan Lawrence Berkeley National Laboratory

Electron ion collisions and the Color Glass Condensate

New d+Au RHIC data show evidence for parton saturation

A prediction of unintegrated parton distribution

The energy dependence of saturation scale at next-to-leading order

Productions and Decays of Charmonium Application of perturbative QCD

Introduction to pQCD and TMD physics Lecture 2: perturbative QCD (II)

张汉中 Institute of Particle Physics, Central China Normal University,

Presentation transcript:

Yan-Qing Ma ( 马滟青 ) Peking University The Second Sino-Americas Workshop and School on the Bound-State Problem in Continuum QCD, Central China Normal University, Wuhan, Nov. 16 th, 2015

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34 Hadronization  Observed by detector:  Why hadronization? How hadronization? Study hadron production!  Produced at initial: Partons (guess) Hadrons  Hadronization in QCD

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34 Heavy quarkonium The simplest system: two body problem “Hydrogen atom in QCD”, “an ideal laboratory in QCD”  Production: best way to study hadronization

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34 Property  Multiple well-separated scales : Quark mass: M Momentum:Mv Energy:Mv 2  Involving both perturbative and nonperturbative physics

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34 Factorization and hadronization models  Short-distance and long distance parts  Approximation: on-shell pair + hadronization

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34 Historical review of quarkonium production Einhorn, Ellis (1975), Chang (1980), Berger, Jone (1981), … Fritzsch (1977), Halzen (1977), … Bodwin, Braaten, Lepage, , … Kang, Qiu, Sterman, Fleming, Leibovich, Mehen, Rothstein Kang, YQM, Qiu, Sterman, , … Kang, YQM, Venugopalan, Qiu, Sun, Xiao, Yuan, , … Bodwin, Braaten, Lee,

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34 Outline I. Success and failure of NRQCD framework

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34 NRQCD Factorization  Factorization formula Bodwin, Braaten, Lepage, Hadronization (LDMEs) Long distance (~1/(m c v)) input. Parton distribution function Long distance (~1/ Λ QCD ) Production of heavy quark pair Short distance (~1/m c ) perturbative calculable.

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34 YQM, Wang, Chao,

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34 ATLAS,  Comparison with new data Perfect agreement!

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34  LO NRQCD: polarization puzzle CDF,

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34  NRQCD: Butenschöen, Kniehl, Chao,YQM,Shao,Wang,Zhang, Gong,Wan,Wang,Zhang, Results depend on the extracted CO LDMEs

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34 Problems with NLO NRQCD Perturbation convergent? Need how many orders? See Yu Jia’s talk for NNLO calculation

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34 NRQCD: summary  Most puzzles can be understood qualitatively at NLO  No all order proof of NRQCD factorization Other methods are needed for these extreme regions Factorization correct at least up to NNLO Nayak, Qiu, Sterman,

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34 Outline I. Success and failure of NRQCD framework

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34  Leading power: collinear factorization, single parton fragmentation Collins, Soper (1982) Braaten, Yuan, Nayak, Qiu, Sterman,  NLP: important for heavy quarkonium produciton Kang, Qiu, Sterman, Kang, YQM, Qiu, Sterman, Kang, YQM, Qiu, Sterman,  A rigorous collinear factorization method up to NLP

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34 2 Collinear factorization approach  Ideas:  Factorization correct to all order Qiu, Sterman (1991) Kang, YQM, Qiu, Sterman,

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34 Factorization  Factorization formalism:

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34 Evolution Kang, YQM, Qiu, Sterman,  Evolution equations at NLP:  Independence of the factorization scale:

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34 Predictive power  Calculation of short-distance hard parts in pQCD:  Calculation of evolution kernels in pQCD: Kang, YQM, Qiu, Sterman, Kang, YQM, Qiu, Sterman,

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34 Input fragmentation function YQM, Zhang, Qiu, YQM, Zhang, Qiu, YQM, Zhang, Qiu, NLO is now available for all channels Complicated: different quarkonium states require different input distributions! Apply NRQCD to the input distributions at initial scale

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34 Reproducing plain NRQCD YQM, Qiu, Sterman, Zhang,  LO LP+NLP comparing with NLO NRQCD  LO analytical results reproduce NLO NRQCD calculations (numerical) !

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34  The collinear factorization framework is ready to use, potentially better convergence  Calculating hard parts to NLO Before resummation, potentially can reproduce NNLO NRQCD  Global analysis, based on collinear factorization formalism including NLP and evolution A lot of works to be done!  Solving the double parton evolution equations

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34 Outline I. Success and failure of NRQCD framework

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34 Berger, Qiu, Wang, Sun, Yuan, Yuan,  Sudakov double logarithm Feng, Lansberg, Wang,  Small-x effect can be important

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34 CGC effective field theory  Color Glass Condensate McLerran, Venugopalan,

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34 CGC+CEM Fujii, Gelis, Venugopalan, Fujii, Watanabe, Ducloue, Lappi, Mantysaari, Watanabe, Xiao,  But  CEM: A simply and intuitive model

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34 CGC+NRQCD Kang, YQM, Venugopalan, Qiu, Sun, Xiao, Yuan,  NRQCD factorization:  Via many channels, both CS and CO

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34 Dilute-dense formula at LO  Short distance for CO channels in CGC  Short distance for CS channels in CGC Kang, YQM, Venugopalan,  Scope of application:  High energy p+A or p+p collision  Quarkonium produced in forward rapidity region

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34 YQM, Venugopalan,  RHIC data at central rapidity: agreement is not very good  As expected: CGC+NRQCD good for high energy and forward rapidity

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34 YQM, Venugopalan, Zhang,

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34  Apply for other quarkonium states is possible  NLO calculation in CGC+NRQCD framework is important and urgent!! Plenty of data at LHC  NRQCD+CGC: the most rigorous method Sudakov resummation in CEM+CGC ： How to resum in NRQCD+CGC? Watanabe, Xiao, Thank you!

Back up

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34 Bodwin, Chung, Kim, Lee, Faccioli,Knunz,Lourenco,Seixas,Wohri, agreed by new studies

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34 CGC+CEM Fujii, Gelis, Venugopalan, Fujii, Watanabe, Ducloue, Lappi, Mantysaari, Watanabe, Xiao,  CEM:

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34 CGC+CEM: p+p Fujii, Watanabe, Bad agreement:

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34 CGC+CEM: p+A Fujii, Watanabe, Bad agreement:

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34 ALICE, Fujii, Watanabe,  RHIC:  LHC:  Disagree with data  Rule out the CGC method???

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34 CGC+CEM: improved (1) Ducloue, Lappi, Mantysaari,  Using the collinear “hybrid” frame work  Introduce impact-parameter-dependent initial condition  Marginally describe data

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34 CGC+CEM: improved (2) Watanabe, Xiao,

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34 Comparison with other methods  Quasi-classical approximation  Our CS channel reproduce the work: Dominguez, Kharzeev, Levin, Mueller, Tuchin,  Only dipoles are involved in CEM calculation. No quadrupole. Kang, YQM, Venugopalan,

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34 Parameters for p+p YQM, Venugopalan,  An approximation for quadrupole  Self-consistent: exact when any two adjacent positions coincide  Checked: a good approximation to the quadrupole  Dipole distributions: Albacete, Dumitru, Fujii, Nara,  NRQCD CO matrix elements Chao,YQM,Shao,Wang,Zhang,

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34  Good agreement with data Worst agreement with RHIC data at central rapidity

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34  Good agreement with data Worst agreement with RHIC data at central rapidity

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34 Parameters for p+A YQM, Venugopalan, Zhang, Dusling, Gelis, Lappi, Venugopalan,

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34  Good agreement with data Worst agreement with RHIC data at central rapidity

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34  Many uncertainties can be cancelled in the ratio

Yan-Qing Ma, Peking University CCNU, Nov. 16 th, /34  Agreement with data