Prof. Dr. habil. Johannes Blümlein

Personalities:

Contact:

Current Fields of Interest:

• Perturbative Higher Order Calculations of Hard Processes
  
• Deeply Inelastic Scattering : QED and QCD Corrections, Heavy Flavor, Small x Physics, Diffraction, Non-forward Scattering
  
• Parton Distributions
  
• Precision Test of the Standard Model
  
• Mathematical Methods and Structures in Higher Order Calculations
  

Earlier Research included:

• Theory of Non-equilibrium Quantum Plasmas Some Publications
  
• Neutrino Physics
  
• Search for Gluinos, Axions and Leptoquarks
  

Publications:

My academic ancestors

Collaborations:

Sonderforschungsbereich Transregio-9
• Computational Particle Physics
  
  RISC J. Kepler University Linz,A:
• RISC Linz: Symbolic Summation
  
  Institut de Mathématiques de Jussieu, Paris,F:
• Mathematics of Feynman Integrals
  
  Helmholtz Allianz Analysis Center
• Physics at the Terascale
  

Recent EU Networks:

EU TMR Network (2011-2014)
• LHCphenoNet
  
  EU TMR Network (2007-2010)
• HEPTOOLS
  
  

Graduate Schools:

• The Standard Model of Particle Physics - Structure, Precision Tests, and Extensions [DESY, FUB, HUB, MPI Grvitationsphysik Golm, TU Dresden], (1996-2005)
  
  
• Mass, Spectrum, Symmetry, [DESY, HUB, TU Dresden], (2009- )
  
  

Teaching at Potsdam University:

Teaching at Dortmund University:

Lectures for Summer-Students at DESY:

Some recent talks:

2012

• "Harmonic Sums and Polylogarithms Generated by Cyclotomic Polynomials" HU Berlin, February, 2012 ".pdf"
  

  2011

• "Harmonic Sums and Polylogarithms Generated by Cyclotomic Polynomials" Aachen, November, 2011 ".pdf"
  
• "Why Precision? " Chennai, India, September, 2011 ".pdf"
  
• "3-Loop Corrections to Heavy Quark Production in DIS", Chennai, India, September, 2011 ".pdf"
  
• "α_s from DIS", St. Andrews, Scotland, August 2011
  
• "3-Loop Corrections to Heavy Quark Production in DIS", St. Andrews, Scotland, August 2011
  
• "Loops and Mathematics", Amsterdam,NL, June 24, 2011, in Honour of M. Veltman's 80th birthday
  
• "Quarks and Gluons at High Precision", Hamburg,D, June 8, 2011.
  
• "3-loop corrections to heavy quark production in DIS", Santiago de Compostella,E, June 3, 2011.
  
• "Quarks and Gluons at High Precision", Dortmund,D, May 3, 2011.
  
• "NNLO Benchmarks for Gauge and Higgs Boson Production at TeV Hadron Colliders", Geneva,CH, April 5, 2011.
  
• "The strong coupling constant from deep-inelastic scattering", Munich, D, February 2011.
  
• "NNLO DIS Heavy Flavor Wilson Coefficients", Valencia, E, February 2011.
  
• "The strong coupling constant in deep-inelastic scattering", Vienna, A, January 2011.
  
• "The direction of physical time", Linz, A, January 2011.
  

  2010

• "NNLO Benchmarks for Gauge and Higgs Boson Production at TeV Hadron Colliders", Hamburg, December 13, 2010.
  
• "Project B3: new perturbative results", Karlsruhe, December, 2010.
  
• "Towards the O(α_s³) contributions to the heavy flavor Wilson coefficients of the structure function F₂ for Q² >> m² at general values of N", Seattle, WA, USA, October 2010.
• "QCD Analysis of the Polarized DIS World Data", Newport News, VA, USA, October 2010.
  
• "The O(α_s³ N_F T_F²) contributions to the heavy flavor Wilson coefficients of F₂(x,Q²) for Q² >> m²", Trento, I, September 2010.
  
• "Project B3", Cologne,Aachen June/July 2010.
  
• "3-Loop Heavy Flavor Corrections to F₂(x,Q²)", Stony Brook, USA, June 2010.
  
• "Finite Harmonic and Other Sums and Iterated Integrals", "Difference Equations in Higher Order Calculations in QFT", Lectures at the International School "Modern Structures in Local Quantum Fields" June 07-25 2010, Les Houches, F.
  
• "New World data Analysis of the DIS World Data", Florence, I: April 2010.
  
• "3-Loop Heavy Flavor Corrections to F₂(x,Q²)", Florence, I: April 2010.
  
• "Parton Distributions in the Continuum: Recent Results [B3]" at High Precision", Berlin, D: 23.03. 2010, [available on request].
  
• "The QCD Coupling and Parton Distributions at High Precision", Conference in Honour of Murray Gell-Manns 80th Birthday, Singapore, SG: 24.02. 2010, [available on request].
  
• "Heavy Flavor Contributions to DIS Structure Functions at O(α_s³)" Freiburg/Br., D: 02.02. 2010, [available on request]
  

  2009

• "Heavy Flavor Contributions to DIS Structure Functions at O(α_s³)" Valencia, E: 10.12. 2009 ".pdf"
  
• "Parton Distributions for the LHC" Vienna, A: November 30th 2009 ".pdf"
  
• "A journey deep inside into nucleons: microscopy of elementary particles", [available on request], RISC, JKU Linz, November 27th 2009
  
• "A journey deep inside into nucleons: microscopy of elementary particles", [available on request], Greifswalder Physikalisches Kolloquium, November 19th 2009
  
• "Analysis Center: the PDF Working Group" Hamburg, D: November 12th 2009 ".pdf"
  
• "Project B3: Achievements and Plans" Karlsruhe, D: November 2rd 2009 ".pdf"
  
• "Heavy Flavor Contributions to DIS Structure Functions at O(α_s³)" Ascona, CH: October 2009 ".pdf"
  
• "Status of Unplarized Parton Distribution Functions" Seattle, WA: 20. 10. 2009 ".pdf"
  
• 2nd Annual HERA Symposium, DESY, Hamburg, July 7th 2009: "Theoretical Perspectives: Deep-Inelastic Scattering" (.pdf)
  
• Higher Twist Workshop, Madison, USA, June 2009: "Large x higher twist contributions to DIS, Polarized twist-2 and twist-3 Integral Relations" (.pdf)
  
• IHES Workshop Theorie des champs priodes et polylogarithmes II , Paris (Bures sur Yvette), France, June 2009: "Recent Results on Finite Harmonic Sums in Quantum Field Theory" (.pdf)
  
• Helmholtz Alliance Meeting, Hamburg, D, May 4th 2009: "High precision parton densities" (.pdf)
  
• DIS09, Madrid, Spain, April 2009: "From Moments to Functions in Higher Order QCD" (.pdf)
  
• HEPTOOLS, Lisboa, Portugal, March 2009 "O(α_s³) Heavy Flavor Wilson Coefficients for Deeply Inelastic Scattering" (.pdf)
  
• Eine Reise tief in das Innere des Protons - Mikroskopie von Elementarteilchen", [available on request] Helmholtz-Gymnasium, Potsdam: 26. 02. 2009
  
• " Mathematical Structures in Higher Order Calculations" (.pdf), HRI Allahabad, India: 18. 02. 2009
  
• "Heavy Flavor Contributions to Deeply Inelastic Scattering" (.pdf), HRI Allahabad, India: 17. 02. 2009
  
• "QCD Evolution of Unpolarized Parton Distributions" (.pdf), HRI Allahabad, India: 16. 02. 2009
  
• From Classical Mechanics to Quantum Field Theory - an Introduction for my Mathematical Friends, 10 Lectures, [available on request], Linz February, 2-6, 2009
  

2008

• Helmholtz Alliance PDF-School 2008, DESY, Nov. 2008: "Heavy Flavor in Deep Inelastic Scattering" (.pdf)
  
• ACAT08, Erice, Sicily, Nov. 2008: "From Moments to Functions in Higher Order QCD" (.pdf)
  
• SFB TR-9 Meeting Aachen, Oct. 2008: "Perturbative QCD Results " (.pdf)
  
• Conference on Motives, QFT, and Pseudodifferential Operators, Boston U., USA, June 12 2008; RISC Linz, July 2008: "Relations Between Nested Harmonic Sums and MZV's" (.pdf)
  
• Loopfest 2008, Buffalo, USA, May 14 2008: "2 and 3-Loop contributions to Heavy Flavor Wilson Coefficients in DIS" (.pdf)
  
• Temple University, Philadelphia, USA, May 12 2008: "Status of unpolarized and polarized Parton Distribution Functions" (.pdf)
  
• LL2008, Sondershausen, D, April 24 2008: "Structural Relations of Harmonic Sums up to w=6" (.pdf)
  
• DIS08, London, UK, April 9 2008: "Future Prospect on Polarized Parton Distributions" (.pdf)
  
• DIS08, London, UK, April 9 2008: "Large x Higher Twist Contributions in DIS" (.pdf)
  

2007

• "Eine Reise tief in das Innere des Protons - Mikroskopie von Elementarteilchen", [available on request] Sonntagsvorlesung Potsdam: 26. 10. 2007
  
• RADCOR07, Florence, Germany October 03 2007: "Heavy Flavor Production in DIS: Two Loop Massive Operator Matrix Elements and Beyond" (.pdf)
  
• DIS07, Munich, Germany April 17 2007: "The Status of Polarized Parton Densities" (.pdf)
  
• DIS07, Munich, Germany April 17 2007: "Two-Loop Massive Operator Matrix Elements and Heavy Flavor Production in Deep-Inelastic Scattering" (.pdf)
  
• DIS07, Munich, Germany April 17 2007: "Λ_QCD and α_s(M_Z²) from DIS Structure Functions" (.pdf)
  
• DIS07, Munich, Germany April 18 2007: "Target Mass Corrections to Diffractive Scattering" (.pdf)
  
• DIS07, Munich, Germany April 18 2007; ACAT07, Amsterdam, April 25 2007: "Structural Relations between Harmonic Sums up to w=6" (.pdf)
  
• KEK, Tsukuba, Japan: Symposium "Towards precision QCD physics" March 10 2007 "QCD Precision Tests In Deeply Inelastic Scattering" (.pdf)
  
• Kyoto University, Kyoto, Japan: Symposium "Achievements and Prospects of Perurbative QCD: in Memory of Jiro Kodaira" March 12 2007 "Small x, Higher Twist, and Non-Forward Scattering: meeting J. Kodaira in QCD" [.pdf]
  
• SFB Transregion 9, Mini-Workshop: "Precision determinations of α_s and the quark masses", RWTH Aachen, February 2007, "Λ_QCD and α_s(M_Z²) from DIS Structure Functions"[.ps.gz]
  

2006

• COLLOQUE POUR LE 60EME ANNIVERSAIRE DE JOEL FELTESSE: Saclay October 2006 "Leptoquarks at HERA"(.pdf)
  
• WHEPP 9, Bhunbaneswar, India, January 2006. "On the Way to QCD Precision Tests with Deep Inelastic Scattering"(.pdf)
  

2005

• RADCOR 2005, Shonan Village, Japan, September 2005: "Heavy quark O(&alpha_s³) Corrections to F_L(x,Q²) at large virtualities" [.pdf]
  
• Dortmund, June, 2005: [available on request] "Irreversibility and the Direction of Physical Time" (.pdf)
  

  before 2005

• Collider Physics, KITP, Santa Barbara, Jan. 2004: "Mathematical Structure of QCD Wilson Coefficients and Anomalous Dimensions" [.pdf]
  
• RADCOR 2000, Carmel, CA, USA, September 2000: "On the Drell-Yan-Levy Relation to O(α_s²)" [.pdf]
  

Some Fortran, FORM, mathematica programs:

1. HECTOR 1.00 - A program for the calculation of QED, QCD and electroweak corrections to ep and lN deep inelastic neutral and charged current scattering
   Authors: A. Arbuzov, D. Bardin, J.Blümlein, P. Christova, L. Kalinovskaya, T. Riemann
   Picture (Caution: 1.9 Mb!)
   click here for the DESY, Zeuthen HECTOR home page

   
   Comput. Phys. Commun. 94 (1996) 128-184, hep-ph/9511434 DESY 95-185
   Source code
   Additional applications are possible with v.1.11; see:
   DESY 96-189 (spin physics)
   DESY 96-213 (tagged photons)
   New beta version of the source code

2. LQPAIR 1.00 - A program to calculate leptoquark pair production in pp, eN, e+e-, gamma gamma collisions
   Authors: J.Blümlein, A. Kryukov and A. Boos
   available on request
   Mod. Phys. Lett. A9: (1994) 3007, hep-ph/9404321 DESY 94-072
   Nucl. Phys. Proc. Suppl. 37B (1994) 181.
   Z. Phys. C76 (1997) 137, hep-ph/9610408. DESY 96-174
   Phys. Lett. B392 (1997) 150, hep-ph/9610506. DESY 96-219
   

3. ANCONT 1.00 - A program to calculate analytic continuations of Mellin transforms up to two loop order
   Author: J.Blümlein

   
   Comput. Phys. Commun. 133 (2000) 76-104, hep-ph/0003100 DESY 98-149
   Source code (file: ancont.f)
   

4. HMELLIN 1.00 - A program to calculate the DIS heavy flavor Wilson coefficients up to NLO in Mellin space
   Authors: S. Alekhin, J.Blümlein
   

   
   Phys. Lett. B594 (2004) 299-307, hep-ph/0404034 DESY 03-204
   

5. DYHIG 1.00 - A program to calculate the Wilson coefficients for the unpolarized and polarized Drell-Yan Process and Higgs boson (H,A) production at NNLO
   Authors: J.Blümlein, V Ravindran
   Source code (file: DYHIG.tar.gz)
   

   
   Nucl.Phys. B716 (2005) 128-172 , hep-ph/0501178 DESY-05-002
   

6. RADIATOR 1.00 - A program to calculate the LO QED corrections to O((alpha L)^5) for unpolarized and unpolarized high energy processes
   Authors: J.Blümlein, H. Kawamura
   

   
   Nucl.Phys. B708 (2005) 467-510 , hep-ph/0400289 DESY 02-016
   Eur.Phys.J. C51 (2007) 317-333 , hep-ph/0701019 DESY 04-064
   Source code (file: HMELLIN.tar.gz)
   

7. momm.frm, momp.frm, momm.m, momp.m - anomalous dimensions and Wilson coefficients up to NNLO in Mellin space : Determining the closed forms of the O(a**3(s)) anomalous dimensions and Wilson coefficients from Mellin moments by means of computer algebra
   Authors: J.Blümlein, M. Kauers, S. Klein and C. Schneider
   

   
   Comput. Phys. Commun. 180: (2009) 2143-2165, [arxiv: 0902.4091], DESY 09-002
   Source code (file: mom.tar.gz)
   

8. grid1.tar.gz : grids and code for the twist-2 polarized NLO parton distributions and structure functions
   Authors: J.Blümlein and H. Böttcher
   

   
   Nucl.Phys. B841 (2010) 205-230 [arxiv: 1005.3113] DESY 09-131
   Source code (file: grid1.tar.gz)