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1.
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The three-loop single-mass heavy flavor corrections to deep-inelastic scattering
/ Ablinger, J. (Linz U., RISC ; OAW, Linz, RICAM) ; Behring, A. (CERN) ; Blümlein, J. (DESY, Zeuthen ; Dortmund U.) ; De Freitas, A. (Linz U., RISC ; DESY, Zeuthen) ; von Manteuffel, A. (Regensburg U.) ; Schneider, C. (Linz U., RISC) ; Schönwald, K. (Zurich U.)
We report on the status of the calculation of the massive Wilson coefficients and operator matrix elements for deep-inelastic scatterung to three-loop order. We discuss both the unpolarized and the polarized case, for which all the single-mass and nearly all two-mass contributions have been calculated [...]
arXiv:2407.02006; CERN-TH-2024-100; ZU-TH 31/24; RISC Report number 24-04; DESY-24-096.-
2024-09-17 - 12 p.
- Published in : PoS LL2024 (2024) 047
Fulltext: document - PDF; 2407.02006 - PDF;
In : 17th Loops and Legs in Quantum Field Theory (LL 2024), Wittenberg, Germany, 14 - 19 Apr 2024, pp.047
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2.
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The non-first-order-factorizable contributions to the three-loop single-mass operator matrix elements <math altimg="si1.svg"><msubsup><mrow><mi>A</mi></mrow><mrow><mi>Q</mi><mi>g</mi></mrow><mrow><mo stretchy="false">(</mo><mn>3</mn><mo stretchy="false">)</mo></mrow></msubsup></math> and <math altimg="si2.svg"><mi mathvariant="normal">Δ</mi><msubsup><mrow><mi>A</mi></mrow><mrow><mi>Q</mi><mi>g</mi></mrow><mrow><mo stretchy="false">(</mo><mn>3</mn><mo stretchy="false">)</mo></mrow></msubsup></math>
/ Ablinger, J. (Linz U. ; Linz U., RISC ; OAW, Linz, RICAM) ; Behring, A. (CERN) ; Blümlein, J. (DESY, Zeuthen ; Dortmund U.) ; De Freitas, A. (Linz U. ; Linz U., RISC ; DESY, Zeuthen) ; von Manteuffel, A. (Regensburg U.) ; Schneider, C. (Linz U. ; Linz U., RISC) ; Schönwald, K. (Zurich U.)
The non-first-order-factorizable contributions (The terms 'first-order-factorizable contributions' and 'non-first-order-factorizable contributions' have been introduced and discussed in Refs. \cite{Behring:2023rlq,Ablinger:2023ahe}. [...]
arXiv:2403.00513; ZU-TH-13/24; DO-TH-23/15; RISC Report series 24-02; CERN-TH-2024-30; DESY-24-027.-
2024-05-13 - 8 p.
Fulltext: 2403.00513 - PDF; Publication - PDF;
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3.
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The first-order factorizable contributions to the three-loop massive operator matrix elements $A_{Qg}^{(3)}$ and $\Delta A_{Qg}^{(3)}$
/ Ablinger, J. (Linz U. ; OAW, Linz, RICAM) ; Behring, A. (CERN ; DESY, Zeuthen) ; Blümlein, J. (DESY, Zeuthen) ; De Freitas, A. (Linz U. ; DESY, Zeuthen) ; von Manteuffel, A. (Regensburg U. ; Michigan State U.) ; Schneider, C. (Linz U.) ; Schönwald, K. (Zurich U.)
The unpolarized and polarized massive operator matrix elements $A_{Qg}^{(3)}$ and $\Delta A_{Qg}^{(3)}$ contain first-order factorizable and non-first-order factorizable contributions in the determining difference or differential equations of their master integrals. We compute their first-order factorizable contributions in the single heavy mass case for all contributing Feynman diagrams. [...]
arXiv:2311.00644; DO-TH 23/12; DESY 23-142; CERN-TH-2023-164; MSUHEP-23-025; RISC Report series 23-12; ZU-TH 60/23.-
2024-01-10 - 42 p.
- Published in : Nucl. Phys. B 999 (2024) 116427
Fulltext: 2311.00644 - PDF; Publication - PDF;
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4.
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Recent 3-Loop Heavy Flavor Corrections to Deep-Inelastic Scattering
/ Blümlein, Johannes (DESY, Zeuthen) ; Behring, Arnd (DESY, Zeuthen ; CERN) ; Goedicke, Alexander (DESY, Zeuthen ; Linz U.) ; von Manteuffel, Andreas (Regensburg U. ; Michigan State U.) ; Schneider, Carsten (Linz U.) ; Schönwald, Kay (DESY, Zeuthen ; Zurich U.) ; Ablinger, Jakob (Linz U.) ; De Freitas, Abilio (DESY, Zeuthen ; Linz U.)
We report on recent progress in calculating the three loop QCD corrections of the heavy flavor contributions in deep--inelastic scattering and the massive operator matrix elements of the variable flavor number scheme. Notably we deal with the operator matrix elements $A_{gg,Q}^{(3)}$ and $A_{Qg}^{(3)}$ and technical steps to their calculation. [...]
arXiv:2306.16550; DESY-23-089; DO-TH 23/09; CERN-TH-2023-122; ZU-TH 29/23; RISC Report
Series 23-09; MSUHEP-23-018.-
2023-08-21 - 7 p.
- Published in : PoS: RADCOR2023 (2024) , pp. 046
Fulltext: document - PDF; 2306.16550 - PDF;
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5.
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The inverse Mellin transform via analytic continuation
/ Behring, A. (CERN) ; Blümlein, J. (DESY) ; Schönwald, K. (Zurich U.)
We present a method to calculate the $x$--space expressions of massless or massive operator matrix elements in QCD and QED containing local composite operator insertions, depending on the discrete Mellin index $N$, directly, without computing the Mellin--space expressions in explicit form analytically. Here $N$ belongs either to the even or odd positive integers. [...]
arXiv:2303.05943; DESY 20-053; DESY 20--053; DO-TH 23/01; CERN-TH-2023-020; ZU-TH 13/23; ZU--TH 13/23 13/23.-
2023-06-12 - 43 p.
- Published in : JHEP 2306 (2023) 062
Fulltext: document - PDF; 2303.05943 - PDF;
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6.
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The unpolarized and polarized single-mass three-loop heavy flavor operator matrix elements A$_{gg,Q}$ and ∆A$_{gg,Q}$
/ Ablinger, J. (Linz U., RISC) ; Behring, A. (DESY, Zeuthen ; CERN) ; Blümlein, J. (DESY, Zeuthen) ; De Freitas, A. (Linz U., RISC ; DESY, Zeuthen) ; Goedicke, A. (DESY, Zeuthen) ; von Manteuffel, A. (Michigan State U.) ; Schneider, C. (Linz U., RISC) ; Schönwald, K. (DESY, Zeuthen ; Zurich U.)
We calculate the gluonic massive operator matrix elements in the unpolarized and polarized cases, $A_{gg,Q}(x,\mu^2)$ and $\Delta A_{gg,Q}(x,\mu^2)$, at three-loop order for a single mass. These quantities contribute to the matching of the gluon distribution in the variable flavor number scheme. [...]
arXiv:2211.05462; DESY 15-112; DO-TH 22/26; CERN-TH-2022-179; ZU-TH 53/22; RISC Report
Series 22-25; MSUHEP-22-036.-
2022-12-22
- Published in : JHEP 2212 (2022) 134
Fulltext: 2211.05462 - PDF; document - PDF;
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7.
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The SAGEX review on scattering amplitudes
/ Travaglini, Gabriele (Queen Mary, U. of London) ; Brandhuber, Andreas (Queen Mary, U. of London) ; Dorey, Patrick (Durham U.) ; McLoughlin, Tristan (Trinity Coll., Dublin ; Humboldt U., Berlin) ; Abreu, Samuel (CERN ; Edinburgh U., Inst. Astron.) ; Bern, Zvi (UCLA) ; Bjerrum-Bohr, N. Emil J. (Bohr Inst.) ; Blümlein, Johannes (DESY, Zeuthen) ; Britto, Ruth (Trinity Coll., Dublin) ; Carrasco, John Joseph M. (Northwestern U. ; IPhT, Saclay) et al.
This is an introduction to, and invitation to read, a series of review articles on scattering amplitudes in gauge theory, gravity, and superstring theory. Our aim is to provide an overview of the field, from basic aspects to a selection of current (2022) research and developments..
arXiv:2203.13011; SAGEX-22-01.-
2022-11-30 - 15 p.
- Published in : J. Phys. A 55 (2022) 443001
Fulltext: document - PDF; 2203.13011 - PDF;
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8.
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The Large Hadron-Electron Collider at the HL-LHC
/ FCC-he Study Group Collaboration
The Large Hadron electron Collider, LHeC, is the means to move deep inelastic physics following HERA to the energy frontier of particle physics as it is being exploited by the HL-LHC. The paper presents a thorough update of the initial LHeC Conceptual Design Report (CDR) published in 2012. [...]
arXiv:2007.14491; CERN-ACC-Note-2020-0002; JLAB-ACP-20-3180.-
Geneva : CERN, 2021-12-20 - 364 p.
- Published in : J. Phys. G 48 (2021) 110501
Fulltext: arXiv:2007.14491 - PDF; 2007.14491 - PDF; Fulltext from Publisher: PDF; Preprint: PDF; External link: JLab Document Server
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9.
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$\alpha_s$(2019): Precision measurements of the QCD coupling
/ d'Enterria, David (CERN) ; Kluth, Stefan (Munich, Max Planck Inst.) ; Alekhin, S. (Hamburg U.) ; Baikov, P.A. (Lomonosov Moscow State U.) ; Banfi, A. (Sussex U.) ; Barreiro, F. (Madrid, Autonoma U.) ; Bazavov, A. (Michigan State U., East Lansing (main)) ; Bethke, S. ; Blümlein, J. (DESY, Zeuthen) ; Boito, D. (Sao Paulo U.) et al.
This document collects a written summary of all contributions presented at the workshop "$\alpha_s$(2019): Precision measurements of the strong coupling" held at ECT* (Trento) in Feb. 11--15, 2019. [...]
arXiv:1907.01435.-
SISSA, 2019-07-09 - 154 p.
- Published in : PoS: ALPHAS2019 (2019) , pp. 001
Fulltext: PDF;
In : Workshop on precision measurements of the QCD coupling constant (alphas-2019), Trento, Italy, 11 - 15 Feb 2019, pp.001
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10.
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TESLA: The Superconducting electron positron linear collider with an integrated X-ray laser laboratory. Technical design report. Part 6. Appendices. Chapter 1. Photon collider at TESLA
/ Badelek, B. (Warsaw U.) ; Blochinger, C. (Wurzburg U.) ; Blumlein, J. (DESY ; DESY, Zeuthen) ; Boos, E. (Moscow State U.) ; Brinkmann, R. (DESY ; DESY, Zeuthen) ; Burkhardt, H. (CERN) ; Bussey, P. (Glasgow U.) ; Carimalo, C. (Orsay) ; Chyla, J. (Prague, Inst. Phys.) ; Ciftci, A.K. (Ankara U.) et al.
/ECFA/DESY Photon Collider Working Group
TESLA Technical Design Report, Part VI, Chapter 1: The Photon Collider at TESLA
hep-ex/0108012; SLAC-REPRINT-2001-042; DESY-01-011; DESY-01-011FA; ECFA-2001-209; DESY-TESLA-FEL-2001-05; DESY-TESLA-FEL-2001-23.-
2004 - 102 p.
- Published in : Int. J. Mod. Phys. A 19 (2004) 5097-5186
Fulltext: PDF; External link: Electronic Version from a server
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