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CERN Document Server 2,020 elementer funnet  1 - 10nesteslutt  gå til element: Søket tok 3.67 sekunder. 
1.
(100)
Two-loop massless QCD corrections to the $g+g \rightarrow H+H$ four-point amplitude / Banerjee, Pulak (HBNI, Mumbai) ; Borowka, Sophia (CERN) ; Dhani, Prasanna K. (HBNI, Mumbai) ; Gehrmann, Thomas (Zurich U.) ; Ravindran, V. (HBNI, Mumbai)
We compute the two-loop massless QCD corrections to the four-point amplitude $g+g \rightarrow H+H$ resulting from effective operator insertions that describe the interaction of a Higgs boson with gluons in the infinite top quark mass limit. This amplitude is an essential ingredient to the third-order QCD corrections to Higgs boson pair production. [...]
arXiv:1809.05388; CERN-TH-2018-196; IMSc/2018/09/06; ZU-TH 32/18.- 2018-11-21 - 17 p. - Published in : JHEP 11 (2018) 130 Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF;
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2.
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Second order QCD corrections to the g+g → H +H four-point amplitude / Banerjee, Pulak ; Borowka, Sophia ; Dhani, Prasanna ; Gehrmann, Thomas ; Ravindran, Vajravelu
In this contribution we compute the two loop massless QCD corrections to the four-point ampli- tude g + g → H + H . We work in the effective theory where the Higgs boson interact with gluons in the infinite top quark mass limit. [...]
CERN-TH-2020-194.- Geneva : CERN, 2019 - 10. - Published in : PoS RADCOR2019 (2019) 011 Fulltext: PDF;
In : 14th International Symposium on Radiative Corrections : Application of Quantum Field Theory to Phenomenology, Avignon, France, 8 - 13 Sep 2019, pp.011
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3.
(42)
Systematic approximation of multi-scale Feynman integrals / Borowka, Sophia (CERN) ; Gehrmann, Thomas (Zurich U.) ; Hulme, Daniel (Zurich U.)
An algorithm for the systematic analytical approximation of multi-scale Feynman integrals is presented. The algorithm produces algebraic expressions as functions of the kinematical parameters and mass scales appearing in the Feynman integrals, allowing for fast numerical evaluation. [...]
arXiv:1804.06824; CERN-TH-2018-078; ZU-TH 14/18; ZU-TH-14-18.- 2018-08-20 - 34 p. - Published in : JHEP 08 (2018) 111 Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: arXiv:1804.06824 - PDF; 1804.06824 - PDF;
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4.
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Threshold resummation in rapidity for colorless particle production at LHC / Banerjee, Pulak (IMSc, Chennai ; HBNI, Mumbai) ; Das, Goutam (DESY) ; Dhani, Prasanna K. (HBNI, Mumbai ; IMSc, Chennai) ; Ravindran, V. (HBNI, Mumbai ; IMSc, Chennai)
We present a formalism to resum large threshold logarithms to all orders in perturbative QCD for the rapidity distribution of any colorless particle at the hadron colliders. Using the derived resummed coefficients in two dimensional Mellin space, we present the rapidity distributions for the Higgs as well as for the Drell-Yan production to NNLO+NNLL accuracy at the LHC. [...]
arXiv:1807.04583; DESY 18-115; DESY-18-115.- SISSA, 2018-07-29 - 9 p. - Published in : PoS LL2018 (2018) 043 Fulltext: PoS(LL2018)043 - PDF; 1807.04583 - PDF; External link: PoS server
In : 14th DESY Workshop on Elementary Particle Physics : Loops and Legs in Quantum Field Theory 2018, St Goar, Germany, 29 Apr - 04 May 2018, pp.043
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5.
(32)
Factorization of a two-loop four-point superstring amplitude / Yasuda, O
CALT-68-1471. - 1987. - 10 p.
CERN library copies
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6.
(21)
Two-Loop Scattering Amplitudes from the Riemann Sphere / Geyer, Yvonne (Oxford U., Inst. Math.) ; Mason, Lionel (Oxford U., Inst. Math.) ; Monteiro, Ricardo (CERN) ; Tourkine, Piotr (Cambridge U., DAMTP)
The scattering equations give striking formulae for massless scattering amplitudes at tree level and, as shown recently, at one loop. The progress at loop level was based on ambitwistor string theory, which naturally yields the scattering equations. [...]
arXiv:1607.08887; CERN-TH-2016-172; DAMTP-2016-54; CERN-TH-2016-172; DAMTP-2016-54.- 2016-12-30 - 10 p. - Published in : Phys. Rev. D 94 (2016) 125029 Fulltext: 10.1103_PhysRevD.94.125029 - PDF; arXiv:1607.08887 - PDF; External link: Preprint
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7.
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Progress on two-loop non-propagator integrals / Gehrmann, T. (CERN ; Karlsruhe U.) ; Remiddi, E. (Bologna U. ; INFN, Bologna)
At variance with fully inclusive quantities, which have been computed already at the two- or three-loop level, most exclusive observables are still known only at one loop, as further progress was hampered up to very recently by the greater computational problems encountered in the study of multi-leg amplitudes beyond one loop. We discuss the progress made lately in the evaluation of two-loop multi-leg integrals, with particular emphasis on two-loop four-point functions..
hep-ph/0101147; TTP-01-04; TTP-2001-04.- Karlsruhe : Karlsruhe Fridericiana Univ., 2000 - 9 p. Access to fulltext document: PDF; Fulltext: PDF; External link: Proceedings write-up on eConf
In : 5th International Symposium on Radiative Correction, Santa Cruz, CA, USA, 11 - 16 Sep 2000, pp.e-proc
5th International Symposium on Radiative Correction, Santa Cruz, CA, USA, 11 - 16 Sep 2000
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8.
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Transport coefficients for multi-component gas of hadrons using Chapman Enskog method / Dash, Ashutosh (NISER, Jatni ; HBNI, Mumbai) ; Samanta, Subhasis (NISER, Jatni ; HBNI, Mumbai) ; Mohanty, Bedangadas (NISER, Jatni ; HBNI, Mumbai ; CERN)
The transport coefficients of a multi-component hadronic gas at zero and non-zero baryon chemical potential are calculated using the Chapman-Enskog method. The calculations are done within the framework of an $S$-matrix based interacting hadron resonance gas model. [...]
arXiv:1905.07130.- 2019-07-24 - 15 p. - Published in : Phys. Rev. D 100 (2019) 014025 Fulltext: PDF; Fulltext from Publisher: PDF;
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9.
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$ZH$ production in gluon fusion: two-loop amplitudes with full top quark mass dependence / Chen, Long (Munich, Max Planck Inst. ; Aachen, Tech. Hochsch.) ; Heinrich, Gudrun (KIT, Karlsruhe, TP) ; Jones, Stephen P. (CERN ; Durham U., IPPP) ; Kerner, Matthias (Zurich U.) ; Klappert, Jonas (RWTH Aachen U.) ; Schlenk, Johannes (PSI, Villigen)
We present results for the two-loop helicity amplitudes entering the NLO QCD corrections to the production of a Higgs boson in association with a $Z$-boson in gluon fusion. The two-loop integrals, involving massive top quarks, are calculated numerically. [...]
arXiv:2011.12325; ZU-TH 45/20; CERN-TH-2020-199; IPPP/20/57; P3H-20-076, KA-TP-21-2020; P3H-20-076, KA-TP-21-2020; TTK-20-42; PSI-PR-20-21; PSI-PR-20-21 P3H-20-076\\ KA-TP-21-2020\\ TTK-20-42\\ PSI-PR-20-21.- 2021-03-11 - 26 p. - Published in : JHEP 2103 (2021) 125 Article from SCOAP3: PDF; Fulltext: PDF;
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Higgs boson production at the LHC using the $q_T$ subtraction formalism at N$^3$LO QCD / Cieri, Leandro (INFN, Milan Bicocca ; Zurich U.) ; Chen, Xuan (Zurich U.) ; Gehrmann, Thomas (Zurich U.) ; Glover, E.W. N. (Durham U., IPPP) ; Huss, Alexander (CERN)
We consider higher-order QCD corrections to Higgs boson production through gluon-gluon fusion in the large top quark mass limit in hadron collisions. We extend the transverse-momentum ($q_T$) subtraction method to next-to-next-to-next-to-leading order (N$^3$LO) and combine it with the NNLO Higgs-plus-jet calculation to numerically compute differential infrared-safe observables at N$^3$LO for Higgs boson production in gluon fusion. [...]
arXiv:1807.11501; ZU-TH 27/18; IPPP/18/67; CERN-TH-2018-167.- 2019-02-14 - 29 p. - Published in : JHEP 02 (2019) 096 Article from SCOAP3: PDF; Fulltext: PDF;
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