Conveners
Standard Model
- Sven-Olaf Moch (UHH)
- Joany Manjarres Ramos (Technische Universität Dresden)
- Patrick Connor (DESY)
Standard Model
- Sven-Olaf Moch (UHH)
- Joany Manjarres Ramos (Technische Universität Dresden)
- Patrick Connor (DESY)
Standard Model
- Patrick Connor (DESY)
- Sven-Olaf Moch (UHH)
- Joany Manjarres Ramos (Technische Universität Dresden)
Dr
Mathias Butenschön
(Universität Hamburg)
26/11/2019, 11:30
Abstract: "We describe an implementation of a subtraction scheme in the nonrelativistic-QCD treatment of heavy-quarkonium production at next-to-leading-order in the strong-coupling constant, covering S- and P-wave bound states. It is based on the dipole subtraction in the massless version by Catani and Seymour and its extension to massive quarks by Phaf and Weinzierl. Important additions...
Dr
Katarzyna Wichmann
(DESY)
26/11/2019, 11:55
Abstract: The HERA collaborations H1 and ZEUS have performed new PDF fits including their latest jet data. A joint PDF fit of H1 and ZEUS jet and inclusive data is performed in the HERAPDF style at NNLO QCD. Scale uncertainties are reduced significantly with respect to the corresponding fit at NLO. The preliminary result is alpha_S(M_Z)=0.1150 +/-0.0008(exp) +0.0002-0.0005(mode/param) ...
Prof.
Francesco Knechtli
(University of Wuppertal)
26/11/2019, 12:20
Yee Chinn Yap
(Deutsches Elektronen-Synchrotron (DE))
26/11/2019, 14:25
Anna Benecke
(University of Hamburg)
26/11/2019, 14:50
Abstract: Every bunch crossing at the LHC has not only one proton-proton interaction but several. These additional proton-proton interactions are called pileup interactions. With the increasing luminosity of the LHC also the number of pileup interactions per bunch crossing increased in the past years and it will reach up to 140 pileup interaction during high-luminosity LHC operation. Removing...
Daniel Savoiu
(KIT, CERN)
26/11/2019, 15:40
Konstantin Asteriadis
(Institute for Theoretical Particle Physics, Karlsruhe Institute of Technology)
27/11/2019, 11:00
Abstract: Currently important progress is being made in next-to-next-to-leading order (NNLO) QCD calculations. As a result, many processes at hadron colliders have been computed to NNLO QCD precision. Despite these developments, the search for the optimal subtraction scheme that allows us to handle IR and collinear singularities in an efficient and general way is still ongoing. In this talk I...
Mr
Riccardo Nagar
(University of Milan Bicocca)
27/11/2019, 11:25
Abstract: We present a method to discretize and numerically solve the DGLAP evolution equations, using Chebyshev interpolation. This allows for high numerically accuracy with grids of quite a moderate size. We demonstrate the power of this method, implemented in the C++ library ChiliPDF, both for conventional PDFs and for double Parton distributions, which appear in the description of...
Oleg Veretin
(UHH/UR)
27/11/2019, 12:15
Dr
Zhiguo He
(Hamburg University)
27/11/2019, 12:40
Abstract: We study double prompt J/ψ hadroproduction within the nonrelativistic-QCD factorization formalism adopting the parton Reggeization approach to treat initial-state radiation in a gauge invariant and infrared-safe way. We present first predictions for the cross section distributions in the transverse momenta of the subleading J/ψ meson and the J/ψ pair. Already at leading order in α_s,...
