Zobrazeno 1 - 10
of 212
pro vyhledávání: '"Webber, Bryan"'
Autor:
Frixione, Stefano, Webber, Bryan R.
Monte Carlo event generators for hard hadronic collisions depend on the evolution of parton showers backwards from a high-scale subprocess to the hadronization scale. The evolution is treated as a branching process with a sequence of resolvable parto
Externí odkaz:
http://arxiv.org/abs/2309.15587
Autor:
Pittau, Roberto, Webber, Bryan
Publikováno v:
Eur.Phys.J.C 82 (2022) 1, 55
We propose a method for computing numerically integrals defined via $i \epsilon$ deformations acting on single-pole singularities. We achieve this without an explicit analytic contour deformation. Our solution is then used to produce precise Monte Ca
Externí odkaz:
http://arxiv.org/abs/2110.12885
Autor:
Frixione, Stefano, Webber, Bryan R.
We discuss how colour flows can be used to simplify the computation of matrix elements, and in the context of parton shower Monte Carlos with accuracy beyond leading-colour. We show that, by systematically employing them, the results for tree-level m
Externí odkaz:
http://arxiv.org/abs/2106.13471
We compute the decay spectrum for dark matter (DM) with masses above the scale of electroweak symmetry breaking, all the way to the Planck scale. For an arbitrary hard process involving a decay to the unbroken standard model, we determine the prompt
Externí odkaz:
http://arxiv.org/abs/2007.15001
Autor:
Buckley, Andy, Krauss, Frank, Plätzer, Simon, Seymour, Michael, Alioli, Simone, Andersen, Jeppe, Bellm, Johannes, Butterworth, Jon, Dasgupta, Mrinal, Duhr, Claude, Frixione, Stefano, Gieseke, Stefan, Hamilton, Keith, Hesketh, Gavin, Hoeche, Stefan, Jung, Hannes, Kilian, Wolfgang, Lönnblad, Leif, Maltoni, Fabio, Mangano, Michelangelo, Mrenna, Stephen, Nagy, Zoltán, Nason, Paolo, Nurse, Emily, Ohl, Thorsten, Oleari, Carlo, Papaefstathiou, Andreas, Plehn, Tilman, Prestel, Stefan, Ré, Emanuele, Reuter, Juergen, Richardson, Peter, Salam, Gavin, Schoenherr, Marek, Schumann, Steffen, Siegert, Frank, Siódmok, Andrzej, Sjödahl, Malin, Sjöstrand, Torbjörn, Skands, Peter, Soper, Davison, Soyez, Gregory, Webber, Bryan
Monte Carlo event generators (MCEGs) are the indispensable workhorses of particle physics, bridging the gap between theoretical ideas and first-principles calculations on the one hand, and the complex detector signatures and data of the experimental
Externí odkaz:
http://arxiv.org/abs/1902.01674
Recently, the CMS collaboration has reported their search for electroweak instanton-like processes with anomalous $B+L$ violation assuming multi-fermion but zero-boson final states. On the other hand, many theoretical studies suggest that anomalous $
Externí odkaz:
http://arxiv.org/abs/1809.10833
Autor:
Bauer, Christian W., Webber, Bryan R.
We update the earlier work of Refs. arXiv:1703.08562 and arXiv:1712.07147 on parton distribution functions in the full Standard Model to include gauge boson polarization, non-zero input electroweak boson PDFs and next-to-leading-order resummation of
Externí odkaz:
http://arxiv.org/abs/1808.08831
We compute the leading-order evolution of parton fragmentation functions for all the Standard Model fermions and bosons up to energies far above the electroweak scale, where electroweak symmetry is restored. We discuss the difference between double-l
Externí odkaz:
http://arxiv.org/abs/1806.10157
We present a resummation of those double-logarithmically enhanced electroweak correction that arise in pp colliders because protons are not SU(2) singlets, by solving DGLAP equations in the full Standard Model. We then show how to match these results
Externí odkaz:
http://arxiv.org/abs/1712.07147
We compute the leading-order evolution of parton distribution functions for all the Standard Model fermions and bosons up to energy scales far above the electroweak scale, where electroweak symmetry is restored. Our results include the 52 PDFs of the
Externí odkaz:
http://arxiv.org/abs/1703.08562