Search Results - "Pittau, R."

A four-dimensional approach to quantum field theories by Pittau, R.

“…A bstract I present a novel Four-Dimensional Regularization/Renormalization approach (FDR) to ultraviolet divergences in field theories which can be…”
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NNLO final-state quark-pair corrections in four dimensions by Page, B., Pittau, R.

“…We describe how NNLO final state quark-pair corrections are computed in FDR by directly enforcing gauge invariance and unitarity in the definition of the…”
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To d, or not to d: recent developments and comparisons of regularization schemes by Gnendiger, C., Signer, A., Stöckinger, D., Broggio, A., Cherchiglia, A. L., Driencourt-Mangin, F., Fazio, A. R., Hiller, B., Mastrolia, P., Peraro, T., Pittau, R., Pruna, G. M., Rodrigo, G., Sampaio, M., Sborlini, G., Bobadilla, W. J. Torres, Tramontano, F., Ulrich, Y., Visconti, A.

“…We give an introduction to several regularization schemes that deal with ultraviolet and infrared singularities appearing in higher-order computations in…”
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HELAC-NLO by Bevilacqua, G., Czakon, M., Garzelli, M.V., van Hameren, A., Kardos, A., Papadopoulos, C.G., Pittau, R., Worek, M.

“…Based on the OPP technique and the HELAC framework, HELAC-1LOOP is a program that is capable of numerically evaluating QCD virtual corrections to scattering…”
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QCD and strongly coupled gauge theories: challenges and perspectives by Brambilla, N., Eidelman, S., Foka, P., Gardner, S., Kronfeld, A. S., Alford, M. G., Alkofer, R., Butenschoen, M., Cohen, T. D., Erdmenger, J., Fabbietti, L., Faber, M., Goity, J. L., Ketzer, B., Lin, H. W., Llanes-Estrada, F. J., Meyer, H. B., Pakhlov, P., Pallante, E., Polikarpov, M. I., Sazdjian, H., Schmitt, A., Snow, W. M., Vairo, A., Vogt, R., Vuorinen, A., Wittig, H., Arnold, P., Christakoglou, P., Di Nezza, P., Fodor, Z., Garcia i Tormo, X., Höllwieser, R., Janik, M. A., Kalweit, A., Keane, D., Kiritsis, E., Mischke, A., Mizuk, R., Odyniec, G., Papadodimas, K., Pich, A., Pittau, R., Qiu, J.-W., Ricciardi, G., Salgado, C. A., Schwenzer, K., Stefanis, N. G., von Hippel, G. M., Zakharov, V. I.

“…We highlight the progress, current status, and open challenges of QCD-driven physics, in theory and in experiment. We discuss how the strong interaction is…”
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Scalar and pseudoscalar Higgs production in association with a top–antitop pair by Frederix, R., Frixione, S., Hirschi, V., Maltoni, F., Pittau, R., Torrielli, P.

“…We present the calculation of scalar and pseudoscalar Higgs production in association with a top–antitop pair to the next-to-leading order (NLO) accuracy in…”
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Primary Feynman rules to calculate the ∊-dimensional integrand of any 1-loop amplitude by Pittau, R.

“…A bstract When using dimensional regularization/reduction the ∊ -dimensional numerator of the 1-loop Feynman diagrams gives rise to rational contributions. I…”
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Testing and improving the numerical accuracy of the NLO predictions by Pittau, R.

“…I present a new and reliable method to test the numerical accuracy of NLO calculations based on modern OPP/Generalized Unitarity techniques. A convenient…”
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A standard format for Les Houches Event Files by Alwall, J., Ballestrero, A., Bartalini, P., Belov, S., Boos, E., Buckley, A., Butterworth, J.M., Dudko, L., Frixione, S., Garren, L., Gieseke, S., Gusev, A., Hinchliffe, I., Huston, J., Kersevan, B., Krauss, F., Lavesson, N., Lönnblad, L., Maina, E., Maltoni, F., Mangano, M.L., Moortgat, F., Mrenna, S., Papadopoulos, C.G., Pittau, R., Richardson, P., Seymour, M.H., Sherstnev, A., Sjöstrand, T., Skands, P., Slabospitsky, S.R., Wa̧s, Z., Webber, B.R., Worek, M., Zeppenfeld, D.

“…A standard file format is proposed to store process and event information, primarily output from parton-level event generators for further use by…”
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Feynman rules for the rational part of the electroweak 1-loop amplitudes in the Rξ gauge and in the unitary gauge by Garzelli, M. V., Malamos, I., Pittau, R.

“…We present the complete set of Feynman rules producing the rational terms of kind R 2 needed to perform any 1-loop calculation in the Electroweak Standard…”
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Feynman rules for the rational part of the electroweak 1-loop amplitudes by Garzelli, M. V., Malamos, I., Pittau, R.

“…We present the complete set of Feynman rules producing the rational terms of kind R 2 needed to perform any 1-loop calculation in the Electroweak Standard…”
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Update of the Binoth Les Houches Accord for a standard interface between Monte Carlo tools and one-loop programs by Alioli, S., Badger, S., Bellm, J., Biedermann, B., Boudjema, F., Cullen, G., Denner, A., van Deurzen, H., Dittmaier, S., Frederix, R., Frixione, S., Garzelli, M.V., Gieseke, S., Glover, E.W.N., Greiner, N., Heinrich, G., Hirschi, V., Höche, S., Huston, J., Ita, H., Kauer, N., Krauss, F., Luisoni, G., Maître, D., Maltoni, F., Nason, P., Oleari, C., Pittau, R., Plätzer, S., Pozzorini, S., Reina, L., Reuschle, C., Robens, T., Schlenk, J., Schönherr, M., Siegert, F., von Soden-Fraunhofen, J.F., Tackmann, F., Tramontano, F., Uwer, P., Salam, G., Skands, P., Weinzierl, S., Winter, J., Yundin, V., Zanderighi, G., Zaro, M.

“…We present an update of the Binoth Les Houches Accord (BLHA) to standardise the interface between Monte Carlo programs and codes providing one-loop matrix…”
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A proposal for a standard interface between Monte Carlo tools and one-loop programs by Binoth, T., Boudjema, F., Dissertori, G., Lazopoulos, A., Denner, A., Dittmaier, S., Frederix, R., Greiner, N., Höche, S., Giele, W., Skands, P., Winter, J., Gleisberg, T., Archibald, J., Heinrich, G., Krauss, F., Maître, D., Huber, M., Huston, J., Kauer, N., Maltoni, F., Oleari, C., Passarino, G., Pittau, R., Pozzorini, S., Reiter, T., Schumann, S., Zanderighi, G.

“…Many highly developed Monte Carlo tools for the evaluation of cross sections based on tree matrix elements exist and are used by experimental collaborations in…”
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Physics potential and experimental challenges of the LHC luminosity upgrade by Gianotti, F., Mangano, M. L., Virdee, T., Abdullin, S., Azuelos, G., Ball, A., Barberis, D., Belyaev, A., Bloch, P., Bosman, M., Casagrande, L., Cavalli, D., Chumney, P., Cittolin, S., Dasu, S., De Roeck, A., Ellis, N., Farthouat, P., Fournier, D., Hansen, J.-B., Hinchliffe, I., Hohlfeld, M., Huhtinen, M., Jakobs, K., Joram, C., Mazzucato, F., Mikenberg, G., Miagkov, A., Moretti, M., Moretti, S., Niinikoski, T., Nikitenko, A., Nisati, A., Paige, F., Palestini, S., Papadopoulos, C. G., Piccinini, F., Pittau, R., Polesello, G., Richter-Was, E., Sharp, P., Slabospitsky, S. R., Smith, W. H., Stapnes, S., Tonelli, G., Tsesmelis, E., Usubov, Z., Vacavant, L., van der Bij, J., Watson, A., Wielers, M.

“…We discuss the physics potential and the experimental challenges of an upgraded LHC running at an instantaneous luminosity of 1035 cm-2s-1. The detector R&D…”
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Recent news and results in the computation of NLO processes with new techniques by Pittau, R.

“…I illustrate new techniques and recently obtained results in the computation of perturbative QCD processes at the NLO accuracy…”
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Production of light Higgs pairs in 2-Higgs doublet models via the Higgs-strahlung process at the LHC by Moretti, M., Moretti, S., Piccinini, F., Pittau, R., Rathsman, J.

“…At the Large Hadron Collider, we prove the feasibility to detect pair production of the lightest CP -even Higgs boson h of a Type II 2-Higgs Doublet Model…”
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A new approach to multi-jet calculations in hadron collisions by Caravaglios, F., Mangano, M.L., Moretti, M., Pittau, R.

“…We present an algorithm to evaluate the exact, tree-level matrix elements for multi-parton processes in QCD. We tested this technique, based on the recursive…”
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A simple method for multi-leg loop calculations by Pittau, R.

“…In this paper, I present a technique to simplify the tensorial reduction of one-loop integrals with arbitrary internal masses, but at least two massless…”
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Erratum: Feynman rules for the rational part of the Electroweak 1-loop amplitudes by Garzelli, M. V., Malamos, I., Pittau, R.

“…We present the complete set of Feynman rules producing the rational terms of kind R 2 needed to perform any 1-loop calculation in the Electroweak Standard…”
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A simple method for multi-leg loop calculations 2: A general algorithm by Pittau, R.

“…The method introduced in a previous paper to simplify the tensorial reduction in multi-leg loop calculations is extended to generic one-loop integrals, with…”
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