Elements of QCD for hadron colliders

CERN Yellow Reports: School Proceedings 5:2018 (2020) 1-56

Abstract:

The aim of these lectures is to provide students with an introduction to some of the core concepts and methods of QCD that are relevant in an LHC context.Â

Exploring Hamiltonian truncation in d=2+1

Physical Review D American Physical Society (APS) 102:6 (2020) 065001

Authors:

Joan Elias-Miró, Edward Hardy

On the impact of non-factorisable corrections in VBF single and double Higgs production

Journal of High Energy Physics Springer 2020:10 (2020) 131

Authors:

Fa Dreyer, A Karlberg, L Tancredi

Abstract:

We study the non-factorisable QCD corrections, computed in the eikonal approximation, to Vector-Boson Fusion single and double Higgs production and show the combined factorisable and non-factorisable corrections for both processes at O(αs2). We investigate the validity of the eikonal approximation with and without selection cuts, and carry out an in-depth study of the relative size of the non-factorisable next-to-next-to-leading order corrections compared to the factorisable ones. In the case of single Higgs production, after selection cuts are applied, the non-factorisable corrections are found to be mostly contained within the factorisable scale uncertainty bands. When no cuts are applied, instead, the non-factorisable corrections are slightly outside the scale uncertainty band. Interestingly, for double Higgs production, we find that both before and after applying cuts, non-factorisable corrections are enhanced compared to the single Higgs case. We trace this enhancement to the existence of delicate cancellations between the various leading-order Feynman diagrams, which are partly spoiled by radiative corrections. All contributions studied here have been implemented in proVBFH v1.2.0 and proVBFHH v1.1.0.

Machine Learning Calabi-Yau Four-folds

(2020)

Authors:

Yang-Hui He, Andre Lukas

Review of Particle Physics

Oxford University Press (OUP) 2020:8 (2020)

Authors:

PA Zyla, RM Barnett, J Beringer, O Dahl, DA Dwyer, DE Groom, C-J Lin, KS Lugovsky, E Pianori, DJ Robinson, CG Wohl, W-M Yao, K Agashe, G Aielli, BC Allanach, C Amsler, M Antonelli, EC Aschenauer, DM Asner, H Baer, Sw Banerjee, L Baudis, CW Bauer, JJ Beatty, VI Belousov, S Bethke, A Bettini, O Biebel, KM Black, E Blucher, O Buchmuller, V Burkert, MA Bychkov, RN Cahn, M Carena, A Ceccucci, A Cerri, D Chakraborty, R Sekhar Chivukula, G Cowan, G D'Ambrosio, T Damour, D de Florian, A de Gouvêa, T DeGrand, P de Jong, G Dissertori, BA Dobrescu, M D'Onofrio, M Doser, M Drees, HK Dreiner, P Eerola, U Egede, S Eidelman, J Ellis, J Erler, VV Ezhela, W Fetscher, BD Fields, B Foster, A Freitas, H Gallagher, L Garren, H-J Gerber, G Gerbier, T Gershon, Y Gershtein, T Gherghetta, AA Godizov, MC Gonzalez-Garcia, M Goodman, C Grab, AV Gritsan, C Grojean, M Grünewald, A Gurtu, T Gutsche, HE Haber, C Hanhart, S Hashimoto, Y Hayato, A Hebecker, S Heinemeyer, B Heltsley, JJ Hernández-Rey, K Hikasa, J Hisano, A Höcker, J Holder, A Holtkamp, J Huston, T Hyodo, KF Johnson, M Kado, M Karliner, UF Katz, M Kenzie, VA Khoze, SR Klein, E Klempt, RV Kowalewski, F Krauss, M Kreps, B Krusche, Y Kwon, O Lahav, J Laiho, LP Lellouch, J Lesgourgues, AR Liddle, Z Ligeti, C Lippmann, TM Liss, L Littenberg, C Lourengo, SB Lugovsky, A Lusiani, Y Makida, F Maltoni, T Mannel, AV Manohar, WJ Marciano, A Masoni, J Matthews, U-G Meißner, M Mikhasenko, DJ Miller, D Milstead, RE Mitchell, K Mönig, P Molaro, F Moortgat, M Moskovic, K Nakamura, M Narain, P Nason, S Navas, M Neubert, P Nevski, Y Nir, KA Olive, C Patrignani, JA Peacock, ST Petcov, VA Petrov, A Pich, A Piepke, A Pomarol, S Profumo, A Quadt, K Rabbertz, J Rademacker, G Raffelt, H Ramani, M Ramsey-Musolf, BN Ratcliff, P Richardson, A Ringwald, S Roesler, S Rolli, A Romaniouk, LJ Rosenberg, JL Rosner, G Rybka, M Ryskin, RA Ryutin, Y Sakai, GP Salam, S Sarkar, F Sauli, O Schneider, K Scholberg, AJ Schwartz, J Schwiening, D Scott, V Sharma, SR Sharpe, T Shutt, M Silari, T Sjöstrand, P Skands, T Skwarnicki, GF Smoot, A Soffer, MS Sozzi, S Spanier, C Spiering, A Stahl, SL Stone, Y Sumino, T Sumiyoshi, MJ Syphers, F Takahashi, M Tanabashi, J Tanaka, M Taševský, K Terashi, J Terning, U Thoma, RS Thorne, L Tiator, M Titov, NP Tkachenko, DR Tovey, K Trabelsi, P Urquijo, G Valencia, R Van de Water, N Varelas, G Venanzoni, L Verde, MG Vincter, P Vogel, W Vogelsang, A Vogt, V Vorobyev, SP Wakely, W Walkowiak, CW Walter, D Wands, MO Wascko, DH Weinberg, EJ Weinberg, M White, LR Wiencke, S Willocq, CL Woody, RL Workman, M Yokoyama, R Yoshida, G Zanderighi, GP Zeller, OV Zenin, R-Y Zhu, S-L Zhu, F Zimmermann, J Anderson, T Basaglia, VS Lugovsky, P Schaffner, W Zheng

Abstract:

Abstract The Review summarizes much of particle physics and cosmology. Using data from previous editions, plus 3,324 new measurements from 878 papers, we list, evaluate, and average measured properties of gauge bosons and the recently discovered Higgs boson, leptons, quarks, mesons, and baryons. We summarize searches for hypothetical particles such as supersymmetric particles, heavy bosons, axions, dark photons, etc. Particle properties and search limits are listed in Summary Tables. We give numerous tables, figures, formulae, and reviews of topics such as Higgs Boson Physics, Supersymmetry, Grand Unified Theories, Neutrino Mixing, Dark Energy, Dark Matter, Cosmology, Particle Detectors, Colliders, Probability and Statistics. Among the 120 reviews are many that are new or heavily revised, including a new review on High Energy Soft QCD and Diffraction and one on the Determination of CKM Angles from B Hadrons. The Review is divided into two volumes. Volume 1 includes the Summary Tables and 98 review articles. Volume 2 consists of the Particle Listings and contains also 22 reviews that address specific aspects of the data presented in the Listings. The complete Review (both volumes) is published online on the website of the Particle Data Group (pdg.lbl.gov) and in a journal. Volume 1 is available in print as the PDG Book. A Particle Physics Booklet with the Summary Tables and essential tables, figures, and equations from selected review articles is available in print and as a web version optimized for use on phones as well as an Android app.