Standard Model at the LHC 2022

Europe/Zurich
500/1-001 - Main Auditorium (CERN)

500/1-001 - Main Auditorium

CERN

400
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Alexander Yohei Huss (CERN), Tancredi Carli (CERN)
Description

The SM@LHC workshop deals with the latest developments as well as future prospects in Standard Model phenomenology at the LHC. The emphasis lies in bringing together experimentalists and theorists to stimulate discussions on the most interesting and topical aspects across the various fields. The main topics include Electroweak, Higgs, QCD, Top, Flavour Physics and EFT.

Given the present COVID-19 situation with most restrictions lifted, the meeting is planned in hybrid-mode (in person and on-line attendance).

Young Scientist Presentation award:

Mattermost:  mattermost.web.cern.ch/smlhc2022

Wi-Fi at CERN:  network connection

Slide upload: If the upload button does not show up directly on the timetable view, go to the contribution itself (either click on “view contribution details” button on the top right when you click on your talk, or via https://indico.cern.ch/event/1101427/contributions/). If you still experience issues with uploading slides, please send them to us and we can take care of the upload for you.

Previous editions:  Online (SM@LHC 2021), Zurich (SM@LHC 2019), Berlin (SM@LHC 2018), Amsterdam (SM@LHC 2017), Pittsburgh (SM@LHC 2016), Florence (SM@LHC 2015), Madrid (SM@LHC 2014), Freiburg (SM@LHC 2013), Copenhagen (SM@LHC 2012), Durham (SM@LHC 2011) and London (SM@LHC 2009).

International Organizing Committee: Juan Alcaraz Maestre, Jeppe Andersen, Mario Campanelli, Tancredi Carli, Vitaliano Ciulli, Ayres Freitas, Stefan Höche, Eric Laenen, Katharina Müller, Aleandro Nisati
 

 

Videoconference
Standard Model at the LHC 2022
Zoom Meeting ID
67151614168
Host
Alexander Yohei Huss
Alternative hosts
Benoit Loyer, Tancredi Carli
Useful links
Join via phone
Zoom URL
Registration
ONLINE Registration form
Participants
  • Aaron White
  • Abdelhamid Haddad
  • Adrian Berrocal Guardia
  • Akram Khan
  • Aleandro Nisati
  • Alessandro Guida
  • Alessandro Ruggiero
  • Alessandro Vicini
  • Alexander Cáceres
  • Alexander Gavriliuk
  • Alexander Mitov
  • Alexander Yohei Huss
  • Alexis POMPILI
  • Aman Mukesh Desai
  • Amanda Sarkar
  • Amartya Rej
  • Amit Adhikary
  • Amitabh Lath
  • Ana Maria Guisao Betancur
  • Ana Rosario Cueto Gomez
  • Andreas Meyer
  • Andrei Popescu
  • Ankita Mehta
  • Anna Katarzyna Kulesza
  • Anthony Badea
  • Arif Akhundov
  • Avto Kharchilava
  • Ayres Freitas
  • Bahaa Ilyas
  • Balasubramaniam K M
  • Bhagyashree Pagare
  • Bharadwaj Harikrishnan
  • Bianca Sofia Pinolini
  • Bin Yan
  • Bogdan Malaescu
  • Boping Chen
  • Carlo Oleari
  • Caterina Aruta
  • Chariclia Petridou
  • Chinmoy Dey
  • Chris Hays
  • Christian Biello
  • Christine Davies
  • Christoph Englert
  • Christoph Peter Englert
  • Christopher Schwan
  • Claire Gwenlan
  • Clara Ramon Alvarez
  • Claude Charlot
  • Claudia Cornella
  • Cody Duncan
  • Colomba Brancaccio
  • Connie Potter
  • Cristobal Ignacio Morales Reveco
  • Daniel Britzger
  • Daniel Camarero Munoz
  • Daniel Froidevaux
  • Daniel Savoiu
  • Daniel Stremmer
  • Daniele Rizzo
  • Danish Farooq Meer
  • David Marcus E Marckx
  • Dawn Hudson
  • Dayanand Mishra
  • Dongshuo Du
  • Eimear Isobel Conroy
  • Ekaterina Ramakoti
  • Emanuele Angelo Bagnaschi
  • Emine YILDIRIM
  • Emmanuel Sauvan
  • Eric Laenen
  • Erlend Aakvaag
  • Eslam Shokr
  • Ethan Lewis Simpson
  • Fabiola Correa Padilla
  • Federico Camponovo
  • Federico Silvetti
  • Fernando Febres Cordero
  • Florian Reiss
  • Francesco Giuli
  • Francesco Giuli
  • Francesco Sarandrea
  • Frank Ellinghaus
  • Frank Sauerburger
  • Gabriel Gomes
  • Gabriel Sophys
  • Gabriella Pasztor
  • Ganapati Dash
  • Gauthier Durieux
  • Gennaro Corcella
  • Georgios Billis
  • Gerardo Vasquez
  • Giacomo Boldrini
  • Giovanni Pelliccioli
  • Giovanni Pelliccioli
  • Giovanni Stagnitto
  • Giulio Gambuti
  • Giuseppe Bevilacqua
  • Gloria Bertolotti
  • Grigory Vorobyev
  • Guilherme Bruneri
  • Guillelmo Gomez Ceballos Retuerto
  • Gustavo Henrique Silva Alves
  • Haesung Park
  • Haifeng Li
  • Halil Saka
  • Hammad Rasheed
  • Hannes Mildner
  • Hao Zhang
  • Heramb Podar
  • Heribertus Bayu Hartanto
  • Huan-Yu Bi
  • Hyeonja Jhang
  • Ilaria Brivio
  • Isabella Colizzi
  • Itana Bubanja
  • Jack Holguin
  • Jaime León Holgado
  • JAKHA Mohamed
  • Javier Cuevas
  • Javier Llorente Merino
  • Jelena Mijuskovic
  • Jhovanny Andres Mejia Guisao
  • Jianbin Chen
  • Jingyi Chao
  • Joao Paulo Pinheiro
  • Joey Huston
  • Johannes Michel
  • John Patrick Mc Gowan
  • Jonas Lindert
  • Jonathan Hermann
  • Jonathan Mo
  • Jonathon Mark Langford
  • Jordy de Vries
  • Jose Antonio Fernandez Pretel
  • Jose Enrique Palencia Cortezon
  • Josh Bendavid
  • Joshua Falco Beirer
  • Juan Alcaraz Maestre
  • Juan Chacon
  • Juan Pablo Fernandez Ramos
  • Juan Terron Cuadrado
  • Judith Katzy
  • Junghwan Goh
  • Juri Fiaschi
  • Kai Böse
  • Kajal Samanta
  • Kajari Mazumdar
  • Kajari Mazumdar
  • Karolos Potamianos
  • Karsten Köneke
  • Kartik Bhide
  • Katharina Voss
  • Kenneth Long
  • Konrad Aleksander Kusiak
  • Kristin Lohwasser
  • Laura Elaine Bruce
  • Laura Reina
  • Leif Gellersen
  • Lidia Dell'Asta
  • Lorenzo Sestini
  • Louis Moureaux
  • Louis Portales
  • Lourdes Urda
  • Luca Rottoli
  • Lucia Di Ciaccio
  • Luis Roberto Flores Castillo
  • Lukas Simon
  • Maarten Boonekamp
  • Maeve Madigan
  • Malgorzata Maria Worek
  • Manan Shah
  • Marcel Vos
  • Marco Bonetti
  • Marco Bonvini
  • Marco Niggetiedt
  • Marco Vitti
  • Marek Schoenherr
  • Maria Cepeda
  • Maria Moreno Llacer
  • Maria Vittoria Garzelli
  • Marisilvia Donadelli
  • Marius Höfer
  • Marius Wiesemann
  • Mark Neubauer
  • Markus Seidel
  • Martin Gonzalez-Alonso
  • Marzia Bordone
  • Mateusz Jacek Goncerz
  • Mathieu Pellen
  • Mathieu Pellen
  • Matt LeBlanc
  • Matteo Defranchis
  • Matteo Magherini
  • Matteo Marcoli
  • Matteo Saccardi
  • Matthew Knight
  • Matthew Lim
  • Matthias Kerner
  • Max Vanden Bemden
  • Mehmet Demirci
  • Menglin Xu
  • Michal Czakon
  • Michelangelo Mangano
  • Michele Gallinaro
  • Miha Muskinja
  • MIHIR HEMANTKUMAR PATEL
  • Mingshui Chen
  • Minuk Choi
  • Mohammed Boukidi
  • Monica Dunford
  • Neetu Raj Chundawat
  • Nicolas Viaux Maira
  • noemi palmeri
  • Oldrich Kepka
  • Oleg Kuprash
  • Oliver Majersky
  • Oz Amram
  • Paolo Azzurri
  • Paula Alvarez Cartelle
  • Peiwen WU
  • Peter Stangl
  • Philipp Windischhofer
  • Pia Bredt
  • Piyabut Burikham
  • POONAM CHOUDHARY
  • Priyanka Priyadarshini
  • Quentin Bonnefoy
  • Quentin BONNEFOY
  • Rahmat Rahmat
  • Raimundo Ignacio Hoppe Elsholz
  • Renaud Amalric
  • Rene Poncelet
  • Robert Harlander
  • Robert Harr
  • Roberto Covarelli
  • Roberto Salerno
  • Roberto Seidita
  • Roy Lemmon
  • Rui Zhang
  • Ruijia Yang
  • Sabine Kraml
  • Salman K Malik
  • Saptaparna Bhattacharya
  • Saumya Saumya
  • Scott Thomas
  • Sebastian White
  • Sebastien Gadrat
  • Sehar Ajmal
  • Sergio Sanchez Cruz
  • Shafeeq Rahman Thottoli
  • Shankha Banerjee
  • Shilpi Jain
  • Shivam Raj
  • Si Hyun Jeon
  • Siavash Neshatpour
  • Silvia Ferrario Ravasio
  • Silvia Goy Lopez
  • Simone Caletti
  • Soumya Mukherjee
  • Soumyadip Barman
  • Srishti Agarwal
  • Stefan Dittmaier
  • Stefan Prestel
  • Stefan Schulte
  • Stefania De Curtis
  • Stefano Camarda
  • Susmita Mondal
  • SY Li
  • Tancredi Carli
  • Tania Robens
  • Teng Jian Khoo
  • Terrance Figy
  • Terry Generet
  • Theodoros Nellopoulos
  • Tianyu Justin Yang
  • Timea Vitos
  • Timothy Paul Scanlon
  • Tongbin Zhao
  • Tongzhi Yang
  • Tristan du Pree
  • Tu Thong Tran
  • Upalaparna Banerjee
  • Vasily Sotnikov
  • Vitaliano Ciulli
  • Waleed Abdallah
  • Walter Alda Junior
  • Wanli Ju
  • Warsimakram I K
  • William Barter
  • Wolfgang Adam
  • Wolfgang Walkowiak
  • Xiaohui Liu
  • Xiaoli Luo
  • Xiaoran Zhao
  • Xiaowen Su
  • Xing Wang
  • Xingguo Li
  • xiu man
  • Xu Li
  • Xuan Chen
  • Yacine Haddad
  • yahya mekaoui
  • Ye Chen
  • Ynyr Harris
  • Yohan Mauricio Oviedo Torres
  • Yong Du
  • Yoxara Sánchez Villamizar
  • Yu Zhang
  • Yutong Liu
  • Zafer Acar
  • Zefran Rozario
  • Zehua Xu
  • Zhengwen Liu
  • Zhibo Wu
  • Zhijun Liang
  • Zhiqing Philippe Zhang
  • Zhuoni Qian
    • Higgs
      Conveners: Karsten Koeneke (Albert Ludwigs Universitaet Freiburg (DE)), Maria Cepeda (CIEMAT)
    • 1:45 PM
      Coffee break
    • Top
      Conveners: Jose Enrique Palencia Cortezon (Universidad de Oviedo (ES)), Malgorzata Maria Worek (Rheinisch Westfaelische Tech. Hoch. (DE)), Maria Moreno Llacer (Univ. of Valencia and CSIC (ES))
    • 3:30 PM
      Coffee break
    • Heavy Flavour
      Conveners: Alexis Pompili (Universita e INFN, Bari (IT)), Marzia Bordone (University of Torino)
    • 5:15 PM
      break
    • YSF
      Conveners: Ayres Freitas, Juan Alcaraz Maestre (Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT, Madrid))
      • 26
        Mixed QCD-electroweak corrections to Higgs plus jet production at the LHC

        The detailed study of the Higgs boson is one of the main tasks of contemporary particle physics. Gluon fusion, the main production channel of Higgs bosons at the LHC, has been successfully modelled in QCD up to $\text{N}^3\text{LO}$. To fully exploit this unprecedent theoretical effort, sub-leading contributions, such as electroweak corrections, must be investigated. I will present the analytic calculations of the gluon- and quark-induced Higgs plus jet amplitudes in mixed QCD-electroweak corrections mediated by light quarks up to order $v \alpha^2 \alpha_S^{3/2}$.

        Speaker: Mr Marco Bonetti (RWTH University)
      • 27
        Search for non-resonant Higgs bosons pairs production in the bbtautau final state at CMS

        The most recent results on non-resonant Higgs bosons pairs production in the final state with two bottom quarks and two tau leptons will be presented. This final state has a sizeable branching fraction (7.3%) and the analysis benefit also from precise tau identification algorithms developed within the CMS collaboration. The analysis targets the gluon-gluon fusion and vector boson fusion production modes. 95% CL limits are set on SM production cross section, Higgs boson trilinear self-coupling and coupling of two Higgs bosons to two vector bosons. The sensitivity achieved by this search, performed with the full Run2 data set, is five times better than the one published using the LHC 2016 data set only. The improvement is determined by the larger statistics, the improved trigger strategy and by the use of Deep Neural Networks to perform objects selection and signal discrimination.

        Speaker: Jaime Leon Holgado (Centro de Investigaciones Energéticas Medioambientales y Tec. (ES))
      • 28
        Observation of VBS production in opposite-sign WW events at CMS

        The observation of the electroweak production of a W+W− pair in association with two jets, with both W bosons decaying leptonically, is reported. The data sample corresponds to an integrated luminosity of 138fb−1 of proton-proton collisions at s = 13 TeV, collected by the CMS detector at the CERN LHC. A signal is observed (expected) with a significance of 5.6 (5.2) standard deviations with respect to the background-only hypothesis.

        Speaker: Bianca Sofia Pinolini
      • 29
        Flavour Tagging with Jet Substructure

        Jets are collimated bunches of hadrons ubiquitous in the detectors at the LHC. Studying the internal structure of these objects is essential to identify the original objects that originate the jet and to understand the underlying physical process. An important category of Jet Substructure (JSS) observables are Jet Angularities which have been recently calculated in resummed perturbation theory [1, 2] and measured in the Z+Jet and dijet processes at the LHC.

        In this talk I will discuss how Jet Angularities can be exploited to define an infrared and collinear safe jet flavour tagger considering a recently proposed [3] application in the context of the Z+Jet process. In particular, by tagging the final state jet as quark-initiated we have been able to enhance the initial-state gluon contribution. I discuss new resummed theoretical predictions for the transverse momentum distributions of events selected by the tagger which would be potentially interesting to probe the gluonic degrees of freedom of the colliding protons.

        Speaker: Simone Caletti
      • 30
        Differential cross-sections for $t\bar{t}j + X$ production at the LHC

        The fundamental SM parameter of the top quark mass can be measured with unprecedented accuracy at LHC due to the large production cross section for top quark pairs, and top quark pairs in association with at least one hard jet. The extraction of this quantity can be achieved using the $\rho_s$ distribution, an observable related to the invariant mass of the t-tbar + jet system. Thereby, the top-quark mass extraction can be performed using different mass renormalisation schemes. We present theory predictions useful for this extraction in the on-shell, the MSbar and, for the first time,the MSR scheme.
        In view of the high experimental accuracy, which is reached in measuring
        the relevant production cross sections at the LHC, the control over the associated
        theory uncertainties becomes increasingly important. To this end we present a study of the effect of varying theoretical input parameters in the calculation of t-tbar + jet + X NLO differential cross sections. We investigate the effect of static and dynamical renormalization and factorization scale definitions and different PDF sets as well as the influence of the $R$ parameter in the jet reconstruction procedure. We make public a set of reference fiducial cross-sections for different cuts, that we expect to be very useful for the forthcoming LHC experimental analyses at $\sqrt{s}$ = 13 TeV and higher center-of-mass energies.

        Speaker: Katharina Voss (University of Siegen (DE))
      • 31
        The Drell-Yan $q_T$ Spectrum and Its Uncertainty at N$^3$LL$'$

        We present state-of-the-art SCETlib predictions for the $W$ and $Z/\gamma^*$ transverse-momentum ($q_T$) distributions at the LHC at complete three-loop order in resummed perturbation theory (N$^3$LL$'$) and matched to available fixed order. We pay particular attention to the estimation of theory uncertainties via profile scale variations in such a way that perturbative uncertainties due to PDF evolution, perturbative resummation uncertainties, and nonperturbative uncertainties for $q_T \to 0$ are cleanly disentangled, and compare our predictions to high-precision measurements by the ATLAS and CMS experiments. The speed and versatility of our resummed calculation also allow us to study the dependence on the strong coupling, the PDFs, and their parametric uncertainties at this order. We find intriguing evidence that the normalized ATLAS and CMS $Z$ $q_T$ spectra may prefer a lower strong coupling than the PDG value.

        Speaker: Johannes Michel (MIT CTP)
      • 32
        A search for the dimuon decay of the Standard Model Higgs boson in pp collisions at 13 TeV with the ATLAS Detector

        A search for the dimuon decay of the Standard Model (SM) Higgs boson is performed using data corresponding to an integrated luminosity of 139/fb collected with the ATLAS detector in Run2 pp collisions at 13 TeV at the Large Hadron Collider. The observed (expected) significance over the background-only hypothesis for a Higgs boson with a mass of 125.09 GeV is 2.0σ (1.7σ). The observed upper limit on the cross section times branching ratio is 2.2 times the SM prediction at 95% confidence level, while the expected limit on a H → μμ signal assuming the absence (presence) of a SM signal is 1.1 (2.0). The best-fit value of the signal strength parameter, defined as the ratio of the observed signal yield to the one expected in the SM, is μ=1.2 ± 0.6.

        Speakers: Ye Chen (University of Science and Technology of China (CN)), Ye Chen (Hefei University of Science and Technology of China)