BEGIN:VCALENDAR VERSION:2.0 PRODID:-//CERN//INDICO//EN BEGIN:VEVENT SUMMARY:Precise predictions for the trilinear Higgs self-coupling in the S tandard Model and beyond DTSTART;VALUE=DATE-TIME:20230915T120000Z DTEND;VALUE=DATE-TIME:20230915T121500Z DTSTAMP;VALUE=DATE-TIME:20260926T105828Z UID:indico-contribution-22-11@cern.ch DESCRIPTION:Speakers: GABELMANN\, Martin (DESY)\nThe investigation of the trilinear self-coupling of the discovered Higgs boson is one of the main g oals of particle physics in the near future.\nWe provide predictions for t his coupling\, expressed in terms of the coupling modifier $\\kappa_{\\lam bda}$\, incorporating one-loop corrections within arbitrary renormalizable QFTs.\nThe presented framework allows to apply a wide class of pre- and u ser-defined renormalization conditions whereas the calculation of all requ ired one-\, two- and three-point functions is incorporated in an automated way.\n\nIn this talk I motivate precision predictions for trilinear Higgs couplings in the context of di-Higgs production.\nThe basic ingredients o f a generic $\\kappa_\\lambda$ calculation at the one-loop order are intro duced. \nI discus s applications to a variety of BSM models featuring scalar singlets\, doub lets and triplets while focusing on issues related to renormalization as w ell as the incorporation of momentum effects.\n\nhttp://indico.fuw.edu.pl/ contributionDisplay.py?contribId=11&sessionId=22&confId=66 LOCATION:University of Warsaw\, Faculty of Physics 1.01 URL:http://indico.fuw.edu.pl/contributionDisplay.py?contribId=11&sessionId =22&confId=66 END:VEVENT BEGIN:VEVENT SUMMARY:Probing CP violation in Higgs -> tau+ tau- gamma DTSTART;VALUE=DATE-TIME:20230915T131500Z DTEND;VALUE=DATE-TIME:20230915T133000Z DTSTAMP;VALUE=DATE-TIME:20260926T105828Z UID:indico-contribution-22-25@cern.ch DESCRIPTION:Speakers: Dr. SAHOO\, Dibyakrupa (Institute of Theoretical Phy sics\, Faculty of Physics\, University of Warsaw\, Warsaw\, Poland)\nExist ing studies of Higgs-tau Yukawa coupling allows for the presence of a non- zero CP-odd contribution. This is usually probed and constrained at the LH C by studying the distribution of events with respect to the angle between the two tau decay planes in H -> tau+ tau- decay. We study another intere sting signature of CP violation\, namely forward-backward asymmetry in the decay H -> tau+ tau- gamma. This CP-asymmetry interestingly requires inte rference of tree and one-loop level contributions. We focus on how this as ymmetry can be quantified and whether such a study would be feasible in th e high luminosity phase of LHC.\n\nhttp://indico.fuw.edu.pl/contributionDi splay.py?contribId=25&sessionId=22&confId=66 LOCATION:University of Warsaw\, Faculty of Physics 1.01 URL:http://indico.fuw.edu.pl/contributionDisplay.py?contribId=25&sessionId =22&confId=66 END:VEVENT BEGIN:VEVENT SUMMARY:Higgs Pair Production in a Composite 2HDM DTSTART;VALUE=DATE-TIME:20230915T121500Z DTEND;VALUE=DATE-TIME:20230915T123000Z DTSTAMP;VALUE=DATE-TIME:20260926T105828Z UID:indico-contribution-22-13@cern.ch DESCRIPTION:Speakers: Mr. EGLE\, Felix (Institute for Theoretical Phyiscs (ITP)\, Karlsruhe Institute of Technology (KIT))\nIn composite Higgs model s the Higgs boson is not an elementary particle\, but of composite nature\ , emerging as a pseudo Nambu-Goldstone boson of a strongly interacting sec tor. In a composite 2-Higgs-Doublet Model (2HDM) a 2HDM-like structure is generated but with couplings already predetermined by the composite nature of the model. In this talk\, we present Higgs pair production through glu on fusion at the LHC in a composite 2HDM. We give a brief introduction int o the model and an overview over the calculation\, highlighting the new co uplings and diagrams contributing to di-Higgs production. Applying the mos t relevant theoretical and experimental constraints\, we scan the paramete r space of the model. For the obtained allowed parameter scenarios we pres ent and discuss the impact on Higgs pair production from new heavy top qua rks and from resonant Higgs pair production both for the inclusive cross s ection and for the distributions.\n\nhttp://indico.fuw.edu.pl/contribution Display.py?contribId=13&sessionId=22&confId=66 LOCATION:University of Warsaw\, Faculty of Physics 1.01 URL:http://indico.fuw.edu.pl/contributionDisplay.py?contribId=13&sessionId =22&confId=66 END:VEVENT BEGIN:VEVENT SUMMARY:Probing anomalous ZZγ and Zγγ couplings at the e^+e^- colliders using the optimal observable technique DTSTART;VALUE=DATE-TIME:20230915T124500Z DTEND;VALUE=DATE-TIME:20230915T130000Z DTSTAMP;VALUE=DATE-TIME:20260926T105828Z UID:indico-contribution-22-15@cern.ch DESCRIPTION:Speakers: Mr. JAHEDI\, Sahabub (Indian Institute of Technology \, Guwahati)\nWe study the anomalous ZZγ and Zγγ couplings that can be probed via\nZγ production at the e^+ e^− colliders. We take Standard Mo del Effective Field Theory (SMEFT) approach to examine these anomalous neu tral triple gauge couplings in a model-independent way. There are four ind ependent dimension-8 operators that generate these gauge interactions\, on e of them is CP-conserving and rest three are CP-violating. We adopt optim al observable technique to extract the sensitivity at which these anomalou s\ncouplings can be probed at future e^+ e^− colliders and then compare the results with the latest experimental limit obtained at the LHC. We als o study the impact and advantage of beam polarization in these precision m easurements. Statistical limit (95% C.L.) on individual anomalous coupling s as well as the correlation between various couplings have\nbeen discusse d in detail.\n\nhttp://indico.fuw.edu.pl/contributionDisplay.py?contribId= 15&sessionId=22&confId=66 LOCATION:University of Warsaw\, Faculty of Physics 1.01 URL:http://indico.fuw.edu.pl/contributionDisplay.py?contribId=15&sessionId =22&confId=66 END:VEVENT BEGIN:VEVENT SUMMARY:Connecting $(g − 2)_\\mu$ to neutrino mass DTSTART;VALUE=DATE-TIME:20230915T113000Z DTEND;VALUE=DATE-TIME:20230915T114500Z DTSTAMP;VALUE=DATE-TIME:20260926T105828Z UID:indico-contribution-22-0@cern.ch DESCRIPTION:Speakers: Prof. NISHI\, Celso C. (Federal University of ABC\, Brazil)\nOne simple way to lower the scale of the seesaw mechanism that ge nerates neutrino masses is to attribute part of their smallness to a suppr essed vacuum expectation value of a second Higgs doublet as in the neutrin ophilic 2HDM or similar. On that structure we add one charged singlet scal ar to induce a chirally enhanced contribution to (g − 2)μ with the same righthanded neutrinos of the seesaw. We discuss the interplay of generati ng the necessary contribution to the latter with lepton flavor violation w hich is also necessarily brought to low scale. We show that it is possible to explain (g − 2)μ even for heavy neutrino masses of order of a few T eV.\n\nhttp://indico.fuw.edu.pl/contributionDisplay.py?contribId=0&session Id=22&confId=66 LOCATION:University of Warsaw\, Faculty of Physics 1.01 URL:http://indico.fuw.edu.pl/contributionDisplay.py?contribId=0&sessionId= 22&confId=66 END:VEVENT BEGIN:VEVENT SUMMARY:Automatizing validation of Higgs sectors - the case study of 95 Ge V resonance DTSTART;VALUE=DATE-TIME:20230915T123000Z DTEND;VALUE=DATE-TIME:20230915T124500Z DTSTAMP;VALUE=DATE-TIME:20260926T105828Z UID:indico-contribution-22-66@cern.ch DESCRIPTION:Speakers: Dr. KOTLARSKI\, Wojciech (National Centre for Nuclea r Research)\nFlexibleSUSY is a tool allowing to study phenomenology of use r defined (both supersymmetric or not) BSM models. In a recent update we h ave extended it by adding the possibility to compute scalar decays. Buildi ng on that work\, in this talk I will present an interface between Flexibl eSUSY and HiggsTools - a library allowing to confront predictions for Higg s sectors with experimental data. As an application\, I will discuss how a 95 GeV scalar resonance seen in LEP\, CMS and ATLAS data can be accommoda te withing the NMSSM and the Minimal R-symmetric Supersymmetric Standard M odel.\n\nhttp://indico.fuw.edu.pl/contributionDisplay.py?contribId=66&sess ionId=22&confId=66 LOCATION:University of Warsaw\, Faculty of Physics 1.01 URL:http://indico.fuw.edu.pl/contributionDisplay.py?contribId=66&sessionId =22&confId=66 END:VEVENT BEGIN:VEVENT SUMMARY:A smoking gun signature of 3HDM DTSTART;VALUE=DATE-TIME:20230915T114500Z DTEND;VALUE=DATE-TIME:20230915T120000Z DTSTAMP;VALUE=DATE-TIME:20260926T105828Z UID:indico-contribution-22-91@cern.ch DESCRIPTION:Speakers: Dr. DEY\, Atri (Postdoctoral Research Fellow)\nWe an alyze new signals of a 3-Higgs Doublet Model (3HDM) at the Large Hadron Co llider (LHC) where only one doublet acquires a Vacuum Expectation Value (V EV)\, preserving a parity Z2. The other two doublets are inert and do not develop a VEV\, leading to a dark scalar sector controlled by Z2\, with th e lightest CP-even dark scalar H1 being the DM candidate. This leads to th e loop-induced decay of the next-to-lightest scalar\, H2 → H1 l bar{l} ( l = e\, µ)\, mediated by both dark CP-odd and charged scalars. This is a smoking-gun signal of the 3HDM since it is not allowed in the 2HDM with on e inert doublet and is expected to be important when H2 and H1 are close i n mass. In practice\, this signature can be observed in the cascade decay of the SM-like Higgs boson\, h → H1 H2 → H1 H1 l bar{l} into two DM pa rticles and di-leptons/di-jets or h → H2 H2 → H1 H1 l bar{l} l bar{l} into two DM particles and four-leptons/four-jets where h is produced from either gluon-gluon Fusion (ggF) or Vector Boson Fusion (VBF). However\, th e di-lepton signal competes with the tree-level channel q q̄ → H1 H1 Z^ ∗ → H1 H1 l bar{l}. We devise some benchmarks\, with collider\, DM\, a nd cosmological data\, for which the interplay between these modes is disc ussed. In particular\, we show that the resulting detector signature\, mis sing energy + l bar{l} or missing energy + l bar{l} l bar{l} with an invar iant mass of l bar{l} much smaller than mZ\, can potentially be extracted already during Run 2 and 3.\n\nhttp://indico.fuw.edu.pl/contributionDispla y.py?contribId=91&sessionId=22&confId=66 LOCATION:University of Warsaw\, Faculty of Physics 1.01 URL:http://indico.fuw.edu.pl/contributionDisplay.py?contribId=91&sessionId =22&confId=66 END:VEVENT BEGIN:VEVENT SUMMARY:Distinguishing dark matter components in collider signal DTSTART;VALUE=DATE-TIME:20230915T130000Z DTEND;VALUE=DATE-TIME:20230915T131500Z DTSTAMP;VALUE=DATE-TIME:20260926T105828Z UID:indico-contribution-22-8@cern.ch DESCRIPTION:Speakers: Prof. BHATTACHARYA\, Subhaditya (IIT Guwahati)\nIn t his talk\, we show that two WIMPs produced in the decay chains having suff icient mass splitting can yield a double peak in missing energy or missing transverse momentum distribution of multilepton/multijet signal. We argue that these peaks can be distinguished in terms of height and separation b y some carefully crafted kinematic variables. For mono-X signal however\, such double peak behavior arises from different Lorentz structure of the W IMP-SM operators and gets camouflaged by huge non-reducible backgrounds. T o this end we propose to observe bin by bin signal significance distributi on\, which retains the double peak behavior of the signal and indicate the presence of two component dark matter.\n\nhttp://indico.fuw.edu.pl/contri butionDisplay.py?contribId=8&sessionId=22&confId=66 LOCATION:University of Warsaw\, Faculty of Physics 1.01 URL:http://indico.fuw.edu.pl/contributionDisplay.py?contribId=8&sessionId= 22&confId=66 END:VEVENT END:VCALENDAR