BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CERN//INDICO//EN
BEGIN:VEVENT
SUMMARY:Limiting FCNC in CP4 3HDM
DTSTART;VALUE=DATE-TIME:20230915T123000Z
DTEND;VALUE=DATE-TIME:20230915T124500Z
DTSTAMP;VALUE=DATE-TIME:20260427T011926Z
UID:indico-contribution-15-38@cern.ch
DESCRIPTION:Speakers: Mr. ZHAO\, Duanyang (School of Physics and Astronomy
 \, Sun Yat-sen University)\nCP4 3HDM is a three-Higgs-doublet model based 
 on the CP symmetry of order 4 (CP4). In Yukawa sector\, there are eight po
 ssible scenarios satisfying CP4 symmetry. Similar to other multi-Higgs mod
 els\, Yukawa sectors unavoidably induce tree-level flavor-changing neutral
  couplings (FCNC)\, meson oscillation parameters strongly constraint FCNC.
  In this work\, we explore whether FCNC can be sufficiently suppressed in 
 all possible scenarios. We develop an inversion scanning procedure which t
 akes the quark masses and mixing as input and expresses the FCNC matrices 
 in terms of physical quark observables and quark rotation parameters. The 
 inversion scanning procedure is more efficient than usual scanning procedu
 re. We find that only two scenarios are compatible with the K\, B\, Bs
  and D-meson oscillation constraints. These two scenarios deserve to per
 form a full scan with scalar sector in the future.\n\nhttp://indico.fuw.ed
 u.pl/contributionDisplay.py?contribId=38&sessionId=15&confId=66
LOCATION:University of Warsaw\, Faculty of Physics 0.06
URL:http://indico.fuw.edu.pl/contributionDisplay.py?contribId=38&sessionId
 =15&confId=66
END:VEVENT
BEGIN:VEVENT
SUMMARY:Basis-covariant conditions for custodial symmetry in multi-Higgs d
 oublet models
DTSTART;VALUE=DATE-TIME:20230915T121500Z
DTEND;VALUE=DATE-TIME:20230915T123000Z
DTSTAMP;VALUE=DATE-TIME:20260427T011926Z
UID:indico-contribution-15-20@cern.ch
DESCRIPTION:Speakers: Mr. PLANTEY\, Robin (NTNU)\nDetecting symmetries in 
 multi-Higgs doublet models (NHDM) is a challenge due to the basis freedom 
 of these models. To overcome this\, a formalism based on relations among b
 asis-covariant objects has recently been tried in the 3HDM. Within this fr
 amework we show using representation theory that simple necessary and suff
 icient conditions for custodial symmetry\, verifiable in any basis\, can b
 e derived for $N\\geq 3$ doublets.\n\nhttp://indico.fuw.edu.pl/contributio
 nDisplay.py?contribId=20&sessionId=15&confId=66
LOCATION:University of Warsaw\, Faculty of Physics 0.06
URL:http://indico.fuw.edu.pl/contributionDisplay.py?contribId=20&sessionId
 =15&confId=66
END:VEVENT
BEGIN:VEVENT
SUMMARY:A superconducting phase of the N2HDM
DTSTART;VALUE=DATE-TIME:20230915T113000Z
DTEND;VALUE=DATE-TIME:20230915T114500Z
DTSTAMP;VALUE=DATE-TIME:20260427T011926Z
UID:indico-contribution-15-16@cern.ch
DESCRIPTION:Speakers: SHER\, Marc (William and Mary)\nThe N2HDM has two do
 ublets and a real singlet.   If one abandons the Z2 symmetry under which t
 he singlet is odd\, then there is a region of parameter space in which the
 re is a phase during the electroweak transitions in which U(1)_em is broke
 n.    This leads (temporarily) to a photon mass and charge nonconservation
 \, which implies W-photon\, top-bottom and neutrino-electron mixing (and e
 ven leads to Majorana electrons).   We study the phase transitions in the 
 model and discuss the implications for electroweak baryogenesis and for gr
 avitational wave production.\n\nhttp://indico.fuw.edu.pl/contributionDispl
 ay.py?contribId=16&sessionId=15&confId=66
LOCATION:University of Warsaw\, Faculty of Physics 0.06
URL:http://indico.fuw.edu.pl/contributionDisplay.py?contribId=16&sessionId
 =15&confId=66
END:VEVENT
BEGIN:VEVENT
SUMMARY:Lepton flavor specific extended Higgs model
DTSTART;VALUE=DATE-TIME:20230915T124500Z
DTEND;VALUE=DATE-TIME:20230915T130000Z
DTSTAMP;VALUE=DATE-TIME:20260427T011926Z
UID:indico-contribution-15-23@cern.ch
DESCRIPTION:Speakers: Mr. GONÇALVES\, Bernardo (CFTP/IST)\nIn extended Hi
 ggs models\, a discrete symmetry is needed in the quark sector to avoid tr
 ee-level flavor-changing neutral currents. However\, this is not necessari
 ly the case in the lepton sector. We consider a model in which one Higgs c
 ouples to quarks and three others couple to the electron\, muon\, and tau\
 , respectively. This four-doublet model is presented with the full scalar 
 potential and the gauge and Yukawa couplings. The constraints from bounded
 ness\, perturbativity and oblique parameters are incorporated as well as c
 onstraints from meson-antimeson mixing\, radiative B-decays\, and the diph
 oton Higgs decay rate. We also consider bounds from searches for heavy neu
 tral and charged scalars at the LHC. Since the Standard Model Higgs coupli
 ngs match predictions very well\, we focus on the alignment limit of the m
 odel. It is shown that for a wide range of parameters\, the lightest addit
 ional scalar\, pseudoscalar and charged scalar can have substantial decays
  into electrons and muons (in contrast to the usual leptonic decays into t
 aus). An interesting signature in the neutral sector would be the producti
 on\, through vector boson fusion\, of a pair of scalars\, each of which de
 cays into an electron or muon pair.\n\nhttp://indico.fuw.edu.pl/contributi
 onDisplay.py?contribId=23&sessionId=15&confId=66
LOCATION:University of Warsaw\, Faculty of Physics 0.06
URL:http://indico.fuw.edu.pl/contributionDisplay.py?contribId=23&sessionId
 =15&confId=66
END:VEVENT
BEGIN:VEVENT
SUMMARY:On softly broken symmetries in the 2HDM and the discovery of new s
 ymmetries
DTSTART;VALUE=DATE-TIME:20230915T120000Z
DTEND;VALUE=DATE-TIME:20230915T121500Z
DTSTAMP;VALUE=DATE-TIME:20260427T011926Z
UID:indico-contribution-15-56@cern.ch
DESCRIPTION:Speakers: Mr. OGREID\, Odd Magne (Western Norway University of
  Applied Sciences)\nConditions for soft breaking of the six symmetries (CP
 1\, CP2\, CP3\, Z_2\, U(1) and SO(3)) of the 2HDM potential were formulate
 d in terms of 11 physical parameters consisting of masses and couplings. T
 his led to the discovery of hitherto  unknown symmetries of the 2HDM poten
 tial. A transformation into imgaginary space-time leaves the potential as 
 well as the kinetic terms of the Lagrangian invariant.\n\nhttp://indico.fu
 w.edu.pl/contributionDisplay.py?contribId=56&sessionId=15&confId=66
LOCATION:University of Warsaw\, Faculty of Physics 0.06
URL:http://indico.fuw.edu.pl/contributionDisplay.py?contribId=56&sessionId
 =15&confId=66
END:VEVENT
BEGIN:VEVENT
SUMMARY:Anomaly-free axion and heavy Higgs bosons in 3HDM
DTSTART;VALUE=DATE-TIME:20230915T114500Z
DTEND;VALUE=DATE-TIME:20230915T120000Z
DTSTAMP;VALUE=DATE-TIME:20260427T011926Z
UID:indico-contribution-15-29@cern.ch
DESCRIPTION:Speakers: Dr. SAKURAI\, Kodai (U. of Warsaw / Tohoku U.)\nAxio
 n is one of the prominent candidates of dark matter (DM). \nIn particular\
 , the axion in the keV scale is phenomenologically interesting. \nBecause 
 given that the axion has an interaction with electrons\, it can be probed 
 by electron recoil events in DM direct detection experiments. \nWe constru
 ct a concrete renormalizable model that predicts axion DM in keV scale\, t
 hree Higgs doublet model with B-L Higgs bosons. \nThe predicted axion is a
 nomaly-free\, so that severe constraints from X-ray observation can be eva
 ded.\nIn this talk\, we discuss the properties of the anomaly-free axion.\
 nWe then show the properties of the axion correlate with those of heavy Hi
 ggs bosons.\n\nhttp://indico.fuw.edu.pl/contributionDisplay.py?contribId=2
 9&sessionId=15&confId=66
LOCATION:University of Warsaw\, Faculty of Physics 0.06
URL:http://indico.fuw.edu.pl/contributionDisplay.py?contribId=29&sessionId
 =15&confId=66
END:VEVENT
BEGIN:VEVENT
SUMMARY:A Bayesian global analysis of the spectrum of scalars in the A2HDM
DTSTART;VALUE=DATE-TIME:20230915T130000Z
DTEND;VALUE=DATE-TIME:20230915T131500Z
DTSTAMP;VALUE=DATE-TIME:20260427T011926Z
UID:indico-contribution-15-5@cern.ch
DESCRIPTION:Speakers: COUTINHO\, Antonio (IFIC\, U. Valencia-CSIC)\nTwo-Hi
 ggs-doublet models are among the simplest extensions to the Standard Model
  (SM). The augmented parameter space that comes with the addition of a sec
 ond Higgs doublet allows them to possibly solve some of the shortcomings o
 f the SM\, and opens the window to a plethora of new phenomena to be disco
 vered. The introduction of scalar-mediated tree-level flavour-changing neu
 tral currents may be tackled with the imposition of extra symmetries on th
 e model or\, alternatively\, by demanding a strict proportionality between
  those flavour-changing couplings and fermion mass matrices. The latter is
  the very idea behind the Aligned-two-Higgs-doublet model (A2HDM). The coe
 fficients that govern such proportionality are\, in general\, complex and\
 , therefore\, possible new sources of CP violation\, a calling card of thi
 s class of models. We present here a new state-of-the-art global analysis 
 of the A2HDM. To this effect\, we simultaneously make use of theoretical c
 onstraints\, bounds from Higgs searches at the LHC and LEP\, electroweak p
 recision observables\, and a set of flavour observables\, all within the B
 ayesian Markov Chain Monte Carlo framework of the HEPfit software. In part
 icular\, we ascertain whether current data still allows the A2HDM to accom
 modate an extra scalar lighter than the SM Higgs boson.\n\nhttp://indico.f
 uw.edu.pl/contributionDisplay.py?contribId=5&sessionId=15&confId=66
LOCATION:University of Warsaw\, Faculty of Physics 0.06
URL:http://indico.fuw.edu.pl/contributionDisplay.py?contribId=5&sessionId=
 15&confId=66
END:VEVENT
BEGIN:VEVENT
SUMMARY:Scalar Triplet Explanation of the 95 GeV di-Photon Excess
DTSTART;VALUE=DATE-TIME:20230915T131500Z
DTEND;VALUE=DATE-TIME:20230915T133000Z
DTSTAMP;VALUE=DATE-TIME:20260427T011926Z
UID:indico-contribution-15-70@cern.ch
DESCRIPTION:Speakers: BANIK\, Sumit (University of Zurich &amp\; PSI)\nI d
 iscuss the SU(2) triplet extension of the Standard Model as the origin of 
 the 95 GeV di-photon excess. We show that for a small mixing angle with th
 e Standard Model Higgs\, the neutral component of the triplet has a sizabl
 e branching ratio to γγ. Consequently\, we make several precise predicti
 ons: 1) a positive shift in the mass of the W-boson\, 2) associated produc
 tion of photons alongside tau leptons and jets\, 3) the presence of a char
 ged Higgs boson giving a stau-like signal\, and 4) a broad spectrum of the
  transverse momentum of the di-photon pair.\n\nhttp://indico.fuw.edu.pl/co
 ntributionDisplay.py?contribId=70&sessionId=15&confId=66
LOCATION:University of Warsaw\, Faculty of Physics 0.06
URL:http://indico.fuw.edu.pl/contributionDisplay.py?contribId=70&sessionId
 =15&confId=66
END:VEVENT
END:VCALENDAR