EPS-HEP 2025

Session

Poster T09 (Beyond the Standard Model)

9 Jul 2025, 18:47

Espace 1000

379. A measurement of the high-mass tautau production cross-section at sqrt(s) = 13 TeV with the ATLAS detector and constraints on new particles and couplings

Giovanni Padovano (Sapienza Università di Roma & INFN Roma)

09/07/2025, 18:47

T09 - Beyond the Standard Model

Poster

The first measurement of the high-mass ττ production cross section is presented, performed by the ATLAS Collaboration with the dataset of 140 fb-1 of pp collisions at sqrt(s) = 13 TeV. This process is also exploited to constraint new physics models affecting the Standard Model flavour sector. A fit to the τ-lepton pair invariant mass distribution is performed as a function of b-jet...

32. Heavy Higgs boson $H$ production at the future multi-TeV muon collider in the context of the $U(1)_{B-L}$ model

Dr Alejandro Gutierrez-Rodriguez (Universidad Autónoma de Zacatecas)

09/07/2025, 18:47

T09 - Beyond the Standard Model

Poster

The prospects of the Muon Collider promise an unprecedented potential for exploring the particle-physics energy frontier. Furthermore, the physics program from this future collider could provide both high-precision Higgs and Standard Model (SM) measurements and direct production of new particles predicted by various extensions of the SM. With these motivations, we consider the $\mu^+\mu^- \to...

33. Search of the heavy neutral Higgs boson H of the U(1)_{B-L} model at the future multi-TeV $\mu^+\mu^-$ collider

Dr Alejandro Gutíerrez-Rodríguez (Universidad Autónoma de Zacatecas), Maria A. Hernandez-Ruiz (Universidad Autónoma de Zacatecas)

09/07/2025, 18:47

T09 - Beyond the Standard Model

Poster

The possible detection of a heavy neutral Higgs boson $H$ predicted by the $U(1)_{B-L}$ model at the future multi-TeV muon collider for the center-of-mass energies of $\sqrt{s} = 3, 6, 10, 30, 50$ TeV with integrated luminosities of ${\cal L}_{\rm con}=1, 2, 3, 4, 10$ ${\rm ab^{-1}}$ and ${\cal L}_{\rm opt}=90, 250$ ${\rm ab^{-1}}$, is investigated. The following production and decay channels...

465. The LHC as Lepton--Proton Collider: Search for the Resonant Production of Leptoquarks

Daniel Buchin (Max-Planck-Institute for Physics)

09/07/2025, 18:47

T09 - Beyond the Standard Model

Poster

Searches for leptoquarks are a key component of the LHC program probing physics beyond the Standard Model. These hypothetical particles couple to a lepton and a quark and are predicted by many extensions of the Standard Model such as Grand Unified Theories. The existing leptoquark searches at the LHC currently mostly consider production modes via quark and/or gluon interactions. However, the...