Higgs Pairs Workshop 2025

Session

Poster

13 May 2025, 18:20

Sala Elena

Presentation materials

List of poster contributions

103. ATLAS electron and photon energy calibration with Run 3 data

Tao Hsu (Université Paris-Saclay (FR))

Poster

Poster

This poster presents the latest result on ATLAS Run 3 electron and photon in situ energy scale and resolution calibration

104. HL-LHC prospects for the search of boosted Higgs boson pair production via vector-boson fusion in the 4b final state at the ATLAS experiment

Dilia Maria Portillo Quintero (TRIUMF (CA))

Poster

Poster

Projection studies for non-resonant Higgs boson pair production via vector-boson fusion in the 4b final state with the luminosity-upgraded ATLAS detector at the High Luminosity LHC (HL-LHC) are presented. These studies are the first HL-LHC prospects on the boosted di-Higgs topology, where each Higgs boson is constructed as a single large-radius jet. The latest Run 2 analysis results using 140...

5. Probing exotic Higgs decays to 4$\tau$ in single and di-Higgs production at the HL-LHC and FCC-hh

Camellia Bose (Indian Institute of Science)

Poster

Poster

We study the prospects for observing exotic decays of the Standard Model (SM) Higgs boson $h$ into light beyond the Standard Model (BSM) scalars $a$ with mass $m_{a} \lesssim m_{h}/2$ in the single Higgs and Higgs pair production channels at the High Luminosity run of the Large Hadron Collider (HL-LHC). Discovery prospects for single Higgs production in the gluon-gluon fusion and vector boson...

31. Search for Higgs boson pairs with multi-lepton final states in pp collisions at √s = 13 TeV with the ATLAS detector

Rea Thornberry (Southern Methodist University (US))

Poster

Poster

A search is presented for non-resonant Higgs boson pair production decaying to multi-lepton final states using 140 fb-1 of proton-proton collision data at centre-of-mass energy 13 TeV, recorded with the ATLAS detector during Run 2 of the LHC. Nine search channels with varying multiplicities of electrons, muons, taus, and photons are combined to determine the observed (expected) limit on the...

47. Studies of boosted topology for the non-resonant HH search in bbττ and bbγγ final states

Yibo Zhong (Purdue University (US))

Poster

Poster

The study of boosted Higgs boson pair (HH) production enables the development of advanced reconstruction and identification techniques crucial for probing the Higgs self-coupling and potential new physics beyond the Standard Model. In this work, we focus on methodologies for analyzing the boosted topology, where one Higgs boson is produced with high transverse momentum, leading to collimated...

36. Study of a Kinematic Fit algorithm for the HH->bbyy channel at the ATLAS detector

Romano Orlandini (Universita e INFN Roma Tre (IT))

Poster

Poster

The search for Higgs bosons pairs, produced at the LHC, is a fundamental step for the study and understanding of the Higgs field potential, responsible for the spontaneous breaking of the electro-weak symmetry. In fact, the observation of this rare phenomenon would allow us to have an estimate of the cubic term of the potential. However, due to the low number of expected events, many efforts...

27. Towards full EW corrections to Higgs pair production

Augustin Vestner

Poster

Poster

With the upcoming HL-LHC and the increased experimental precision, the calculation of electroweak corrections to Higgs boson pair production in gluon fusion is important for sufficiently precise theory predictions. This talk will present recent results regarding Yukawa and Higgs self-coupling induced corrections and discuss the status of our calculation including gauge bosons.

102. Updated measurement prospects for di-Higgs production in the HH->2b2y channel with the ATLAS experiment at the HL-LHC

Alex Zeng Wang (University of California,Santa Cruz (US))

Poster

Poster

We present an updated prospect study on di-Higgs production in the HH→bbγγ decay channel with the ATLAS experiment at the High Luminosity LHC (HL-LHC). The latest projections are based on extrapolating the recent legacy Run 2 ATLAS search and therefore improve over the previous results shown

101. Using Boosted Decision Trees based event categorization to target SM and BSM HH->2b2y at ATLAS

Punit Sharma (Brookhaven National Laboratory (US))

Poster

Poster

In this poster, we present a study of di-Higgs production in the HH→bbγγ decay channel using data from the ATLAS experiment. This channel is considered one of the "golden channels" for constraining the Higgs self-coupling, benefiting from the high branching ratio of the H→bb decay and the excellent ATLAS photon triggers. The analysis employs Boosted Decision Trees (BDTs) to define event...