Marco Valente

Hello! I am a Research Scientist at TRIUMF, Canada's particle accelerator centre. My research focuses on the searches for new physics carried out by the ATLAS experiment, one of the four main physics experiments of the Large Hadron Collider (LHC) at the European Organization for Nuclear Research (CERN). This webpage illustrates my research, teaching and outreach activities. Further details about my research interests are provided below in the research tab. For any additional enquire about my work, do not hesitate to contact me following the informations provided in the contact section below!

Research interests:

di-Higgs production Jet/b-jet triggers Jet/ETmiss Silicon detectors Supersymmetry Future colliders

Research

Despite the extremely precise description of subatomic phenomena provided by the Standard Model, several questions of physics are still open today such as the origin of Dark Matter, the matter-antimatter asymmetry of the universe and the unification of elementary forces at high energy. Look for answers to these questions defines my research activities at the ATLAS experiment. These activities include:

Searches for Higgs-boson pair production and supersymmetric particles in hadronic final states.
Reconstruction and triggering of jets and Jet/ETmiss.
Detector upgrades and physics projections for the High Luminosity LHC.
Future particle colliders and detectors.

Figure 1: Tri-linear Higgs self-coupling diagram.

Figure 2: Sketch of a hadronic jet resulting from a pp collision of the LHC (Credits: CMS Collaboration).

Figure 3: Supersymmetric event candidate reconstructed with 16 jets and collected during the second Run of the LHC (2016).

Figure 4: Combined ATLAS exclusion limits of ggF di-Higgs production cross-section with respect to Higgs self-coupling strength $\kappa_\lambda$. — Figure 4: Combined ATLAS exclusion limits of ggF di-Higgs production cross-section with respect to Higgs self-coupling strength $\kappa_\lambda$ .

Publications All Publications »

ORCID INSPIRE

Journal Papers

Phys. Lett. B di-Higgs production "Search for pair production of boosted Higgs bosons via vector-boson fusion production in the $b\bar{b}b\bar{b}$ final state using $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector", The ATLAS Collaboration, Submitted to Phys. Lett. B, Apr. 2024. arXiv:2404.17193 CDS:2896502 .
JINST Jet/b-jet triggers "The ATLAS Trigger System for LHC Run 3 and Trigger performance in 2022", The ATLAS Collaboration, JINST 19 (2024) P06029, Jan. 2024. arXiv:2401.06630 DOI:10.1088/1748-0221/19/06/P06029 CDS:2886407
Phys. Rev. D Supersymmetry "Search for pair production of higgsinos in events with two Higgs bosons and missing transverse momentum in $\sqrt{s}= 13$ TeV pp collisions at the ATLAS experiment", The ATLAS Collaboration, Phys. Rev. D 109, 112011, Jan. 2024 arXiv:2401.14922 DOI:10.1103/PhysRevD.109.112011 CDS:2887688
JINST Jet/b-jet triggers "Fast b-tagging at the high-level trigger of the ATLAS experiment in LHC Run 3", The ATLAS Collaboration, JINST 18 (2023) 11, P11006, Nov. 2023 arXiv:2306.09738 DOI:10.1088/1748-0221/18/11/P11006 CDS:2862499
Phys. Rev. D di-Higgs production "Search for non-resonant pair production of Higgs bosons in the $b\bar{b}b\bar{b}$ final state in $pp$ collisions at $\sqrt{s}= 13$ TeV with the ATLAS detector", The ATLAS Collaboration, Phys. Rev. D 108 (2023) 052003, Sep. 2023 arXiv:2301.03212 DOI:10.1103/PhysRevD.108.052003 CDS:2845544
Phys. Rev. D di-Higgs production "Search for resonant pair production of Higgs bosons in the $b\overline{b}b\overline{b}$ final state using $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector", The ATLAS Collaboration, Phys. Rev. D 105, 092002. (2022) arXiv:2202.07288 DOI:10.1103/PhysRevD.105.092002 CDS:2801590
JHEP Supersymmetry "Search for new phenomena in final states with large jet multiplicities and missing transverse momentum using $\sqrt{s}=13$ TeV proton−proton collisions recorded by ATLAS in Run 2 of the LHC", The ATLAS Collaboration, J. High Energ. Phys. 2020, 34 (2020). arXiv:1708.02794 DOI:10.1007/JHEP10(2020)062 CDS:2728000

ATLAS Public Documents

ATL-PHYS-PUB-2022-053 di-Higgs production HL-LHC "HL-LHC prospects for the measurement of Higgs boson pair production in the $b\bar{b}b\bar{b}$ final state and combination with the $b\bar{b}\gamma\gamma$ and $b\bar{b}\tau^+\tau^-$ final states at the ATLAS experiment", The ATLAS Collaboration, Nov. 2022. CDS:2841244.
ATL-PHYS-PUB-2022-018 CMS-PAS-FTR-22-001 di-Higgs production HL-LHC "Snowmass White Paper Contribution: Physics with the Phase-2 ATLAS and CMS Detectors", The ATLAS and CMS Collaborations, Mar. 2022, CDS:2805993 (ATLAS), CDS:2806962 (CMS).
ATLAS-CONF-2021-052 di-Higgs production "Combination of searches for non-resonant and resonant Higgs boson pair production in the $b\bar{b}\gamma\gamma$ , $b\bar{b}\tau^{+}\tau^{-}$ and $b\bar{b}b\bar{b}$ decay channels using $pp$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector", The ATLAS Collaboration, Oct. 2021, CDS:2786865.
ATL-PHYS-PUB-2021-023 HL-LHC "Expected performance of the ATLAS detector under different High-Luminosity LHC conditions", The ATLAS Collaboration, Jul. 2021, CDS:2776650.
ATLAS-CONF-2018-023 Jet/ETmiss " $E_{\text{T}}^{\text{miss}}$ performance in the ATLAS detector using 2015-2016 LHC p-p collisions", The ATLAS Collaboration, Jun. 2018, CDS:2625233.
ATLAS-CONF-2018-003 Supersymmetry "Reinterpretation of searches for supersymmetry in models with variable R-parity-violating coupling strength and long-lived R-hadrons", The ATLAS Collaboration, Mar. 2018, CDS:2308391.
ATLAS-TDR-029 HL-LHC Triggers "Technical Design Report for the Phase-II Upgrade of the ATLAS Trigger and Data Acquisition (TDAQ) System", The ATLAS Collaboration, Sep. 2017, CDS:2285584.
ATLAS-CONF-2016-095 Supersymmetry "Pursuit of new phenomena in final states with high jet multiplicity, high jet masses and missing transverse momentum with ATLAS at $\sqrt{s} = 13$ TeV", The ATLAS Collaboration, Sep. 2016, CDS:2212161.

Conference proceedings

Proc. of Science HL-LHC Triggers "The ATLAS Trigger and Data Acquisition Upgrades for the High-Luminosity LHC (HL-LHC)", M. Valente (ATLAS Collaboration), Proceedings of European Physical Society Conference on High Energy Physics PoS (EPS-HEP2019), 2019. DOI:10.22323/PoS(2020)1.364.0184 CDS:2692161

Books

Springer "Supersymmetric Beasts and Where to Find Them, From Novel Hadronic Reconstruction Methods to Search Results in Large Jet Multiplicity Final States at the ATLAS Experiment", M. Valente, Springer Nature AG, Switzerland, 2022. ISBN: 978-3-030-94047-8 DOI:10.1007/978-3-030-94047-8

Others

FERMILAB-FN-1185-AD-ND-PPD-TD Future colliders "Simulated Detector Performance at the Muon Collider", The International Muon Collider Collaboration. Aug. 2022. arXiv:2203.07964 CDS:2824768
CERN-OPEN-2020-006 Future colliders "Report on the ECFA Early-Career Researchers Debate on the 2020 European Strategy Update for Particle Physics", N. Andari et al., Feb. 2020. arXiv:2002.02837 CDS:2708708

Presentations

Selected Talks

HIGGS2023 di-Higgs production "Non-resonant HH searches: status and prospects (ATLAS+CMS)", M. Valente (ATLAS Collaboration), HIGGS2023, CDS:2883579.
HIGGS2021 di-Higgs production "di-Higgs production results - twice the Higgs, twice the fun", M. Valente (ATLAS Collaboration), HIGGS2021, CDS:2788852.
PHENO 2020 Supersymmetry "Searches for strong production of supersymmetric particles with the ATLAS detector ", M. Valente (ATLAS Collaboration), Phenomenology Symposium 2020 (PHENO 2020), CDS:2717500.
SUSY 2018 Jet/ETmiss HL-LHC "Performance of Jet/ETmiss reconstruction in High Pileup", M. Valente (ATLAS Collaboration), 26th International Conference on Supersymmetry and Unification of Fundamental Interactions (SUSY 2018), CDS:2632860.

Selected posters

TIPP 2021 Silicon detectors "Testbeam studies of ATLAS ITk strip modules at DESY-II testbeam facility", M. Valente (ATLAS Collaboration), International Conference on Technology and Instrumentation in Particle Physics (TIPP 2021).
EPS-HEP 2019 Triggers HL-LHC "ATLAS Trigger and Data Acquisition Upgrades for the High Luminosity LHC", M. Valente (ATLAS Collaboration), European Physical Society Conference on High Energy Physics (EPS-HEP) 2019, CDS:2683456.
LHCC 2017 Jet/ETmiss "Performance of Jet/ETmiss reconstruction with the ATLAS detector", M. Valente (ATLAS Collaboration), Large Hadron Collider Experiments Committee (LHCC 2017), CDS:2253140.