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    Journées de Rencontre Jeunes Chercheur·se·s 2026

    22–28 nov. 2026
    Fuseau horaire Europe/Paris

    Secrétariat

    Liste des Contributions

    59 sur 59 affichés
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    1. 71. Session overview
      Bruna Osorio Pascual (Laboratoire de Physique Clermont-Auvergne (LPCA))
      23/11/2026 09:25
    2. 90. Talk SM #1
      Omar ISTAITIA (IJCLab)
      23/11/2026 09:55
    3. 92. Talk SM #3
      William Roth (LPNHE)
      23/11/2026 10:50
    4. 93. Talk SM #4
      Mlle Hind Taibi
      23/11/2026 11:15
    5. 101. Talk SM #5
      Nicolas Cartalade
      23/11/2026 11:40
    6. 96. Latest HL-LHC b-tagging developments and expected impact on di-Higgs sensitivity
      Vincenzo Triglione (CPPM, Aix-Marseille Université, CNRS/IN2P3 (FR))
      23/11/2026 12:05
      Standard Model
      Standard Model

      The High-Luminosity Large Hadron Collider (HL-LHC) will open new opportunities for the study of rare processes, including Higgs boson pair (di-Higgs) production. Flavour tagging will play a central role in enabling these measurements. This talk presents the expected challenges for flavour tagging in the HL-LHC environment, characterized by unprecedented instantaneous luminosity, high pile-up...

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    7. 100. Abbay visit
      23/11/2026 14:00
    8. 102. Talk SM #6
      M. Tom FOURNIER (APC Paris CNRS/IN2P3)
      23/11/2026 15:00
    9. 91. Talk SM #2
      Mlle Eléa Paquis (LPSC-Grenoble CNRS/IN2P3)
      23/11/2026 15:25
    10. 72. Session overview
      Quentin Bonnefoy (Uni. de Strasbourg & IPHC)
      23/11/2026 15:50
    11. 99. Piezoaxionic Detection of Axion Dark Matter with Precessing Nuclear Spins
      Baraa Yahya (IPhT (CEA-SACLAY))
      23/11/2026 16:50
      Theory
      Theory

      The piezoaxionic effect enables the conversion of axion-induced spin-dependent forces in polarized nuclei into measurable voltages in piezoelectric crystals. We propose a heterodyne detection scheme in which controlled nuclear spin precession mixes the axion oscillation frequency with the nuclear Larmor frequency. This generates sideband signals at shifted frequencies, allowing efficient...

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    12. 122. Axion production in core-collapse supernovae
      BASILE DEMAIRE-LEPAPE
      23/11/2026 17:15
      Theory
      Theory

      During the gravitational collapse of a massive star, the proto-neutron-star core reaches extreme densities and temperatures, providing an environment in which QCD axions can be efficiently produced through their interactions with baryonic matter. Axion emission may contribute significantly to the cooling of the newly formed neutron star, and observations of supernova cooling, in particular...

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    13. 136. Is the spherical profile enough for gamma-ray dark matter indirect searches?
      Margherita Scuderi (Laboratoire de physique théorique et hautes énergies (LPTHE), Sorbonne université)
      23/11/2026 17:40
      Theory
      Theory

      Recent results from Galactic surveys, such as Gaia, and from hydrodynamical cold dark matter simulations of Milky Way-like galaxies have shown that the galactic dark matter halo likely deviates from spherical symmetry. Its shape and orientation may constitute an additional significant source of uncertainty for indirect dark matter searches. In this work we develop a fast and light...

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    14. 73. Session overview
      Daniel Kerszberg (LPNHE, CNRS/IN2P3)
      24/11/2026 09:00
    15. 80. Talk Astro #1
      Lukas Arda (APC Paris)
      24/11/2026 09:30
    16. 81. Talk Astro #2
      David Fernando Freitas da Silva Cavalcante (APC (Université Paris Cité))
      24/11/2026 09:55
    17. 104. Talk Astro #4
      Justin Albinet
      24/11/2026 10:50
    18. 106. Talk Astro #5
      titouan girault (IRFU, CEA Paris-Saclay, Université Paris-Saclay)
      24/11/2026 11:15
    19. 123. Cherenkov background for high-mass WIMP searches with DarkSide-20k
      Manuel Pronesti (CPPM, Aix-Marseille Université, CNRS/IN2P3)
      24/11/2026 11:40
      Astroparticle
      Astroparticle

      The existence of dark matter is firmly established by astrophysical and cosmological observations, yet its particle nature remains one of the most compelling open questions in physics. Among the proposed candidates, Weakly Interacting Massive Particles (WIMPs) are particularly well motivated by the so-called “WIMP miracle”: a weakly interacting, stable particle with electroweak-scale mass...

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    20. 128. Talk Astro #6
      Pierre Geneste (CEA-IRFU-DPhP)
      24/11/2026 12:05
    21. 129. Talk Astro #7
      Ugo LAINÉ (Subatech-KM3NeT), Ugo Lainé (Subatech-KM3NeT)
      24/11/2026 14:00
    22. 103. Talk Astro #3
      Mulan Ahmed (IJCLap)
      24/11/2026 14:25
    23. 74. Session overview
      Tommaso Fulghesu (Aix Marseille Univ, CNRS/IN2P3, CPPM, Marseille, France)
      24/11/2026 14:50
    24. 83. Talk Flavour #1
      Valério Di Bella (IPHC)
      24/11/2026 15:20
    25. 107. Talk Flavour #2
      Fatemeh NOURI (IJCLab), Fatemeh Nouri (IJCLab, Paris-Saclay)
      24/11/2026 15:45
    26. 75. Session Overview
      Emile Lavaut (IPHC CNRS)
      24/11/2026 16:40
    27. 110. Talk Neutrino #6
      Gaby BRENOT
      24/11/2026 17:10
    28. 111. Talk Neutrino #7
      Matteo Loup (APC)
      24/11/2026 17:35
    29. 121. Precision Measurement of Oscillation Parameters and Determination of the Mass Order of Neutrinos in the JUNO Experiment
      Mathis Roinsard (Subatech)
      25/11/2026 09:00
      Neutrino physics
      Neutrino physics

      Neutrinos are among the most abundant particles in the Universe, yet remain some of the least understood. We discovered only recently they have mass, thanks to a phenomenon called “neutrino oscillation”. Neutrinos can exist in different states, called flavors, and each flavor is a combination of different three mass states. One open question concerns the ordering of these mass states. The...

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    30. 88. Talk Neutrino #2
      Dario Pullia (APC, CERN)
      25/11/2026 09:25
    31. 126. SPMT energy and timing calibration for CCSN neutrinos with JUNO experiment
      Jonas Buchholz (Université de Bordeaux)
      25/11/2026 09:50
      Neutrino physics
      Neutrino physics

      The JUNO experiment is a 20 kton liquid scintillator detector, designed primarily to determine the neutrino mass ordering within the next few years. Its large size also makes it well suited to detect neutrinos from the next galactic core-collapse supernova (CCSN). Such an event would be a unique opportunity to understand the mechanisms behind CCSNe, which are not yet fully understood. The only...

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    32. 108. Talk Neutrino #4
      Ben Carew (LPNHE), Benjamin Carew (LPNHE)
      25/11/2026 10:45
    33. 76. Session Overview
      25/11/2026 11:10
    34. 112. Talk hadronic #1
      Emma Weiler
      25/11/2026 11:40
    35. 132. Talk hadronic #2
      Sacha MEHAT (IJCLAB)
      25/11/2026 12:05
    36. 113. Visite to Dinan
      25/11/2026 13:45
    37. 77. Session Overview
      Anna Niemiec (LPSC)
      26/11/2026 09:00
    38. 127. High angular resolution Sunyaev-Zel’dovich effect observations of galaxy cluster
      Victor Chalamet (LPSC)
      26/11/2026 09:30
      Cosmology
      Cosmology

      Galaxy cluster are the most massive gravitationally bound structures in the Universe, thus, they are of great cosmological interest. Indeed, their mass and redshift distribution can be used to constrain cosmological parameters.
      In order to study clusters we can use the thermal Sunyaev-Zel'dovich (tSZ) effect that is produced by the inverse Compton interaction of CMB photons with the hot gas...

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    39. 116. Talk Cosmo #4
      Théotime Hallouin (LPCA/CNRS)
      26/11/2026 09:55
    40. 124. Measuring the Expansion of the Universe with Gravitational Waves
      Maxime Bloch (Subatech (UMR 6457))
      26/11/2026 10:50
      Cosmology
      Cosmology

      Gravitational waves were predicted in 1916 by Albert Einstein through his theory of general relativity. A century later, on 14 September 2015, the first signal was detected by the LIGO-Virgo Collaboration through interferometric measurements of spacetime distortions produced by the coalescence of two compact objects$^{[1]}$.

      This new observational window on the Universe has opened the door...

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    41. 131. Talk Cosmo #5
      Eva Elkhoury (Qubic), Eva Elkhoury (APC)
      26/11/2026 11:15
    42. 97. 3x2pt Cosmology with Euclid
      Urwa Shoaib
      26/11/2026 11:40
      Cosmology
      Cosmology

      Galaxy clustering allows the study of galaxy distribution across the Universe, revealing critical insights into the structure of the Universe, its dynamics and the nature of dark energy. On the other hand, weak lensing enables the inference of dark matter distribution by analyzing the deformation of background galaxies by foreground masses.

      The 3x2pt method, which combines galaxy...

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    43. 85. Session Overview
      Rachel Delorme (LPSC, Grenoble)
      26/11/2026 12:05
    44. 119. Invited talk
      26/11/2026 14:00
    45. 86. Talk Interdisciplinary #1
      Louis Hardouin
      26/11/2026 15:00
    46. 135. Talk Interdisc. #2
      Violette GUITTET
      26/11/2026 15:25
    47. 78. Session Overview
      Angela Burger (L2I Toulouse, CNRS/IN2P3, Université de Toulouse)
      26/11/2026 15:50
    48. 117. Talk BSM #2
      Melvyn Putra Wirawan
      26/11/2026 16:55
    49. 82. Talk BSM #1
      Xavier MADRE (IPHC)
      26/11/2026 17:20
    50. 125. SPELS@WISArD : Spectrum of 32P ELectron Shape at WISArD
      Anaïs LEPINE
      26/11/2026 17:45
      Nuclear Physics
      Beyond Standard Model

      Author: Ana¨ıs L´epine, LP2iB, on behalf of the WISArD collaboration
      The Standard Model (SM) of particle physics has proven to be a successful
      theory describing three of the four fundamental interactions. However, some
      open questions remain and motivate precise measurements to search for evidence
      of physics beyond the SM predictions. Nuclear β-decay provides a sensitive
      probe of the weak...

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    51. 79. Session Overview
      Marion Missio (Université Clermont Auvergne)
      27/11/2026 10:45
    52. 84. Talk Instru #1
      Augustin DEMAGNY
      27/11/2026 11:15
    53. 98. Analysis of HGCAL timing performance in the 2025-2026 testbeam campaign at CERN
      Ewan Heeder (CEA Paris-Saclay)
      27/11/2026 11:40
      Instrumentation
      Instrumentation

      The High-Luminosity phase of the Large Hadron Collider (HL-LHC), is expected to start in 2030. It will bring around a 2.5-to-4-fold increase in instantaneous luminosity, raising pileup up to 200 collisions per bunch crossing and increasing radiation damage to the detectors. To cope with this pileup and replace aging components, several subdetectors of the major experiments must be upgraded...

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    54. 87. Talk Instru #6
      Mariya Mollova (APC-Paris)
      27/11/2026 12:05
    55. 120. Performance Studies and Optimization of the Backward Electromagnetic Calorimeter for the ePIC Detector at the Electron–Ion Collider
      Chun-Ting Kuan
      27/11/2026 14:00
      Instrumentation
      Instrumentation

      The Relativistic Heavy Ion Collider (RHIC) will be revamped as the Electron-Ion Collider (EIC), and the STAR detector will be replaced by the ePIC detector. We are developing backward electromagnetic calorimeters (ECal) to meet the energy-resolution requirements listed in the EIC Yellow Report. The energy resolution of the backward ECal prototype was measured during a beam test at the...

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    56. 133. Talk Instru #4
      Veronica CAZZOLA (LPNHE)
      27/11/2026 14:25
    57. 134. Talk Instru #5
      Amélie CLÉMENT (LP2IB)
      27/11/2026 14:50
    58. 118. Talk Instru #3
      Anas Basheer (anas.basheer@univ-lille.fr)
      27/11/2026 15:15
    59. 95. Session Overview