Bulletin of the American Physical Society
APS April Meeting 2021
Volume 66, Number 5
Saturday–Tuesday, April 17–20, 2021; Virtual; Time Zone: Central Daylight Time, USA
Session L02: Wilson Prize Award CeremonyInvited Live Prize/Award
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Sponsoring Units: DPB DPF Chair: Joel Butler, Fermilab; Sarah Cousineau, ORNL |
Sunday, April 18, 2021 3:45PM - 4:07PM Live |
L02.00001: Laser-acceleration and all-optical structuring of energetic proton beams from renewable cryogenic hydrogen jets Invited Speaker: Lieselotte Obst-Huebl Laser-accelerated proton beams have received increasing attention due to their potential multidisciplinary applications to laser-driven radio-oncology, fusion energy and material sciences among others. These applications demand well controlled ion beam quality, specifically high particle energies and sufficient particle yields, both delivered in a stable and reliable fashion. So far, best laser-acceleration performance was achieved when applying micrometer thick foils as interaction targets in the focus of the high-power laser pulses. This contribution presents the first demonstration of equally efficient laser-proton acceleration from renewable cryogenic hydrogen jets. Due to their continuous and debris-free operation, these targets are credible candidates to enable transitioning from proof-of-principle experiments to application-ready ion sources as they meet critical demands arising from high shot rates (up to 10 Hz) of modern Petawatt laser systems. When operated at the 150 TW laser DRACO of Helmholtz-Zentrum Dresden-Rossendorf (HZDR) in collaboration with SLAC and EuropeanXFEL, high-quality pure proton beams with energies up to 20 MeV and particle yields of \textgreater 10$^{\mathrm{9}}$ /MeV/sr were detected from hydrogen micro-jets, comparable to proton beams obtained from reference metal foils. Furthermore, investigation of the accelerated proton beam profiles revealed a so far unrecognized effect of the polarized background gas in the interaction chamber. At millimeter distances from the initial laser-target interaction, the transmitted laser pulse ionized residual gas molecules and lead to the formation of quasi-static electric deflection fields in the shape of the laser beam profile. As the trailing proton pulse propagated through the field map, laser intensity features were imprinted on its beam profile, allowing for deliberate tailoring of profile structures and offering an alternative explanation for beam profile modulations observed in previous experiments in the field. [Preview Abstract] |
Sunday, April 18, 2021 4:07PM - 4:29PM Live |
L02.00002: Mitsuyoshi Tanaka Dissertation Award in Experimental Particle Physics (2021): Probing new physics using initial state radiation jets at the large hadron collider. Invited Speaker: Cristina Mantilla Suarez TBD [Preview Abstract] |
Sunday, April 18, 2021 4:29PM - 4:51PM Live |
L02.00003: JJ and Noriko Sakurai Dissertation Award (2021): Higgs Couplings as a Gateway to New Fundamental Physics Invited Speaker: Samuel Homiller The discovery of the Higgs boson at the LHC has left particle theorists in the unsettling situation of possessing a complete, theoretically consistent model for all known particles and interactions, but with myriad outstanding problems left to be solved. Experiments at the LHC continue to set increasingly precise constraints on the nature of the Higgs, but many of its properties remain essentially unconstrained. In this talk, I will review the central role of the Higgs in the Standard Model with an emphasis on what we have yet to learn, and argue why further studies of the Higgs are a motivated approach to search for new physics. I will then discuss recent developments in studies of the Higgs couplings to itself, to light quarks, and to the electroweak sector. Finally, I will close with an overview of several exciting directions for future study at the HL-LHC and future colliders. [Preview Abstract] |
Sunday, April 18, 2021 4:51PM - 4:55PM Live |
L02.00004: DPB Exceptional Service Award Invited Speaker: Ernest Malamud The APS Exceptional Service Recognition will be announced and a few comments will be made by the recipient. [Preview Abstract] |
Sunday, April 18, 2021 4:55PM - 4:59PM Live |
L02.00005: DPB Exceptional Service Award Invited Speaker: Stephen Holmes The APS Exceptional Service Recognition will be announced and a few comments will be made by the recipient. [Preview Abstract] |
Sunday, April 18, 2021 4:59PM - 5:05PM Live |
L02.00006: Yuri Orlov Wilson Prize Recipient – In Memoriam: Pioneering Innovation in Accelerator Theory and Practice Georg Hoffstaetter TBD [Preview Abstract] |
Sunday, April 18, 2021 5:05PM - 5:11PM Live |
L02.00007: Yuri Orlov Wilson Prize Recipient – In Memoriam: Seminal Contributions to the Muon g-2 Experiment Bill Morse TBD [Preview Abstract] |
Sunday, April 18, 2021 5:11PM - 5:17PM Live |
L02.00008: Yuri Orlov Wilson Prize Recipient – In Memoriam: Deep Understanding of Beam and Spin Dynamics Paul Debevec TBD [Preview Abstract] |
Sunday, April 18, 2021 5:17PM - 5:23PM Live |
L02.00009: Yuri Orlov Wilson Prize Recipient – In Memoriam: Embodying Spirit of Scientific Freedom Gerry Bunce TBD [Preview Abstract] |
Sunday, April 18, 2021 5:23PM - 5:29PM Live |
L02.00010: Yuri Orlov Wilson Prize Recipient – In Memoriam: Consistently Unique and Fruitful Ideas, Ranging from the Practical to the Visionary Yannis Semertzidis TBD [Preview Abstract] |
Sunday, April 18, 2021 5:29PM - 5:35PM Live |
L02.00011: Yuri Orlov Wilson Prize Recipient – In Memoriam: Scientific Character: Integrity, Generosity Yannis Semertzidis TBD [Preview Abstract] |
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