Naturalness 2014

Weizmann Institute of Science

Weizmann Institute of Science

Gilad Perez (CERN & Weizmann)
The discovery of a Higgs boson, with a mass around 125 GeV, at the LHC is a great victory for the Standard Model (SM). With its minimal scalar sector of electroweak symmetry breaking, the SM at short distances, well below the proton radius, is a complete weakly coupled theory. Even though the SM cannot explain several experimental observations such as neutrino masses, the baryon asymmetry of the universe and the origin of dark matter, one cannot deduce an energy scale at which the SM would be forced to be extended (with the exceptions of the Planck scale and the Landau pole of the hypercharge force). However, the fact that the Higgs mass is subject to additive renormalization, implies that the electroweak scale is unnatural. All the known concrete solutions to this UV sensitivity problem require new dynamics characterized by energy scale close to the weak scale. A simple possibility to stabilize the electroweak scale in a controlled manner is to add some new particles with the same gauge quantum numbers as the SM ones. Current bounds on the top partner masses are of order of 700-800 GeV. While these bounds are fairly strong, they are not bullet-proof and are only in moderate tension with naturalness. The most relevant question amidst the "LHC battle for naturalness" is how we are going to discover or extend the bounds on the partners both in terms of (i) mass reach; and (ii) robustness. These two criteria can possibly direct us to where the theoretical, phenomenological and experimental effort should be made. One can define two "mini-frontiers" for the battle for naturalness at the high pT LHC experiments. First, the "mini" energy frontier, where the effort is focused on searching for ultra massive partners, which is dominated by the highest center of mass energies that can be reached by the LHC. Second, the "mini" intensity frontier, where the effort is focused on searching for partners with mass below or near the current bounds, however, when the partners are elusive to current searches. The physics of these two frontiers is qualitatively different both in terms of their phenomenology and in the corresponding necessary experimental effort. The linkage with the genuine intensity frontier, especially in view of the results from the LHCb collaboration, is to be discussed as well. This workshop will bring together experimental and theory experts from the various frontiers relevant to the physics of naturalness, to cover the theoretical, phenomenological and experimental aspects of the above basic questions, in the context of the LHC. We expect to cover the status and the implications of the current results from the first run of the LHC and will discuss in length the search strategies and reach for the next LHC run expected to start in 2015. In addition, as the LHC reach for top-partners discovery is limited to probing scales below the 2 TeV region we also plan to discuss what kind of experimental effort beyond our current horizon can extend our reach in the study of the physics of naturalness. In particular we plan to discuss the scientific potential and significance of a future 100 TeV hadron collider. All the speakers and panels' members are by invitation only. The main workshop is preceded by a 2-day satellite workshop. For more details on that workshop (including timetable), see Financial support: - TOPCHARM Consolidator ERC Grant - WIS CSP program - The I-CORE Program of the Planning and Budgeting Committee and The Israel Science Foundation (grant No. 1937/12) - The Maurice and Gabriella Goldschleger Center for Nanophysics, Weizmann Institute - Faculty of Physics, Weizmann Institute - Department of Particle Physics and Astrophysics, Weizmann Institute
  • Abner Soffer
  • Adi Ashkenazi
  • Aielet Efrati
  • Alex Pomarol
  • alexander kagan
  • Alexander Lincoln Read
  • Amit Abir
  • Andrea Wulzer
  • Andreas Weiler
  • Andrew Koshelkin
  • Avital Dery
  • Aviv Shalit
  • Cedric Delaunay
  • Christophe Grojean
  • Csaba Csaki
  • Daniel Aloni
  • Daniel Fleischer
  • Daniel Lellouch
  • Daniel Stolarski
  • Daniel Turgeman
  • Diego Martinez Santos
  • Diptimoy Ghosh
  • Edoardo Gorini
  • Efrat Gerchkovitz
  • Ehud Duchovni
  • Eilam Gross
  • Emmanuel Stamou
  • Enrique Kajomovitz Must
  • Erez Etzion
  • Frank Wuerthwein
  • Gabriel Lee
  • George Sterman
  • Gian Giudice
  • Giancarlo Panizzo
  • Gilad Perez
  • Giuliano Panico
  • Graham Kribs
  • Greg Landsberg
  • Guy Koren
  • Guy Wilkinson
  • Ira Hammerman
  • Itamar Roth
  • Itay Bloch
  • Jared Evans
  • Jernej F. Kamenik
  • jonathan cohen
  • Jure Zupan
  • Kohsaku Tobioka
  • Liantao Wang
  • lisa randall
  • Lorenzo Ubaldi
  • Marek Karliner
  • Margherita Primavera
  • Marumi Kado
  • Matthew Reece
  • Matthew Strassler
  • Merlin Davies
  • Michael Geller
  • Michael Spannowsky
  • Michele Redi
  • Mihailo Backovic
  • Monica D'Onofrio
  • Moon Moon Devi
  • Nathaniel Craig
  • Niv Ierushalmi
  • Ofer Aharony
  • Ofri Telem
  • Oren Slone
  • Pekka Sinervo
  • Raman Sundrum
  • Reuven Balkin
  • Riccardo Rattazzi
  • Rinon Gal
  • Roberto Contino
  • Roni Harnik
  • Ryosuke Sato
  • Seung J. Lee
  • Shaouly Bar-Shalom
  • Shlomit Tarem
  • Sho Iwamoto
  • Si Xie
  • Stephen Sekula
  • Tatiana Vulfs
  • Thomas Dieter Flacke
  • Timothy Cohen
  • Tobias Golling
  • Tomer Volansky
  • Uri Karshon
  • Vladimir Narovlansky
  • Walter Tangarife
  • Witold Skiba
  • Yael Shadmi
  • Yevgeny Kats
  • Yossi Nir
  • Yotam Soreq
  • Zackaria Chacko
  • Zohar Komargodski
  • Zoltan Ligeti
    • 8:30 AM
      Bus ride to the Weizmann Institute from Crowne Plaza hotel

      from Crowne Plaza hotel

    • Coffee
    • Opening Session
      Convener: Erez Etzion (Tel Aviv University (IL))
      • 1
        Opening announcement
        Speaker: Gilad Perez (CERN & Weizmann)
      • 2
        Welcome - Weizmann Physics Faculty Dean
        Speaker: Yosef Nir (Weizmann Institute of Science (IL))
      • 3
        Opening talk
        Speaker: Nima Arkani-Hamed (IAS)
    • SUSY and Naturalness overview
      Convener: Monica D'Onofrio (University of Liverpool (GB))
      • 4
        SUSY and Naturalness overview (the.)
        Speaker: Raman Sundrum (University of Maryland)
      • 5
        SUSY and Naturalness overview (exp.)
        Speaker: Margherita Primavera (Universita del Salento (IT))
      • 6
    • Lunch break
    • Composite Higgs and Naturalness
      Convener: Eilam Gross (Weizmann Institute of Science (IL))
      • 7
        Composite Higgs and Naturalness overview (the.)
        Speaker: Riccardo Rattazzi (Ecole Polytechnique Federale de Lausanne (CH))
      • 8
        Composite Higgs and Naturalness overview (exp.)
        Speaker: Tobias Golling (Yale University (US))
    • Coffee
    • Higgs Discovery
      Convener: Marumi Kado (Lab. de l'Accelerateur Lineaire (IN2P3) (LAL)-Universite de Pari)
      • 9
        Higgs Discovery
        Speaker: Si Xie (California Institute of Technology (US))
      • 10
    • Panel: Naturalness
      Convener: Csaba Csaki (Cornell University)
      • 11
        Speakers: Csaba Csaki (Cornell University), Michele Redi (Universita e INFN (IT)), Nathaniel Craig, Roberto Contino (EPFL Lausanne & CERN (CH)), Witold Skiba (Yale University)
    • 5:00 PM
      Bus to Workshop Dinner (in Tel Aviv)
    • 6:30 PM
      Workshop Dinner Vicky Cristina restaurant (in HaTachana compound in Tel Aviv)

      Vicky Cristina restaurant (in HaTachana compound in Tel Aviv)

    • 7:30 AM
      Excursion to Masada
    • Coffee
    • Flavor Physics
      Convener: Yael Shadmi (Technion)
      • 12
        Flavor physics (the.)
        Speaker: Alexander Kagan (university of cincinnati)
      • 13
        Rare decays (exp.)
        Speaker: Diego Martinez Santos (NIKHEF (NL))
      • 14
        CP Violation (exp.)
        Speaker: Guy Wilkinson (University of Oxford (GB))
    • Light supper
    • Panel: Flavor and Naturalness
      Convener: Zoltan Ligeti (Unknown)
      • 15
        Flavor and Naturalness
        Speakers: Graham Kribs (University of Oregon), Jernej F. Kamenik (Jozef Stefan Institute), Jure Zupan (University of Cincinnati), Zoltan Ligeti
    • 8:15 PM
      Bus to the hotel
    • 8:30 AM
      Bus ride to the Weizmann Institute from Crowne Plaza hotel

      from Crowne Plaza hotel

    • Coffee
    • Elusive SUSY
      Convener: Shlomit Tarem (Israel Institute of Technology (IL))
      • 16
        Elusive SUSY (the.)
        Speaker: Matthew Reece (Harvard University)
      • 17
        Elusive SUSY (exp.)
        Speaker: Frank Wuerthwein (Univ. of California San Diego (US))
    • Elusive Compositeness and non-colored partners
      Convener: Shlomit Tarem (Israel Institute of Technology (IL))
      • 18
        Elusive Compositeness (the.)
        Speaker: Giuliano Panico (CERN)
      • 19
        Non-colored partners (the.)
        Speaker: Zackaria Chacko
    • Lunch break
    • LEP & Higgs vs. Naturalness and the future
      Convener: Tomer Volansky (Tel Aviv University (IL))
      • 20
        LEP & Higgs vs. Naturalness (the.)
        Speaker: Alex Pomarol (Universidad de Barcelona)
      • 21
        Higgs physics and the future (the.)
        Speaker: Christophe Grojean (ICREA/IFAE (Barcelona))
    • Coffee
    • Higgs and BSM
      Convener: Tomer Volansky (Tel Aviv University (IL))
      • 22
        Higgs and BSM (exp.)
        Speaker: Alexander Lincoln Read (University of Oslo (NO))
    • Panel: What have we missed?
      Convener: Matthew Strassler (Harvard University)
      • 23
        What have we missed?
        Speakers: Cedric Delaunay (Unite Reseaux du CNRS (FR)), Daniel Stolarski (CERN), Jared Evans, Matthew Strassler (Harvard University)
    • 5:00 PM
      Bus to the hotel
    • 8:30 AM
      Bus ride to the Weizmann Institute from Crowne Plaza hotel

      from Crowne Plaza hotel

    • Coffee
    • Hadronic Precision and Boosted Physics
      Convener: Abi Soffer (Tel Aviv University (IL))
      • 24
        Hadronic Precision Frontier: Where to push?
        Speaker: George Sterman (SUNY)
      • 25
        SUSY in the boosted regime (the.)
        Speaker: Michael Spannowsky (IPPP Durham)
      • 26
        Compositeness in the boosted regime (the.)
        Speaker: andrea wulzer (ETH-Zurich)
      • 27
        SUSY and compositeness in the boosted regime (exp.)
        Speaker: Greg Landsberg (Brown University (US))
    • Lunch break
    • Dark Matter
      Convener: Zohar Komargodski
      • 28
        How natural is dark matter?
        Speaker: Lisa Randall (H)
    • Environmental Argument
      Convener: Zohar Komargodski
      • 29
        The pros and cons of the environmental argument
        Speaker: Roni Harnik (Fermilab)
    • Coffee
    • Extension of the SM up to Infinite Energy
      Convener: Zohar Komargodski
      • 30
        Softened Gravity and the Extension of the SM up to Infinite Energy
        Speaker: Gian Giudice (CERN)
    • Panel: Deep into the future
      Convener: LianTao Wang (University of Chicago)
      • 31
        Deep into the future
        Speakers: Andreas Weiler (CERN), LianTao Wang (University of Chicago), Prof. Pekka Sinervo (University of Toronto (CA)), Timothy Cohen (SLAC)
    • 5:00 PM
      Bus to the hotel