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Fabiola Gianotti (CERN)06/09/2016, 08:30
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Christoph Rembser (CERN)06/09/2016, 08:35
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Mikhail Shaposhnikov (EPFL)06/09/2016, 09:30
The Standard Model may be a valid effective field theory all the way up to the Planck scale, still it suffers from a number of theoretical and observational shortcomings. I will overview the arguments for a possible existence of new particles with masses below the electroweak scale and discuss the experimental prospects to search for them.
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Maxim Pospelov06/09/2016, 10:00
When the LHC results (no new physics yet, and the Higgs mass at 125 GeV) are interpreted in terms of pre-LHC expectations (SUSY), one faces a sobering thought of superpartner masses at or above 10 TeV. Only a very few types of indirect experiments are capable of probing these energy scales with radiative corrections. Electric dipole moments are perhaps the most promising avenue to access the...
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Andreas Ringwald (Deutsches Elektronen-Synchrotron DESY)06/09/2016, 11:00
We review the theoretical and phenomenological motivation for axions, ALPs and other very light particles as well as the state of the art in present and future experimental searches with a particular emphasis on the possibility of them forming part of the dark matter of the Universe.
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Clare Burrage (University of Nottingham)06/09/2016, 11:30
I will discuss the possibility that the nature of the dark energy driving the observed acceleration of the Universe on giga-parsec scales may be determined first through metre scale laboratory based atom interferometry experiments. I will begin by discussing why our attempts to solve the cosmological constant problem lead to the introduction of new, light degrees of freedom. In order to be...
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Peter Graham06/09/2016, 13:30
Precision measurement offers a powerful new approach for particle physics. Technologies such as atom interferometry, nuclear magnetic resonance, high precision magnetometry, and torsion balances allow novel, highly sensitive experiments for direct detection of dark matter and gravitational waves. These provide the optimal method for direct detection of light dark matter candidates such as...
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Giovanni Rumolo (CERN)06/09/2016, 14:00
The LHC Injectors Upgrade (LIU) project will implement significant upgrades across the complex during Long Shutdown 2 with the main goal to improve the performance of LHC beam production. Non-LHC physics beams might also potentially benefit from the LIU upgrades. Proton delivery through the CERN accelerator complex will be therefore discussed in view of the potential provided by LIU, including...
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Lau Gatignon (CERN)06/09/2016, 14:20
In this presentation we will present the present possibilities and performance of the various beam lines in the North and East Areas, downstream of the primary targets. The limitations and restrictions on their performance will be outlined, First hints will be given on what is needed in terms of studies for upgrade to meet the requirements for the new proposals for experiments presented at...
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Marco Calviani (CERN)06/09/2016, 14:40
A preliminary conceptual design of a general-purpose fixed target facility with aim of accommodating high intensity dump experiments in the SPS complex, such as the proposed SHiP experiment, has been produced. The facility has been conceived to be sited in the CERN’s North Area on the Prevessin site and to receive the full SPS beam. Its design also allows the possibility to retune the...
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Matthew Alexander Fraser (CERN)06/09/2016, 15:00
Slow extraction from the SPS is essential for present and future Fixed Target beams in the North Area, and will be a key feature of the beam for the proposed Beam Dump Facility experiments like SHiP. The 3rd integer resonant extraction mechanism and accelerator components used to remove the beam from the accelerator intrinsically generate a few percent of beamloss, most of which is localised...
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Alessandra Lombardi (CERN)06/09/2016, 15:50
In the past CERN has explored in some depth options for upgrades or novel exploitation of the accelerator complex. These options are briefly revisited. Putting aside neutrinos, RIB, and neutrons, their possible application (or not) as a driver for muon physics - complementary to existing worldwide efforts - is considered. Finally an alternative approach is introduced.
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Stefano Redaelli (CERN)06/09/2016, 16:10
Bent crystals have been recently installed in the Large Hadron Collider for halo collimation studies. The first tests performed with hadron beams demonstrated channeling with good efficiency at energies up to 6.5 TeV and provided an initial feedback on the operation of crystals that are integrated in the transverse hierarchy of the LHC collimation system. Data collected also provide a...
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Walter Scandale (CERN)06/09/2016, 16:25
In this talk we investigate scenarios for an experiment to measure the magnetic moment of the Λc and other charmed charged baryons at LHC top energies. In the last decade, the UA9 Collaboration has developed the technology and more recently used it to demonstrate that bent silicon crystals can efficiently steer the diffusive halo surrounding the circulating beam in LHC, up to 6.5 TeV energy. A...
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Mei Bai (Forschungszentrum GmbH)06/09/2016, 16:40
The storage ring technique to search for the EMD of the proton and deuteron is introduced. The accelerator physics and technical challenges are outlined. Work is ongoing worldwide to address these challenges and progress is briefly summarised. Physics motivation is discussed in a companion presentation at this workshop - 'EDM measurement in a proton storage ring'.
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Kenneth Richard Long (Imperial College (GB))06/09/2016, 17:00
The Neutrinos from Stored Muons (nuSTORM) facility has been designed to deliver beams of nu_e and nu_mu from the decay of a stored ?? beam. nuSTORM has the potential to:
- Serve the future long- and short-baseline neutrino-oscillation
programmes by providing definitive measurements of ,?nu_e N and nu_mu
?N scattering cross sections with percent-level precision; and - Allow...
- Serve the future long- and short-baseline neutrino-oscillation
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Oleg Denisov (INFN, sezione di Torino)07/09/2016, 08:30
The high intensity secondary beams at the SPS M2 beam line in combination with the world’s largest polarized nucleon targets as well as large liquid hydrogen and a broad variety of nuclear targets put the COMPASS collaboration in a unique position as a universal experimental facility to study previously unexplored aspects of meson and nucleon structure, QCD dynamics and hadron...
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Marek Gazdzicki (Johann-Wolfgang-Goethe Univ. (DE))07/09/2016, 08:50
NA61/SHINE is a multi-purpose experimental facility to study hadron production in hadron-proton, hadron-nucleus and nucleus-nucleus collisions for physics of strong interactions, neutrinos and cosmic-rays. NA61/SHINE approved data taking programme should be completed by the end of 2018. This presentation summarizes requests for new measurements and necessary facility upgrades. The former...
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Tommaso Spadaro (Istituto Nazionale Fisica Nucleare Frascati (IT))07/09/2016, 09:10
Searches for dark-matter (DM) candidates in the MeV to few-GeV mass range feebly interacting with SM particles are generating much interest: as suggested by different authors, thermal relics due to these long-lived particles might account for the observed DM abundance in the universe. Provided NA62 reaches its limiting sensitivity for the precise measurement of the ultra-rare FCNC K+ —> pi+ nu...
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Stefan Ulmer (Institut of Physical and Chemical Research (JP))07/09/2016, 09:30
Experiments at the Antiproton Decelerator of CERN compare the fundamental properties of matter/antimatter conjugates at lowest energies and with great precision. Such efforts provide stringent tests of the fundamental charge-parity-time invariance of the Standard Model, and allow testing of the equivalence principle of general relativity. Using single particles in Penning traps the most...
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Klaus Blaum (Max-Planck-Gesellschaft (DE))07/09/2016, 09:50
The search for physics beyond the Standard Model can be performed complementary to high-energy physics by conducting studies at lowest energies. The achieved extraordinary precision is needed for reaching similar or even improved sensitivity limits. Radionuclides provide in this respect an ideal laboratory for addressing properties of all known fundamental interactions. High-precision nuclear...
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Andrei Golutvin (Imperial College London)07/09/2016, 10:40
The experimental evidence for BSM physics such as the non-zero neutrino masses, the baryon asymmetry in the Universe, and the presence of non-baryonic dark matter may have their origin in new physics involving very weakly interacting particles as predicted by models with a secluded or hidden sector of particles. In general, these models contain mediators that couple very weakly with SM...
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Sergei Gninenko (Russian Academy of Sciences (RU))07/09/2016, 11:00
The NA64 is a fixed-target experiment aiming to search for dark sector physics with a high-energy electron beam at the CERN SPS. The experiment uses a new approach combining the active beam dump and missing energy techniques. We present the future NA64 research program which is significantly extended
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%and has a certain advantages compared to the classical beam dump approach.
by... -
Themis Bowcock (University of Liverpool (GB)), Yannis Semertzidis (CAPP/IBS and KAIST in South Korea)07/09/2016, 11:20
A measurement of the proton EDM to better than 10-29ecm, or better, allows us to probe physics in a new regime up to ~3PeV mass scale. The use of the storage ring EDM technique permits 5 orders of magnitude improvement over current indirect measurements of dp (from Hg) and 3 orders magnitude more sensitivity on QCD inferred from neutron EDM measurements. Non-zero values of the pEDM would...
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Matthew Moulson (Istituto Nazionale Fisica Nucleare Frascati (IT))07/09/2016, 11:40
Precise measurements of the branching ratios (BRs) for the flavor-changing
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neutral current decays $K\to\pi\nu\bar{\nu}$ can provide unique constraints
on CKM unitarity and, potentially, evidence for new physics. It is important
to measure both decay modes, $K^+\to\pi^+\nu\bar{\nu}$ and
$K_L\to\pi^0\nu\bar{\nu}$, since different new physics models affect the rates
for each channel differently.... -
Graziano Venanzoni (Istituto Nazionale Fisica Nucleare Frascati (IT))07/09/2016, 12:00
The anomalous magnetic moment g-2 of the muon is a precision measurement which exhibits a 3.5$\sigma$ deviation between theory and experiment, and in the next few years will be measured at Fermilab and J-PARC with even higher precision.
The hadronic contribution to the muon g-2 ($a^{\rm HLO}_{\mu}$) is the most important one after the pure QED contribution. It is however affected by a large...
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Leonid Nemenov (Joint Inst. for Nuclear Research (RU))07/09/2016, 13:40
The lifetime of the short-lived ($\tau_{th}$ about $3\times10^{-15}$ s in the ground state) $\pi^+K^-$, $K^+\pi^-$, ($\pi^+\pi^-$ ) atoms($A_{\pi^+K^-}$, $A_{K^+\pi^-}$ and $A_{2\pi}$ ) is given within 1% (0.6%) precision by the S-wave $\pi K$ ($\pi\pi$) scattering length combination $|a_{1/2}-a_{3/2}|$ ($|a_0-a_2|$), where 1/2, 3/2 (0, 2) are the isospin values. Furthermore, the study of...
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Gianluca Usai (Universita e INFN (IT))07/09/2016, 14:00
The theory of strong interactions, Quantum Chromodynamics (QCD), predicts a rich variety of different phases of strongly interacting matter. The QCD phase diagram is usually represented as a function of the temperature and baryon density. At sufficiently high temperatures, a transition from hadronic matter to a Quark-Gluon Plasma (QGP), a state where quarks and gluons are no more confined...
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Mieczyslaw Witold Krasny (LPNHE, IN2P3, CNRS, University Paris VI and VII)07/09/2016, 14:20
This contribution discusses the possibility of broadening the present CERN research programme by a new component, making use of a novel concept of the light source. The proposed, partially stripped ion beam driven, light source is the backbone of the Gamma Factory initiative. It could be realized at CERN by using the infrastructure of the already existing accelerators. It could push the...
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Jean-Philippe Lansberg (IPN Orsay, Paris Sud U. / IN2P3-CNRS)07/09/2016, 14:40
In this talk, we review a number of recent ideas$^*$ put forward in favour of a fixed-target programme at the LHC - AFTER@LHC- dedicated to heavy-ion, hadron, spin and astroparticle physics. By extracting the beam with a bent crystal or by using an internal gas target, the multi-TeV LHC beams allow one to perform the most energetic fixed-target experiments ever with which one can access the...
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achille stocchi (LAL CNRS Universite Paris Sud)07/09/2016, 15:00
The magnetic moments of baryons containing u,d and s quarks have been extensively studied and measured. The experimental results are all obtained by a well-assessed method that consists in measuring the polarisation vector of the incoming particles and the precession angle when the particle is travelling through an intense magnetic field. The polarization is evaluated by analysing the angular...
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Matthew Wing (University of London (GB))07/09/2016, 15:50
The AWAKE experiment [1] will be taking data over the next two years
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to establish the method of proton-driven plasma wakefield
acceleration. An R&D programme is being formulated for post-LS2 in
which the AWAKE experiment demonstrates [2] that bunches of about $10^9$
electrons with an energy of 10 GeV accelerated in about 10 m of
plasma are achievable and that the energy gain is scalable... -
Igor Garcia Irastorza (Universidad de Zaragoza (ES))07/09/2016, 16:10
Axions are a natural consequence of the Peccei-Quinn mechanism, the most compelling solution to the strong-CP problem. Similar axion-like particles (ALPs) also appear in a number of possible extensions of the Standard Model, notably in string theories. Both axions and ALPs woudl be copiously produced at the sun's interior, and in addition they are very well motivated candidates for the Dark...
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Giovanni Cantatore (Universita e INFN, Trieste (IT))07/09/2016, 16:30
Sensitive measurements on the short range interactions between macroscopic bodies provide a window on possible physics beyond the standard model, including extra-dimensions, scalar dark matter and dilatons. The sub-micron scale distances is presently not accessible to experimental investigation, and may hold the key to understanding at least part of the dark matter puzzle.
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The a-KWISP... -
Axel Lindner (DESY)07/09/2016, 16:50
Weakly interacting slim particles (WISPs) are searched for in purely laboratory based experiments with the so-called light-shining-through-a-wall (LSW) approach. Here the detection of axion and axion-like particles, which seem to be the best motivated WISPs from theoretical considerations, requires the presence of a long and strong magnetic field perpendicular to the light path. Current...
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Cristiano Galbiati (Princeton University (US))07/09/2016, 17:10
The DarkSide-50 dark matter detector at LNGS is a two-phase argon TPC, installed at the center of two nested veto detectors, a 30-tonne liquid scintillator neutron veto and a 1,000-tonne water Cherenkov muon veto. While operating in 2014 with a fill of argon extracted from the atmosphere, DarkSide-50 demonstrated its capability to operate in a background-free mode even in presence of the...
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Claude Vallee (Centre de Physique des Particules de Marseille), Joerg Jaeckel (ITP Heidelberg), Mike Lamont (CERN)07/09/2016, 17:30
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