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PHENIICS Fest 2017

30–31 mai 2017
Laboratoire de l'Accélérateur Linéaire (LAL)
Fuseau horaire Europe/Paris

Organizing commitee

Liste des Contributions

62 / 62
28. Deeply Virtual Compton Scattering at Jefferson Laboratory
M. Frederic Georges (IPN)
30/05/2017 09:50
The internal structure of the nucleon - that is, what ordinary matter is made of and what the laws describing it are at their most fundamental level - is still not fully understood by modern nuclear physics. Form factors provide insight about parton positions while parton distribution functions give information about their momentum distribution inside the nucleon, but no correlations can be...
33. Generalized Parton Distributions and their covariant extension
M. Nabil Chouika (Irfu/SPhN - CEA Saclay)
30/05/2017 10:10
The internal structure of hadrons (which are bound-states of quarks and gluons, such as the proton or pion) is difficult to map due to the non-perturbative QCD regime in which the constituents interact. Decades of experiments in the field have allowed us to learn a lot about the distribution of momentum (through what is called parton distribution functions, PDFs) or transverse plane position...
21. Charmonium production in PbPb collisions at 5.02 TeV with CMS
M. Andre Govinda Stahl (LLR)
30/05/2017 10:30
Charmonium states, such as the J/ψ and ψ(2S) mesons, are excellent probes of the deconfined state of matter, the Quark-Gluon Plasma (QGP). The understanding of charmonia production in PbPb collisions requires the inclusion of many phenomena, such as dissociation in the QGP and statistical recombination, on top of cold nuclear matter effects. In this talk, final results on the...
12. The atomic nucleus : A natural laboratory of complexity
M. Raphaël-David Lasseri (Institut de Physique Nucléaire d'Orsay)
30/05/2017 11:20
The understanding of the structural properties of nuclei is a long-standing issue. Indeed, the underlying complexity of a many-body fermionic system in strong interaction, led to the arising of wide panel of phenomena and behavior. Thus an universal treatment of such properties is particularly challenging. We'll give a short overview of the usual techniques used to describe nuclear...
43. Nuclear structure calculations: mean-field and beyond
M. Petar Marevic (IPNO/CEA)
30/05/2017 11:40
Atomic nucleus is a quantum many-body system whose properties are determined by a number of nucleons and the interaction between them. The comprehensive theoretical framework for the description of nuclear systems should therefore be able to account for more than 3000 observed and thousands still unobserved nuclei, including their ground-state, excited-state and reaction properties. It turns...
52. Interfacing Many-Body methods and EFT interactions
M. Mehdi DRISSI (CEA/SPhN)
30/05/2017 12:00
Through the study of neutron matter, we emphasis the importance of adapting the many-body techniques to the way the nuclear interaction derived from an Effective Field Theory have been renormalized.
58. Recent developments in Bogoliubov Many-Body Perturbation Theory
M. Pierre Arthuis (CEA/DRF/IRFU/SPhN)
30/05/2017 12:20
In the recent years, so-called *ab initio* methods have know a resurgence of interest among the nuclear theory community. Recent investigations [Tichai et al., 2016] have shown that Many-Body Perturbation Theory (MBPT), when using Hamiltonians evolved through the Similarity Renormalization Group method, could provide results competing with more demanding techniques like Self-Consistent Green's...
7. Development of the Fast and Efficient Gamma Detector Using Cherenkov Light for Positron Emission Tomography
Mlle Clotilde Canot (CEA IRFU)
30/05/2017 12:40
Positron emission tomography (PET) is a nuclear imaging technique widely used in oncology. Decay of the tracer emits positrons, which annihilate in the nearby tissue. Two gamma quanta with the energy 511 keV are produced by positron annihilation and allow one to reconstruct the annihilation vertex and distribution of the tracer activity in the body of the patient. I developped an...
38. MAPSSIC: a novel CMOS intra-cerebral beta+ probe for deep brain imaging in awake and freely moving rat
M. Luis Ammour (Université Paris-Sud - IMNC)
30/05/2017 13:00
Preclinical behavior neuroimaging gathers simultaneous assessment of behavior and functional brain imaging. This complementarity is seen as a critical step for comparing animal to human behavior and consequently assess the validity of preclinical studies in drug development. Achieving such a combination is difficult, anaesthesia or restraints inherent to micro-PET imaging precludes its use...
61. Gamma-ray cascade study in Kr and Ba fission fragments with the EXILL experiment
M. Michal Rapala (CEA Saclay/IRFU/DPhN/LERN)
30/05/2017 16:45
The poor accuracy of microscopic models in the prediction of fission observables constrains nuclear industry to rely on semi-empirical models, which in turns need systematic and accurate experimental data on a significant number of observables. In the last decade, large efforts were made in the fission community to improve models of the fission process and of the de-excitation of fission...
26. Simultaneous measurement of the neutron-induced 233U capture and fission cross sections
M. Michael Bacak (CEA Saclay, Irfu; CERN)
30/05/2017 17:05
233U plays the essential role of the fissile nucleus in the Th-U fuel cycle, which has been proposed as a safer and cleaner alternative to the U-Pu fuel cycle. A particularity of 233U is its small neutron capture cross-section which is about one order of magnitude lower than the fission cross-section on average. Therefore, the accuracy in the measurement of the 233U capture cross-section...
5. The study of gamma emission in the fission process
M. Liqiang QI (IPN NESTER)
30/05/2017 17:25
Prompt fission gamma spectra (PFGS) have been recently measured for the 238U(n,f) and 239Pu (n,f) reactions using fast neutrons produced by the LICORNE directional neutron source. The setup consisted of ionization chambers containing the actinides samples and LaBr3 scintillators to measure the coincident prompt fission gamma rays. Prompt fission gamma rays were discriminated from prompt...
15. Transfer reactions induced with 56Ni: pairing and N=28 shell closure
Mlle Anastasia Georgiadou (IPN)
30/05/2017 17:45
The experimental study of the neutron-proton pairing is a challenging task that relies on the strength of the physical observables. Binding energies of N = Z nuclei and rotational properties of finite nuclei are some of the tools used up to now. Despite, their robustness to prove other physical phenomena, they are shown to be insufficient to prove the existence of T =0 pairing collectivity. On...
25. First life time measurements in the 78Ni region with AGATA and VAMOS at GANIL
M. Clément DELAFOSSE (IPNO)
30/05/2017 18:05
Yrast (\textit{i.e.} the state with the lower energy for a given spin-partiy) and near-Yrast states were populated in the 78Ni region by fusion-fission reaction 238U(9Be,Xγ) at GANIL. The prompt γ-rays were detected by the AGATA array\footnote{S. Akkoyun \textit{et al.}, \textit{AGATA - Advanced GAmma Tracking Array}, NIM A668 (2012) 26-58} and particle...
48. Searches for dark matter particles produced in VBF processes in pp collisions at sqrt(s)=13 TeV with the ATLAS detector
Marta Maria Perego (CEA Saclay)
31/05/2017 09:30
Dark Matter constitutes 80% of the matter in the universe, as confirmed by astrophysical and cosmological observations, but it has never been detected directly. An important role in the search for the dark matter particles is played by the LHC. In particular, scenarios where the dark matter has a coupling to the Higgs boson can be tested at the LHC by searching for the invisible decay of the...
64. The High Granularity Timing Detector
M. Corentin Allaire (LAL)
31/05/2017 09:50
In 2026 the high luminosity upgrade of the LHC (HL-LHC) will begin, bringing an improvement of a factor up to five for the luminosity (rate of interaction) in comparison to the original design value. One of the implication of the increase of the luminosity is an increase of the pile-up (number of interactions per collision) from around 25 events during the Run1 up to 200 during the HL-LHC for...
63. Development of new n-on-p active edge pixel detectors for ATLAS Inner Detector Upgrade
Mme Tasneem Rashid (LAL)
31/05/2017 10:10
Silicon detectors are playing a key role in High Energy Physics (HEP) experiments due to their superior tracking capabilities. In view of the upgrade plans of ATLAS experiment toward the high luminosity, the silicon tracking detector (ITK) will be operated in a very intense radiation environment. This work addresses the study of active edge n-in-p planar sensors. Active edge planar pixel...
46. Allsky search for long duration gravitational waves detection
M. Valentin FREY (LAL)
31/05/2017 10:30
From September 2015 to January 2016, Advanced LIGO conducted its first observation run (O1) with a sensitivity more than three times better than the initial detectors'. We describe a search for long duration gravitational wave transients in the O1 data. This complements the all-sky un-modelled transient search by looking for gravitational waves of durations of many hundreds of seconds. The...
57. The Cosmic Microwave Background
M. Sylvain Vanneste (Laboratoire de l'accélérateur Linéaire, groupe Cosmologie)
31/05/2017 10:50
Physical Cosmology, as it is today understood, began with the development in 1915 of Albert Einstein's general theory of relativity, followed by major observational discoveries in the 1920s. One of the major theories that emerged was that of the Big-Bang. With it follows many predictions of behaviour and properties of our Univers. What is it size? its content? its age? Those are few of the...
56. First measurement of the growth rate of structures with the SDSS-IV eBOSS DR14 quasar sample at z~1.5
Mme Pauline Zarrouk (CEA-Saclay)
31/05/2017 11:10
One of the biggest questions of contemporary cosmology is the origin of cosmic acceleration : does it arise from a constant vacuum energy as assumed in ΛCDM or from another form of dark energy that varies in time and space, or from a breakdown of general relativy on cosmological scales? To distinguish between these possibilities, one promising technique is to measure the growth rate of...
30. Search for heavy neutrinos with the T2K experiment
M. Mathieu Lamoureux (CEA Saclay, IRFU)
31/05/2017 12:00
Talk
Neutrinos
In the Standard Model of particle physics, neutrinos are massless. But, from neutrino oscillations experiments, we know that they are massive. The question is: how do they acquire these non-zero masses ? One of the possible explanations introduces new heavy neutrinos states, with a mass of few keV to GUT scale, that would mix with light neutrinos. Not only would they explain neutrino masses...
51. The STEREO experiment, a search for sterile neutrino at ILL
Aurélie Bonhomme (CEA)
31/05/2017 12:20
Talk
Neutrinos
Neutrinos - abundant but elusive particles - appear to be good candidates to look for physics beyond the Standard Model. Although our current understanding succeeds to compile most of the data into a three neutrino mixing framework, there are still experimental anomalies that need to be explained, such as the Reactor Antineutrino Anomaly (2011). The latter can be solved by introducing a light...
35. An innovative Neganov-Luke-assisted light detector for the sensitivity enhancement of CUORE experiment
Mlle Valentina NOVATI (CNRS-CSNSM)
31/05/2017 12:40
Talk
Neutrinos
The neutrinoless double-beta decay (0ν-DBD) is a hypothetical rare nuclear transition producing only two electrons in the final state. Its discovery would have important consequences, demonstrating the Majorana nature of neutrino, allowing the measurement of its absolute mass scale and proving the non-conservation of the lepton number. Nowadays CUORE - with its 988 TeO2-based...
50. CUPID-Mo: A Double beta decay experiment with Li<SUB>2</SUB><SUP>100</SUP>MoO<SUB>4</SUB> scintillating bolometers
Mlle Anastasiia Zolotarova (CEA/IRFU/SPP)
31/05/2017 13:00
Talk
Neutrinos
        Neutrinoless double beta decay is a hypothetical rare nuclear transition, whose observation can give us information about the neutrino absolute mass scale and hierarchy. The existence of this process will prove that lepton number conservation can be violated and consequently the Standard Model should be extended.

        The subject of my PhD...
66. D2I2
Claire Portail (Institut de physique nucléaire)
31/05/2017 14:45
67. Synapse
Mlle Anastasia Georgiadou (IPN)
31/05/2017 14:55
68. SFP
Antoine Laudrain (LAL-ATLAS)
31/05/2017 15:05
9. Development of new metrology protocols for chalcogenide materials related to process parameters
M. Walter BATISTA PESSOA (LETI CEA-GRENOBLE)
31/05/2017 16:45
Chalcogenide materials are composed of S, Se or Te elements from group VI of the periodic table. For these elements, the sequence of S, Se and Te shows that bonding changes from molecular, covalent, to metallic. They are receiving extensive interest not only for application in advanced memories (Phase Change RAM, Current Bridge RAM) and photovoltaics (i.e. CZTS: Cooper Zinc Tin Sulfide), but...
8. Residual Ion Dynamics in Electron Storage Rings
M. Alexis Gamelin (Laboratoire de l’Accélérateur Linéaire)
31/05/2017 17:05
Ions produced by ionization of the residual gas in electron storage rings can significantly degrade the performance of a machine and produce various beam instabilities. To cure more effectively these problems it is important to understand the ion dynamics in the accelerator. The ions undergo the effect of the electron beam crossing and go through strong transverse oscillations and a longitudinal...
59. Study of the electron transport for the FEL beam line COXINEL experiment using a beam produced by plasma laser acceleration.
M. Thomas ANDRE (Synchrotron SOLEIL)
31/05/2017 17:25
The COXINEL experiment aims to demonstrate the free electron laser amplification with an electron beam produced by laser plasma acceleration. For this, a transport line was designed and prepared at the Synchrotron SOLEIL. It consists of three permanent magnet quadrupoles with variable gradient (QUAPEVAs), a demixing chicane, a second set of electromagnetic quadrupoles and a 2 m undulator....
60. Study on X-ray diagnosis for phase distribution during corium-sodium interaction
Mlle Shifali SINGH (CEA, Cadarache)
31/05/2017 17:45
In case of a severe accident scenario in sodium-cooled fast reactors, the fuel in the core would melt, generating a hot mixture termed as corium. This corium will then be discharged into the sodium pool through the guide tubes. When the hot molten corium comes in contact with sodium, called Molten Fuel-Coolant Interaction (MFCI), it might generate a violent explosion. Such an explosion can be...
3. Quench Tests Analyses of the First JT-60SA Toroidal Field Coils
M. Yawei HUANG (CEA Saclay)
31/05/2017 18:05
**JT-60SA** is a fusion experiment which is jointly constructed by Japan and Europe, and which shall contribute to the early realization of fusion energy by providing support to the operation of ITER and by addressing key physics issues for ITER and DEMO. The JT-60SA is based on the existing infrastructure of JT-60U experiment and is upgraded by using **superconducting coils**. JT-60SA tokamak...
29. Polynomial Axial Expansion for 3D method of characteristics applied to neutron transport
M. Laurent Graziano (CEA)
31/05/2017 18:25
In the recent years a solver based on the Method of Characteristics (MOC) allowing the treatment of 3D extruded geometries has been developed inside the TDT module of APOLLO3®. The standard Step Characteristics (SC) approximation is used and results show an excellent agreement with Monte-Carlo simulations. However a fine mesh refinement is needed to converge the strong flux gradients...
17. Learning of the importance map in a direct Monte Carlo shielding calculation with the particle transport code TRIPOLI-4(R)
Michel Nowak (CEA)
31/05/2017 18:45
TRIPOLI-4® is a Monte Carlo code that simulates the transport of particles (Neutrons, Photons, Electrons) and provides reference solutions that are used to validate faster deterministic codes. In radiation shielding studies, engineers use Monte-Carlo codes to estimate radiation doses rate due to radioactive sources, given a description of the problem geometry. However, Monte Carlo methods may...
53. 2+1 Heavy Quark QCD Phase Transitions in Massive Landau-DeWitt Gauge
M. Jan MAELGER (CPhT)
Poster
We study the QCD phase diagram for 2+1 heavy quarks in the presence of an effective gluon mass term arising from the Gribov copy problem in standard Faddeev-Popov gauge fixing procedures. We compute both the Polyakov loop, which is an order parameter for the confinement/deconfinement transition, as well as an effective background gauge field potential to two loop order in Perturbation Theory....
16. Alpha clusterisation in Polonium 212
M. Etienne Dupont (CSNSM)
Poster
Describing nuclei with alpha particles had been very popular before these models were edged out by the shell model. But later some states in light isotopes like 16O and 20Ne have been described as “core + alpha” rotating systems, leading to a renewed interest in alpha clustering. Recently this kind of structure has been also discovered in 212Po via the high probability of dipolar...
47. Atomic Mass Evaluation 2016
M. Wenjia HUANG (CSNSM (IN2P3-CNRS &amp; UPS))
Poster
The atomic mass is a key for a better understanding of nuclear structure and nucleosynthesis process within stars. The atomic mass table is widely used in almost all domains of physics, especially in nuclear physics and astrophysics, and they are regarded as the most comprehensive and reliable source of atomic masses.The newest atomic mass table, AME2016, has been published recently[1,2]. Some...
55. Characterization of the planar pixel modules of the active and slim edge design for ATLAS Inner Detector Upgrade
M. Dmytro HOHOV (LAL Université Paris-Sud)
Poster
In the frame of the second phase of LHC (CERN) accelerator complex upgrade, during the long shutdown in ~ 2023, it’s planned to increase the beam luminosity up to  5×1034cm−2s−1 and collision energy up to 14 TeV in the center of mass to achieve the high-precision results in the project tasks. These conditions will lead to additional demands especially on an inner part of...
41. Complexation of actinides with organic ligands occurring in the environment: thermodynamic, structural and kinetic study
M. Mingjian HE (IPNO)
Poster
The application of nuclear technology in industry, research and medicine leads to the production of radionuclides that are likely to result in soil pollution especially with actinides, in the vicinity of uranium mining sites, radwaste disposal facilities, or after accidental spreading. The presence of organic molecules in the environment may favour the mobility of the radioelements up to...
39. Determination of the neutrino mass hierarchy with JUNO experiment
M. QINHUA HUANG (LLR-JUNO)
Poster
The Nobel Price in Physics 2015 was awarded to Takaaki Kajita and Arthur McDonald for "the discovery of neutrino oscillation, which shows that neutrinos have mass". However, the neutrino mass hierarchy of three mass eigenstates (ν1, ν2, ν3) remains unknown. The information of this mass hierarchy is believed to be accessible by measuring precisely the flavour oscillation of...
23. Development and optimization of mechanical polishing process for superconducting accelerating cavities
M. Oleksandr Hryhorenko (IPNO)
Poster
Accelerator performance, in particular the cavity quality factor and the accelerating gradient field, depends on the physical and chemical characteristics of the superconducting radio-frequency (SRF) cavity surface. The preparation of the cavity walls has been one of the major challenges in SRF accelerator technology. Even a single microscopic defect, in such large macroscopic structures,...
42. Development of a portable gamma imaging system for absorbed radiation dose control in targeted radionuclide therapy
Mlle Carlotta Trigila (IMNC CNRS/IN2P3, Univ. Paris Sud et Paris Diderot, Orsay, France.)
Poster
Targeted radionuclide therapy is still a developing area among the different treatment modalities against cancer but is one of the most used in the treatment of malign and benign diseases of thyroid. The large heterogeneity of absorbed doses in patients and the range of effects observed, both in terms of toxicity and response, demonstrate that an individualized dosimetry is essential for...
2. Electroweak Higgs Sector of Brane Worlds and Extra Dimensions
M. Florian NORTIER (Laboratoire de Physique Théorique d'Orsay)
Poster
In the Standard Model (SM) of Particle Physics, the electroweak (EW) symmetry breaking pattern is the less known and understood. With the discovery of a Higgs-like boson by the Large Hadron Collider (LHC) experiment in 2012, the Brout-Englert-Higgs (BEH) mechanism, which involves a new scalar field to break the EW gauge symmetry, seems to be at work in Nature. Nevertheless, the origin of the...
44. Frequency dependent squeezing
Mlle Angelique VOLLARD (LAL / CNRS)
Poster
The first gravitational waves signal was detected on the 14th september 2015 by the LIGO observatories. This first detection marked the beginning of a new kind of astronomy : gravitational waves astronomy. With this in prospect, it is important to enhance the sensitivity of gravitational waves detectors. Frequency dependent squeezing is a promising improvement which uses the rules of quantum...
24. Improvement of cross section representation models for core calculations
M. Esteban Szames (CEA)
Poster
In reactor analysis, deterministic calculations requires accurate nuclear cross section representation. Considering the thermal-hydraulic feedback and other dependencies at the core level allows for the simulation of normal and accidental conditions. The goal of this PhD program is to elaborate a high accuracy model for future reactor simulations aiming to improve the required input (lattice...
6. Influence of target thickness on the realease of radioactive atoms
M. Julien Guillot (IPNO - groupe NESTER)
Poster
A research program is developed with the installation ALTO (Accélérateur Linéaire et Tandem d'Orsay) at the Institut de Physique Nucléaire in Orsay to provide intense ion beams of new exotic neutron-rich nuclei. For this purpose, optimizing the fission products (PFs) release is a crucial step. Indeed, the first results demonstrated the correlation between the open porosity and the release...
27. Localization of bioactive metabolites in durable tropical tree Sextonia rubra (Lauraceae) with 2D and 3D TOF-SIMS imaging
Mlle Tingting Fu (IPN)
Poster
Many tropical tree species generate natural decay resistance by producing bioactive metabolites. Among them, Sextonia rubra (Lauraceae) is a widely exploited species for construction in French Guiana. Rubrynolide and rubrenolide, which are secondary metabolites isolated from the stem wood of S. rubra, exhibit potent antifungal and termiticidal activities that result in the exceptional...
31. Low Energy Bunch Compression With Dogleg Chicane
M. Ke WANG (LAL, Universite Paris Sud)
Poster
The ESCULAP project joins the photo injector PHIL with the High Power Laser LASERIX to perform a laser plasma wakefield acceleration (LPA) experiment. A prerequisite is that the electron beam (10pC,10MeV) has to be compressed longitudinally before being injected in the plasma cell from 2000fs (RMS) to less than 300fs (and later 100fs). To achieve such compression we present a solution based on...
19. Manifestation of triaxiality in 135,136Nd: transverse wobbling and chirality
M. Bingfeng LV (lv@csnsm.in2p3.fr)
Poster
Transverse wobbling bands are expected to exist in 135Nd, with a configuration involving one νh11/2 hole coupled to a triaxial core, and also in 136Nd, with a configuration involving two πh11/2 particles. Multiple chiral bands are also expected to exist in 135Nd. Therefore, to prove the wobbling character of a band precise angular distribution and polarization measurements of the ∆I = 1...
20. New photoinjector design of the high charge S-band ThomX accelerator
M. Luca Garolfi (Laboratoire de l'Accélérateur Linéaire (LAL))
Poster
We report the results of a recent beam dynamics study that has led to promising working points for the split ThomX photoinjector. ThomX is a back-scattering Thomson light source project that will use S-band electron Linac with tunable energy from 50 MeV to 70 MeV to produce high X-rays flux (10^11 - 10^13 ph/s) in the energy range from 45 keV to 90 keV. Since ThomX has been conceived to...
18. OPtimization analysis of PWR reactors in the framework of the introduction of renewable energies in the french energy mix
M. Mathieu Muniglia (CEA)
Poster
In the actual context of energetic transition, the increase of the intermittent renewable energies contribution (as wind farms or solar energy) is a major issue. On the one hand, the French government aims at increasing their part up to 30% by 2030, against 6% today. On the other hand, their intermittent production may lead to an important imbalance between production and consumption....
22. PREPARATION OF CVD DIAMOND DETECTOR FOR FAST LUMINOSITY MONITORING OF SUPERKEKB
Chengguo PANG (0633782655)
Poster
The SuperKEKB e + -e − collider aims to reach a very high luminosity of 8×10 35 cm −2 s −1 , using highly focused ultra- low emittance bunches colliding every 4ns. To meet the re- quirement of the dithering feedback system used to stabilise the horizontal orbit of the IP(Interaction Point), a relative precision of 10 −3 in 1ms is specified for the fast luminosity monitoring, which can be...
1. Progress of PrFeB Based Hybrid Cryogenic Undulators at SOLEIL
M. Amin Ghaith (PhD student)
Poster
Cryogenic Permanent Magnet Undulator (CPMU) takes advantage of the enhanced field performance of permanent magnets when cooled down to low temperature, enabling shorter period with sufficient magnetic field to achieve high brightness radiation in the X-ray domain. Several CPMUs have been manufactured at SOLEIL. The first CPMU of period 18 mm (U18), optimized with a phase error of 3.2° at 77 K,...
62. Search for dark matter signals with 10-year obsevations by H.E.S.S. towards the Galactic Centre
Mlle Lucia Rinchiuso (CEA)
Poster
The presence of dark matter in the Universe is nowadays widely supported by a large body of astronomical and cosmological observations. The central region of the Milky Way is expected to harbor a large amount of dark matter. Very-high-energy (>100 GeV) gamma-ray observations with the H.E.S.S. array of Imaging Atmospheric Cherenkov Telescopes are powerful probes to look for...
10. Search for the Lepton Universality Violation using b-baryons
M. Vitalii Lisovskyi (LAL)
Poster
Lepton universality is one of the most important ingredients of the Standard Model of particle physics (SM). It means that leptons (e.g., electrons and muons) behave in the same way, i.e., have the same couplings to gauge bosons. Several tests of the Lepton universality were performed up to date. Two previous measurements of LHCb, R_K and R_Kstar, show signs of deviations from the SM...
54. Search for the SM (and BSM) production of four top quarks in the ATLAS detector at the LHC
M. Thibault Chevalérias (CEA Saclay)
Poster
The top quark is the heaviest elementary particle we know. Therefore, it plays a very special role in the Standard Model of particle physics (SM). Its Yukawa coupling to the Higgs boson is close to one, which makes this particle a key element of many Beyond the Standard Model (BSM) theories. The LHC, located at CERN (Geneva, Switzerland) is a proton - proton collider with a center-of-mass...
40. Space-charge compensation in low energy beam transport lines
M. Frédéric Gérardin (CEA/Irfu/SACM)
Poster
The study of the dynamics of low energy beam transport line (LEBT) is one of the major challenges in the high intensity hadron accelerators field. At low energy, this dynamics is dominated by the charge space field which in many cases is nonlinear and can induce a halo formation, emittance growth and beam losses along the accelerator. However, a low energy ion beam induces ionization of...
11. Study of antiproton-proton annihilation reactions and experimental contribution to hadron polarimetry
Mlle ying wang (Institut de Physique Nucléaire Orsay)
Poster
This work, set in the framework of hadron physics, reports on a phenomenological and an experimental study dedicated to nucleon internal structure, both related to hadron electromagnetic form factor measurements in the time-like and in the space- like regions.
13. Study of charmonium production using decay to hadronic final states with the LHCb experiment
M. Andrii Usachov (LAL)
Poster
This work is devoted to charmonia prompt and b-decays production study via charmonia decays to ϕϕ and pp― in order to test existing Non-Relativistic QCD predictions. Using decays to ϕ-meson pairs, the inclusive production of χc0,1,2 in b-hadron decays is studied with pp collision data corresponding to an integrated luminosity of $\int\mathcal{L}dt=3.0\...
14. Study of key resonances in the 30P(p,γ)31S reaction in massive classical novae
Mlle Anne Meyer (Institut de Physique Nucléaire d'Orsay)
Poster
Classical novae outbursts are the third most energetic explosions in the Universe after gamma-ray bursts and supernovae. During this explosive burning, nucleosynthesis takes place and the newly synthesized material is ejected into the interstellar medium. In order to understand these objects, the study of presolar grains and γ-ray emitters are of specific interest since they can give direct...
45. The CMS Level-1 Vector Boson Fusion trigger for the LHC Run II
Mme Chiara Amendola (Laboratoire Leprince-Ringuet, Ecole polytechnique)
Poster
The CMS experiment implements a sophisticated two-level triggering system composed of Level-1, instrumented by custom-design hardware boards, and a software High-Level-Trigger. A new Level-1 trigger architecture with improved performance is now being used to maintain the thresholds that were used in LHC Run I for the more challenging luminosity conditions experienced during Run II. The...
32. WA105: A prototype of Long Baseline Neutrino Detector
M. philippe cotte (CEA Saclay)
Poster
Neutrino oscillations allow for CP violation in the leptonic sector thanks to the presence of a phase in the PMNS matrix. Still unmeasured today, this phase could explain why there is something instead of nothing in our universe. The DUNE experiment in the US, set to start around 2026, is designed to measure this phase. A first prototype of Double Phase Liquid Argon TPC is being built at CERN...
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