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Publications associées (31)

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Asymptotic scale invariance and its consequences

Mikhail Chapochnikov

Scale invariance supplemented by the requirement of the absence of new heavy particles may play an important role in addressing the hierarchy problem. We discuss how the Standard Model may become scale invariant at the quantum level above a certain value o ...

American Physical Society2019

Dilaton-assisted generation of the Fermi scale from the Planck scale

Andrey Shkerin

In scale-invariant theories of gravity the Planck mass M-p, which appears due to spontaneous symmetry breaking, can be the only scale at the classical level. It was argued that the second scale can be generated by a quantum nonperturbative gravitational ef ...

American Physical Society2019

Tests and developments of a long-pulse high-power 170 GHz absorbing matched load

Timothy Goodman, Stefano Alberti, Jean-Philippe Hogge, Damien Fasel, Francesca Maria Poli, Francisco Sanchez, Ioannis Pagonakis

The future EC systems will consist of several gyrotron sources providing MW-level millimeter wave power at a frequency around or above 170 GHz. The development of matched loads is necessary to test the new sources, the components for the transmission lines ...

ELSEVIER SCIENCE SA2019

Longitudinal analysis of white matter and cortical lesions in multiple sclerosis

Tobias Kober, Meritxell Bach Cuadra, Cristina Granziera

Purpose: The goals of this study were to assess the performance of a novel lesion segmentation tool for longitudinal analyses, as well as to validate the generated lesion progression map between two time points using conventional and non-conventional MR se ...

2019

FCC Physics Opportunities: Future Circular Collider Conceptual Design Report Volume 1

Yi Zhang, Jan Steggemann, Hua Zhang, Elena Graverini, Jeffrey Alan Hubbell, Pierluigi Bruzzone, Jean-Michel Sallese, Mingkui Wang, Luca Rossi, Mikhail Chapochnikov, Thomas Rizzo, Rui Ning Wang, Mathias Oleg Knecht, Doohyun Kim, Yu Bai, Simon Van Mulders, Tatiana Pieloni, Nathalie Sophie Adeline Serra, Shourya Dutta Gupta, Juan Federico Esteban Müller, Philippe Schwaller, Xabier Sarasola Martin, Andrea Wulzer, Florian Patrick Marie Daniel De la Barre De Nanteuil, Rahul Kumar Gupta, Xavier Buffat, Michele Cascella, Fabio Avino, Andrey Denisov, Nicolas Andreini, Michael Schenk, Benedikt Moser, Anatole von Lilienfeld, Lorena Gonçalves de Alcântara e Freitas Krikler, Alexej Grudiev, José Luis Abelleira Fernández, Rafael Amorim Leandro De Castro Amoedo, Mukesh Kumar Tripathi, Francesco Cerutti, Sondre Vik Furuseth, Roberto Franceschini, Marco Drewes, Dragos-Adrian Seredinschi, Giovanni Migliorati, Vincenzo D'Auria, Ting-Yu Lee, Leonid Kahle, Luca Vecchi, Javier Barranco Garcia, Shang-Jung Wu, Guang Li, Alban Sublet, Darius Constantin Merk, Roberto Contino, Claudia Tambasco, Delio Aleardo Vicini, Xingyu Wu, Pablo Marcelo Perez Garcia, Jairo Camilo Quijano Perez, Andrea Thamm, Georgi Gorine, Jun Gu, Candice Megan T Young, Wanderson Oliveira Da Silva, Bernhard Auchmann, Léon Van Riesen-Haupt, Marc-Olivier Sauvain, Leonid Rivkin, Alexandra Sarabando de Carvalho, Soumya Banerjee, Agnieszka Chmielinska, Kim-Manuel Klein, Amirhossein Saba Shirvan, Craig Nowell, Peter Michael Vogel, Eva Maria Rodriguez Franco, José Luis Rivera Gutiérrez, Florent Philippe Maurice Duval, Lotta Maria Mether, Özdemir Can Kara, Franco Moretti, Charlotte Lorin, Sandra Aumon, Karin Irmgard Löw, Lucia Jimenez Rojo, Caroline Antonioli Pletscher, Emilie Jocelyne Marc Solange Collot, Mathias Béguin, Beat Mueller, Abdel Perez Hernandez, Dora Patricia Valente Salgueiro, Michael Andrew Theodore Fowler, Tobias Hurth, Arturo Rivetti, Maria Rosaria Antonelli, Maximilian Nikolaus Bauer, Jie Gao

We review the physics opportunities of the Future Circular Collider, covering its e(+)e(-), pp, ep and heavy ion programmes. We describe the measurement capabilities of each FCC component, addressing the study of electroweak, Higgs and strong interactions, ...

2019

Euclidean classical solutions in quantum field theory and gravity: Higgs vacuum metastability and the hierarchy problem

Andrey Shkerin

The thesis is dedicated to two groups of questions arising in modern particle physics and cosmology. The first group concerns with the problem of stability of the electroweak (EW) vacuum in different environments. Due to its phenomenological significance, ...

EPFL2018

Gravity, scale invariance and the hierarchy problem

Mikhail Chapochnikov, Andrey Shkerin

Combining the quantum scale invariance with the absence of new degrees of freedom above the electroweak scale leads to stability of the latter against perturbative quantum corrections. Nevertheless, the hierarchy between the weak and the Planck scales rema ...

Springer Nature2018

Gray-matter-specific MR imaging improves the detection of epileptogenic zones in focal cortical dysplasia: A new sequence called fluid and white matter suppression (FLAWS)

Xin Chen, Tobias Kober, Thomas Yu

Objectives: To evaluate the diagnostic value and characteristic features of FCD epileptogenic zones using a novel sequence called fluid and white matter suppression (FLAWS). ...

ELSEVIER SCI LTD2018

Equilibrium reconstruction in an iron core tokamak using a deterministic magnetisation model

Olivier Sauter, Martinus Adela Maria Gijs, Jonathan Graves, Ambrogio Fasoli, Stefano Coda, Basil Duval, Henri Weisen, Richard Pitts, Yves Martin, Javier García Hernández, Duccio Testa, Miguel Fernández Ruiz, Nicola Vianello, Robin Humphry-Baker, Sun Hee Kim, Federico Nespoli, Patrick Blanchard, Alessandro Pau, David Pfefferlé, Davide Galassi, Jonathan Marc Philippe Faustin, Cristian Sommariva, Hamish William Patten, Samuel Lanthaler, Jan Horacek, Yann Camenen, Bruno Emanuel Ferreira De Sousa Correia, José Pedro Rebelo Ferreira Marques, Mikhail Maslov, Marco Wischmeier, Dalziel Joseph Wilson, Liang Yao, Daniel Scott Alessi, Arnout Lodewijk M Beckers, Ana Francisca Leal Silva Soares, Jonnathan Cesar Hidalgo Acosta, Antonio José Pereira de Figueiredo, Partha Dutta, Pierre-Thomas Paul Brun, Pedro Camilo de Oliveira e Silva, Alberto Hernando de Castro, Julio Rodriguez, Vlad Trifa, Li Shuai, Rebecca Hill

In many tokamaks ferromagnetic material, usually referred to as an iron-core, is present in order to improve the magnetic coupling between the solenoid and the plasma. The presence of the iron core in proximity to the plasma changes the magnetic topology w ...

2018

Towards a non-perturbative approach to the Hierarchy problem

Andrey Shkerin

In this report, based on [1], we suggest that the hierarchy between the Electroweak (EW) and the Planck scales can emerge due to a nonperturbative effect that relates low-energy and strong-gravity physics. In this mechanism, the EW scale results from an ex ...

EDP SCIENCES2018

Electroweak vacuum stability in the Higgs-Dilaton theory

Andrey Shkerin

We study the stability of the Electroweak (EW) vacuum in a scale-invariant extension of the Standard Model and General Relativity, known as a Higgs-Dilaton theory. The safety of the EW vacuum against possible transition towards another vacuum is a necessar ...

Springer Nature2017