CERN Accelerating science

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1.
Gravitational waves from first-order cosmological phase transitions: lifetime of the sound wave source / Ellis, John (King's Coll. London ; CERN ; NICPB, Tallinn) ; Lewicki, Marek (King's Coll. London ; Warsaw U. (main)) ; No, José Miguel (U. Autonoma, Madrid (main) ; Madrid, IFT)
We study particle-physics models for a first-order phase transition in the early universe, including models with polynomial potentials both with and without barriers at zero temperature, and Coleman-Weinberg-like models with potentials that are classically scale-invariant. [...]
arXiv:2003.07360 ; KCL-PH-TH/2020-04 ; CERN-TH-2020-016 ; IFT-UAM/CSIC-20-35.
- 33 p.
Fulltext
2.
Gravitational wave energy budget in strongly supercooled phase transitions / Ellis, John (King's Coll. London ; CERN ; NICPB, Tallinn) ; Lewicki, Marek (King's Coll. London) ; No, José Miguel (Madrid, IFT) ; Vaskonen, Ville (King's Coll. London)
We derive efficiency factors for the production of gravitational waves through bubble collisions and plasma-related sources in strong phase transitions, and find the conditions under which the bubble collisions can contribute significantly to the signal. We use lattice simulations to clarify the dependence of the colliding bubbles on their initial state. [...]
arXiv:1903.09642; KCL-PH-TH/2019-32; CERN-TH-2019-032; IFT-UAM/CSIC-19-32.- 2019-06-10 - 25 p. - Published in : JCAP 06 (2019) 024 Fulltext: PDF;
3.
On the Maximal Strength of a First-Order Electroweak Phase Transition and its Gravitational Wave Signal / Ellis, John (King's Coll. London ; CERN ; NICPB, Tallinn) ; Lewicki, Marek (King's Coll. London) ; No, José Miguel (King's Coll. London ; Madrid, IFT)
What is the maximum possible strength of a first-order electroweak phase transition and the resulting gravitational wave (GW) signal? While naively one might expect that supercooling could increase the strength of the transition to very high values, for strong supercooling the Universe is no longer radiation-dominated and the vacuum energy of the unstable minimum of the potential dominates the expansion, which can jeopardize the successful completion of the phase transition. After providing a general treatment for the nucleation, growth and percolation of broken phase bubbles during a first-order phase transition that encompasses the case of significant supercooling, we study the conditions for successful bubble percolation and completion of the electroweak phase transition in theories beyond the Standard Model featuring polynominal potentials. [...]
arXiv:1809.08242; KCL-PH-TH/2018-46; CERN-TH/2018-197; IFT-UAM/CSIC-18-94.- 2018-09-21 - 36 p. - Published in : JCAP 04 (2019) 003 Fulltext: PDF;
4.
Long-Lived Particles at the Energy Frontier: The MATHUSLA Physics Case / Curtin, David (Toronto U.) ; Drewes, Marco (Louvain U., CP3) ; McCullough, Matthew (CERN) ; Meade, Patrick (YITP, Stony Brook) ; Mohapatra, Rabindra N. (Maryland U.) ; Shelton, Jessie (Illinois U., Urbana) ; Shuve, Brian (Harvey Mudd Coll. ; SLAC) ; Accomando, Elena (Southampton U.) ; Alpigiani, Cristiano (Washington U., Seattle) ; Antusch, Stefan (Basel U.) et al.
We examine the theoretical motivations for long-lived particle (LLP) signals at the LHC in a comprehensive survey of Standard Model (SM) extensions. LLPs are a common prediction of a wide range of theories that address unsolved fundamental mysteries such as naturalness, dark matter, baryogenesis and neutrino masses, and represent a natural and generic possibility for physics beyond the SM (BSM). [...]
arXiv:1806.07396; FERMILAB-PUB-18-264-T.- 2019-10-02 - 133 p. - Published in : Rep. Prog. Phys. 82 (2019) 116201 Fulltext: 1806.07396 - PDF; fermilab-pub-18-264-t - PDF; External link: Fermilab Library Server (fulltext available)
5.
The Diboson Excess: Experimental Situation and Classification of Explanations; A Les Houches Pre-Proceeding / Brehmer, Johann (U. Heidelberg, ITP) ; Brooijmans, Gustaaf (Columbia U.) ; Cacciapaglia, Giacomo (Lyon, IPN) ; Carmona, Adrian (CERN) ; Chivukula, R.Sekhar (Michigan State U.) ; Delgado, Antonio (Notre Dame U.) ; Goertz, Florian (CERN) ; Hewett, JoAnne L. (SLAC) ; Katz, Andrey (CERN ; Geneva U.) ; Kopp, Joachim (Mainz U., Inst. Phys. ; U. Mainz, PRISMA) et al.
We examine the `diboson' excess at $\sim 2$ TeV seen by the LHC experiments in various channels. [...]
arXiv:1512.04357 ; CERN-PH-TH-2015-297 ; CERN-PH-TH-2015-297.
- 2015. - 37 p.
Preprint - Preprint

See also: similar author names
3 No, J
11 No, J M
6 No, J.M.
7 No, Jong-Seon
2 No, Jose
6 No, Jose M
1 No, Jose M.
22 No, Jose Miguel
1 no, J M López-Casta
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