Zobrazeno 1 - 10 of 123 pro vyhledávání: '"Jonathan Richard Ellis"'
1
Low-energy electron ionization mass spectrometer for efficient detection of low mass species
Autor: Andrew Jardine, Matthew Bergin, Bodil Holst, David J. Ward, NA von Jeinsen, Jonathan Richard Ellis, William Allison, Sam Lambrick
Publikováno v: Review of Scientific Instruments
The design of a high-efficiency mass spectrometer is described, aimed at residual gas detection of low mass species using low-energy electron impact, with particular applications in helium atom microscopy and atomic or molecular scattering. The instr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::58fa87e3c04dda947a9e43a2a0870cd6
https://hdl.handle.net/11250/2929833
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2
Gauge invariance and the Englert-Brout-Higgs mechanism in non-Hermitian field theories
Autor: Jonathan Richard Ellis, Dries Seynaeve, Jean Alexandre, Peter Millington
Publikováno v: Alexandre, J, Ellis, J, Millington, P & Seynaeve, D 2019, ' Gauge invariance and the Englert-Brout-Higgs mechanism in non-Hermitian field theories ', Physical Review D (Particles, Fields, Gravitation and Cosmology), vol. 99, no. 7, 075024 . https://doi.org/10.1103/PhysRevD.99.075024
Physical Review
We discuss $\mathcal{PT}$-symmetric Abelian gauge field theories, as well as their extension to the Englert-Brout-Higgs mechanism for generating a mass for a vector boson. Gauge invariance is not straightforward, and we discuss the different related
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d76e4ceb074ed829d3b8a275f867ff1e
http://cds.cern.ch/record/2633363
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3
THE COSMOLOGY OF DECAYING GRAVITINOS
Autor: Dimitri V. Nanopoulos, Subir Sarkar, Jonathan Richard Ellis
We consider the cosmological constraints on unstable particles with masses O( m W ). Constraints from the energy density during primordial nucleosynthesis, from subsequent entropy generation, and from perturbations of the microwave background are not
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3bd59df7f4c795fb217a9aa48caf267a
https://ora.ox.ac.uk/objects/uuid:ae1f5100-6711-4fc7-a1ce-f019154a5b67
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5
UNIVERSAL CALABI–YAU ALGEBRA: CLASSIFICATION AND ENUMERATION OF FIBRATIONS
Autor: F. Anselmo, Dimitri V. Nanopoulos, Jonathan Richard Ellis, G. Volkov
Publikováno v: Modern Physics Letters A. 18:699-710
We apply a universal normal Calabi-Yau algebra to the construction and classification of compact complex $n$-dimensional spaces with SU(n) holonomy and their fibrations. This algebraic approach includes natural extensions of reflexive weight vectors
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2d68d4c8f2415d45f9a9587eca334645
https://doi.org/10.1142/s0217732303009769
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6
The NUHM2 after LHC Run 1
Autor: Jonathan Richard Ellis, Richard Cavanaugh, Henning Flacher, Sudhir Malik, Oliver Buchmueller, D. Martinez Santos, Matthew Citron, Georg Weiglein, J. Marrouche, Matthew J. Dolan, Keith A. Olive, K. J. de Vries, A. De Roeck, Sven Heinemeyer
Publikováno v: The European physical journal / C 74(12), 3212 (2014). doi:10.1140/epjc/s10052-014-3212-9
European Physical Journal C. Particles and Fields, 74(12), 3212-3212. Springer New York
Buchmueller, O 2014, ' The NUHM2 after LHC Run 1 ', European Physical Journal C. Particles and Fields, vol. 74, no. 12, pp. 3212-3212 . https://doi.org/10.1140/epjc/s10052-014-3212-9
European physical journal : C : particles and fields
The European Physical Journal. C, Particles and Fields
Buchmueller, O, Cavanaugh, R, Citron, M, Roeck, A D, Dolan, M J, Ellis, J R, Flaecher, H, Heinemeyer, S, Malik, S, Marrouche, J, Santos, D M, Olive, K A, Vries, K J D & Weiglein, G 2014, ' The NUHM2 after LHC Run 1 ', European Physical Journal C: Particles and Fields, vol. 74, 3212 . https://doi.org/10.1140/epjc/s10052-014-3212-9
European Physical Journal C
We make a frequentist analysis of the parameter space of the NUHM2, in which the soft supersymmetry (SUSY)-breaking contributions to the masses of the two Higgs multiplets, $m^2_{H_{u,d}}$, vary independently from the universal soft SUSY-breaking con
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f5aab7ecd04f14a350a7e3ad8b42545
https://bib-pubdb1.desy.de/record/205229
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7
A Search in Gamma‐Ray Burst Data for Nonconstancy of the Velocity of Light
Autor: Dimitri V. Nanopoulos, Jonathan Richard Ellis, K. Farakos, Nikolaos Mavromatos, Vasiliki A Mitsou
Publikováno v: The Astrophysical Journal. 535:139-151
We discuss possible tests of the constancy of the velocity of light using distant astrophysical sources such as gamma-ray bursters (GRBs), Active Galactic Nuclei (AGNs) and pulsars. This speculative quest may be motivated by some models of quantum fl
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::df57bc58344b6704564d7075c67c06a9
https://doi.org/10.1086/308825
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8
Neutrino textures in light of Super-Kamiokande data and a realistic string model
Autor: George K. Leontaris, Smaragda Lola, Jonathan Richard Ellis, Dimitri V. Nanopoulos
Publikováno v: The European Physical Journal C. 9:389-408
Motivated by the Super-Kamiokande atmospheric neutrino data, we discuss possible textures for Majorana and Dirac neutrino masses within the see-saw framework. There are two main purposes of this paper: first, to gain intuition into this area from a p
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4fab05c6b90ef994334bd81b4c6720be
https://doi.org/10.1007/s100520050032
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9
Haggling over the fine-tuning price of LEP
Autor: M. Olechowski, Jonathan Richard Ellis, Piotr H. Chankowski, Stefan Pokorski
Publikováno v: Nuclear Physics B. 544:39-63
We amplify previous discussions of the fine-tuning price to be paid by supersymmetric models in the light of LEP data, especially the lower bound on the Higgs boson mass, studying in particular its power of discrimination between different parameter
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b7296232caab924d0f0a8d32ab0ba67
https://doi.org/10.1016/s0550-3213(99)00025-5
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10
Pursuing interpretations of the HERA large-Q2 data
Autor: Jonathan Richard Ellis, Gian F. Giudice, Michelangelo L. Mangano, Smaragda Lola, G. Altarelli
Publikováno v: Nuclear Physics B. 506:3-28
We explore interpretations of the anomaly observed by H1 and ZEUS at HERA in deep-inelastic e^+ p scattering at very large Q^2. We discuss the possibilities of new effective interactions and the production of a narrow state of mass 200 GeV with lepto
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::110690bf60e99b6c8ad58de1de09bce9
https://doi.org/10.1016/s0550-3213(97)88964-x
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