Results 71 to 80 of about 21,852 (288)

U(1)' solution to the mu-problem and the proton decay problem in supersymmetry without R-parity

open access: yes, 2008
The Minimal Supersymmetric Standard Model (MSSM) is plagued by two major fine-tuning problems: the mu-problem and the proton decay problem. We present a simultaneous solution to both problems within the framework of a U(1)'-extended MSSM (UMSSM), without
E. C. G. Stueckelberg   +7 more
core   +1 more source

Microwave Absorption for Detection of Dirac Fermions in SnTe Films

open access: yesAdvanced Materials Interfaces, EarlyView.
Microwave absorption can detect Dirac fermions in samples exposed to the atmosphere. Results showed that although topological surface states are robust against environmental degradation, they are not detectable by electrical transport measurements. Hence, microwave absorption can detect Dirac fermions even in samples whose surfaces have deteriorated ...
Wellington P. do Prado   +8 more
wiley   +1 more source

The impact of the transgenic revolution on aquaculture and biodiversity. A review

open access: yesRevista Científica, 2010
We discuss the aims and techniques of transgenics and examine some consequences of incorporating genetic modified organisms (GMs) into the aquaculture industry, as well as introducing them into native habitats. The detrimental effects of introducing
Julio Pérez   +3 more
doaj  

Search for pair-produced scalar and vector leptoquarks decaying into third-generation quarks and first- or second-generation leptons in pp collisions with the ATLAS detector

open access: yesJournal of High Energy Physics, 2023
A search for pair-produced scalar and vector leptoquarks decaying into quarks and leptons of different generations is presented. It uses the full LHC Run 2 (2015–2018) data set of 139 fb −1 collected with the ATLAS detector in proton–proton collisions at
The ATLAS collaboration   +2899 more
doaj   +1 more source

Exotic Discoveries in Familiar Places: Theory of the Onia and Exotics

open access: yes, 2016
This brief overview presents an introduction to the heavy-quark exotic hadron candidates, $X$, $Y$, $Z$, $P_c$, believed to be tetraquark and pentaquark states.
Lebed, Richard F.
core   +1 more source

ENDOMORPHISMS OF EXOTIC MODELS [PDF]

open access: yesGlasgow Mathematical Journal, 2018
AbstractWe calculate the endomorphism dga of Franke's exotic algebraic model for the K-local stable homotopy category at odd primes. We unravel its original abstract structure to give explicit generators, differentials and products.
Ellis, Eugenia   +3 more
openaire   +2 more sources

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

open access: yesAdvanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz   +5 more
wiley   +1 more source

New Approaches to Ecologically Based, Designed Urban Plant Communities in Britain: Do These Have Any Relevance in the United States?

open access: yesCities and the Environment, 2008
This paper discusses the reasoning behind the development of a new approach to designed urban planting with grasses, forbs and geophytes that has been undertaken at the University of Sheffield over the past 15 years.
James Hitchmough
doaj  

Search for light long-lived neutral particles that decay to collimated pairs of leptons or light hadrons in pp collisions at s $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector

open access: yesJournal of High Energy Physics, 2023
A search for light long-lived neutral particles with masses in the O(MeV–GeV) range is presented. The analysis targets the production of long-lived dark photons in the decay of a Higgs boson produced via gluon–gluon fusion or in association with a W ...
The ATLAS collaboration   +2863 more
doaj   +1 more source

Hunting exotics

open access: yes, 2012
In this work we study the $QQ\bar{n}\bar{n}$ systems from both four--quark and meson--meson molecule formalisms, arriving to consistent conclusions when the proper bases are chosen.
Caramés, Teresa F.   +2 more
core   +1 more source

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