“…Limits are placed on the production of new heavy bosons coupling to DM particles. For a scenario with purely vector-like or purely axial-vector-like flavor changing neutral currents, mediator masses between 0.20 and 1.75 TeV are excluded at 95\pct confidence level, given a sufficiently small DM mass. …”
Enlace del recurso

“…Additional to gravity this new very weak interaction between the visible and dark sector could be mediated either by a scalar ($S_\mu$) or $U'(1)$ gauge bosons ($Z_\mu$) interacting with ordinary muons. …”
Enlace del recurso

“…Limits are also set on the production of a heavy scalar or pseudoscalar in a type II 2HDM scenario, with exclusions in the mass ranges of 350-470 GeV and 350-550 GeV for heavy scalar and pseudoscalar bosons, respectively, for the 2HDM scenarios considered.…”
Enlace del recurso

“…--HTML--><p><span style="color:#4b4b4b">New resonances decaying into pairs of quarks or gluons appear in a variety of new physics models from simple gauge extensions of the standard model to Grand Unified Theories. New gauge bosons can play the role of Dark Matter mediators. …”
Enlace del recurso

“…It is designed to detect light, weakly-interacting particles produced in the decay of neutral pions such as dark photons, dark Higgs bosons, sterile neutrinos, and axion-like particles. …”
Enlace del recurso

“…Let us mention some of the fields of expertise of Alberto Ibort: Geometric Mechanics; Constrained Systems; Variational Principles; Multisymplectic structures for field theories; Super manifolds; Inverse problem for Bosonic and Fermionic systems; Quantum Groups, Integrable systems, BRST Symmetries; Implicit differential equations; Yang-Mills Theories; BiHamiltonian Systems; Topology Change and Quantum Boundary Conditions; Classical and Quantum Control; Orthogonal Polynomials; Quantum Field Theory and Noncommutative Spaces; Classical and Quantum Tomography; Quantum Mechanics on phase space; Wigner-Weyl formalism; Lie-Jordan Algebras, Classical and Quantum; Quantum-to-Classical transition; Contraction of Associative Algebras; contact geometry, among many others. …”
Enlace del recurso
Enlace del recurso

“…One of the promising extension is to introduce Supersymmetry (SUSY), which is a symmetry between fermions and bosons. When SUSY is considered, partners of all the SM particles (super-partners) are introduced and these particles have been searched. …”
Enlace del recurso

“…Besides gradually reviewing many fundamental notions, the book presents several case studies relevant to physics analyses underway at the LHC, including the lepton-antilepton decays of vector states (Drell–Yan, Z and W bosons, quarkonia, etc.). The book also offers a detailed discussion of cascade decays, where the vector particle is a daughter of another particle, as well as a survey of typical angular distributions of particles of any integer or half-integer spin. …”
Enlace del recurso
Enlace del recurso

“…If Dark Matter interacts weakly with the Standard Model (SM) it could be produced at the Large Hadron Collider (LHC) experiments, escaping the detector and leaving a WIMPs are potentially pair-produced in pp collisions at the Large Hadron Collider (LHC).To identify events with DM, additional SM particle(s) (Z,W and h bosons, jet, quarks...) need to be produced in association with DM in a pp collision. …”
Enlace del recurso

“…As expected the graviphotons and some of the gauge bosons become massive in N=1 vacua. At some special points of the moduli space some of the N=4 states with non-zero winding numbers and with spin 0 and {1/2} become massless chiral superfields of the unbroken N=1 supersymmetry. …”
Enlace del recurso

“…We investigate the effective worldvolume theories of branes in a background given by (the bosonic sector of) 10-dimensional massive IIA supergravity (``massive branes'') and their M-theoretic origin. …”
Enlace del recurso
Enlace del recurso

“…From approximately 3 million hadronic decays of Z bosons recorded with the ALEPH detector at LEP, a sample of 410 +/- 32 B0bar -> D*+ l- nubar candidates is selected, where l- is either an electron or a muon. …”
Enlace del recurso
Enlace del recurso

“…In addition, the chiral Lagrangian L^6 produces direct couplings with the W-bosons. Due to these unknown couplings, one can always add linear terms in q^2 to the predictions of the form factor f_-(q^2). …”
Enlace del recurso
Enlace del recurso

“…Their interpretation is based on exchanges of virtual weak neutral Z_0 bosons between the electrons and the atomic nucleus. …”
Enlace del recurso

“…The radion is the lightest new particle although its mass is already at about 1/3 of the mass of the lightest resonances, the KK states of the gauge bosons. We examine carefully various issues that can arise for extreme choices of parameters such as the possible reintroduction of the hierarchy problem, the onset of nonperturbative physics due to strong IR curvature or the creation of new hierarchies near the Planck scale. …”
Enlace del recurso
Enlace del recurso

“…$\pm$0.3(lumi.) pb, where the total cross section is defined with both $Z$ bosons with mass between 66 GeV and 116 GeV. This is consistent with the Standard Model expectation of 7.4$\pm$0.4 pb.…”
Enlace del recurso

“…However, degenerate quantum gases involve massive bosonic and fermionic atoms, not massless photons. …”
Enlace del recurso
Enlace del recurso

“…Supersymmetry is a proposed extension to the Standard Model that would solve some of its shortcomings by introducing a relation between fermions and bosons through the existence of a supersymmetric partner to every particle in the Standard Model. …”
Enlace del recurso

“…Juli 2012 stellt ein historisches Datum für das Europäische Kernforschungszentrum CERN in Genf dar: die Verkündung der Entdeckung des letzten, vorhergesagten, noch fehlenden und lange gesuchten Elementarteilchens, des Higgs-Bosons. Ein Jahr später kommen im Rahmen der Konferenz des Zentrums für interdisziplinäre Forschung (ZiF) in Bielefeld eine Vielzahl der mit dem Großprojekt am CERN verbundenen Wissenschaftler zusammen, um nicht nur über die Entdeckung des Teilchens, sondern vor allem über die Realisierung und Bedeutung eines derart ungeheuren Unterfangens für solch ein wissenschaftliches Großprojekt zu berichten. …”
Enlace del recurso

“…Combining all processes together (including single production), the lower mass limits range from $400~\mathrm{GeV}$ to $1800~\mathrm{GeV}$, depending on the VLQ branching fractions (BF) to W, Z or H bosons and the electroweak single-production strength. …”
Enlace del recurso