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The emphasis in the developmet of theories with more than three spatial dimensions has recently shifted towards ``brane world'' picture, which assumes that ordinary matter (with possible exceptions of gravitons and other, hypothetic,…

High Energy Physics - Phenomenology · Physics 2010-12-17 V. A. Rubakov

The large difference between the Planck scale and the electroweak scale, known as the hierarchy problem, has been addressed in some models through the existence of extra spatial dimensions. A search for evidence of extra spatial dimensions…

High Energy Physics - Experiment · Physics 2015-06-03 Quentin Buat

A review of the discovery potential of LHC for new phenomena beyond the Standard Model (BSM) other than Supersymmetry in the early phase of running is presented. Topics covered include searches for extra dimensions in different scenarios…

High Energy Physics - Experiment · Physics 2008-08-01 Dimitri Bourilkov

String theory suggests modifications of our spacetime such as extra dimensions and the existence of a mininal length scale. In models with addidional dimensions, the Planck scale can be lowered to values accessible by future colliders.…

High Energy Physics - Phenomenology · Physics 2009-11-10 S. Hossenfelder , M. Bleicher , H. Stocker

One of the most stimulating recent ideas in particle physics involves a possibility that our universe has additional compactified spatial dimensions, perhaps as large as 1 mm. In this review, we discuss the results of recent experimental…

High Energy Physics - Experiment · Physics 2007-05-23 Greg Landsberg

Light sterile neutrinos are a popular extension of the Standard Model and are being discussed as a possible explanation for various neutrino oscillation anomalies, including the LSND, MiniBooNE, Reactor and Gallium anomalies. In order to…

High Energy Physics - Phenomenology · Physics 2019-09-04 Dominik Döring , Heinrich Päs

We use atomic spectra to extend pure Coulomb's law tests to larger masses. We interpret these results in terms of constraints for hidden sector photons. With existing data the bounds for hidden photons are not improved. However we find that…

High Energy Physics - Phenomenology · Physics 2010-11-03 Joerg Jaeckel , Sabyasachi Roy

Deviations from Newton's Inverse-Squared Law at the micron length scale are smoking-gun signals for models containing Supersymmetric Large Extra Dimensions (SLEDs), which have been proposed as approaches for resolving the Cosmological…

High Energy Physics - Phenomenology · Physics 2007-05-23 P. Callin , C. P. Burgess

The Deep Underground Neutrino Experiment (DUNE) is a leading experiment in neutrino physics which is presently under construction. DUNE aims to measure the yet unknown parameters in the three flavor oscillation case which includes discovery…

High Energy Physics - Phenomenology · Physics 2024-11-14 Kim Siyeon , Suhyeon Kim , Mehedi Masud , Juseong Park

The possibility that the accurately known value of the Z width might furnish information about the coupling of two neutrinos to the Majoron (Nambu-Goldstone boson of spontaneous lepton number violation) is proposed and investigated in…

High Energy Physics - Phenomenology · Physics 2009-11-07 S. Moussa , S. Nasri , F. Sannino , J. Schechter

Alternatives to the traditional grand unified theory seesaw for neutrino masses are briefly described. These include the possibility of large extra dimensions and various possibilities for models involving an extra U(1)' gauge symmetry. The…

High Energy Physics - Phenomenology · Physics 2011-03-23 Paul Langacker

In higher-dimensional theories, a graviton propagating in the bulk can follow a shorter path, known as a shortcut, compared to a photon propagating in a four-dimensional spacetime. Thus by combining the observations of gravitational waves…

General Relativity and Quantum Cosmology · Physics 2024-05-24 Zi-Chao Lin , Hao Yu , Yungui Gong

In brane world scenarios in which only gravity can propagate in the extra dimensions, effects on the gravitational force may be experimentally testable if there are two or three large extra dimensions. The strength of the force at distances…

High Energy Physics - Phenomenology · Physics 2015-06-25 Marc Sher , Kelly A. Sullivan

Neutrinos play a crucial role in many areas of physics from very short distances to astrophysics and cosmology. It is a long held believe that they are good probes of physics at the GUT scale. Recent developments have made it clear that…

High Energy Physics - Phenomenology · Physics 2014-11-17 John N. Ng

Atomic and molecular transitions for high Z objects in the early universe give bounds to the possible existence of extra spatial dimensions $D = 3+\epsilon$. We review the theory and present observational data, based on Lyman and Balmer…

Astrophysics · Physics 2007-05-23 Douglas J. Buettner , P. D. Morley , Ivan Schmidt

The aim of this talk is to provide non-experts with a brief and elementary introduction on the field of extra dimensions. The main motivation for extra dimensions relies on the more fundamental string theories that predict ten (or eleven)…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. Quiros

From the comparison between the experimental and theoretical results for the energy difference between 2s1/2 and 2p1/2 states in hydrogen and hydrogen-like ions with different values of Z, we estimate bounds for the presence of an extra…

High Energy Physics - Phenomenology · Physics 2019-03-06 Daniela Grandón , Alfredo Vega

Extra dimensions can be utilized to simplify problems in classical mechanics, offering new insights. Here we show a simple example of how the motion of a test particle under the influence of an inverse-quadratic potential in 1D is…

Classical Physics · Physics 2022-02-24 Trung Phan , Anh Doan

The spectral shape of reactor antineutrinos measured in recent experiments shows anomalies in comparison to neutrino reference spectra. New precision measurements of the reactor neutrino spectra as well as more complete input in nuclear…

High Energy Physics - Experiment · Physics 2016-12-22 Christian Buck , Antoine P. Collin , Julia Haser , Manfred Lindner

The phenomenological possibilities of the Randall-Sundrum non-compact extra dimension scenario with the AdS horizon increased to approximately a millimeter length, corresponding to an effective brane tension of TeV^4, are investigated. The…

High Energy Physics - Phenomenology · Physics 2009-10-31 Daniel J. H. Chung , Hooman Davoudiasl , Lisa Everett