The Standard Model and Beyond 25
Mass hierarchy and physics beyond the Standard Model
... 2. New extra large transverse dimensions and low scale quantum gravity,. The main experimental signal is gravitational radiation in the bulk from any physical process on the world-brane [25]. 3. Genuine string and ...
10
Lepton Flavor Violation Phenomenology Beyond the Standard Model
... The precise determination of the CKM matrix elements is of great importance. Several measurements severely constrain the magnitudes and phases of possible NP contributions to flavor-changing interactions. Up to date, the ...
117
KINEMATIC ENDPOINT VARIABLES AND PHYSICS BEYOND THE STANDARD MODEL
... radius (2.2 cm) and radiation length (0.89 cm). These properties allow for a very compact calorimeter. Lead tungstate crystals are also very fast, releasing 80 percent of scintillation light within 25 ns of an ...
154
Beyond the Standard Model Higgs Physics using the ATLAS Experiment
... E miss T sin( ∆ φ min ), if ∆ φ min < π/2 E miss T if ∆ φ min > π/2 (1) where ∆ φ min is the minimum di ff erence in azimuthal an- gle, φ, between a lepton or a jet with p T > 25 GeV and the missing transverse ...
5
Beyond Standard Model Higgs boson physics with the ATLAS experiment at the LHC
... The γγ mass range of this search is constrained by trigger and background estimation requirements from the low mass side and by the data statistics in the high mass side. Upper limits on the fiducial cross section times ...
6
Probing the Beyond the Standard Model Higgs Sector using the ATLAS Detector
... by pulling the TTBAR_SHOWERGEN NP by 51 −0.07σ. The corresponding TTBAR_SHOWERGEN value in the combined fit is close to this, −0.1σ, suggesting that TTBAR_SHOWERGEN is still primarily correcting the top modelling in this ...
323
Searching for beyond the Standard Model physics using direct and indirect methods at LHCb
... Reconstructed tracks in the VELO are used to construct the PVs, the resolution of each PV is highly dependent upon the number of tracks coming from the vertex. Figure 3.4 shows that for a 25-track vertex, the ...
146
Beyond the Standard Model Physics
... 4.2 The Higgs Boson as a composite Nambu-Goldstone boson In composite Higgs models a light Higgs boson emerges as the bound state of a strongly interacting sector and is not an elementary field. These models interpolate ...
82
Physics Beyond the Standard Model
... the theory is naturally equipped with a cut-off scale. We will be left with a path integral for the light fields, but with a complicated lagrangian that is non-local in space and time. But since we are only interested in ...
30
A Quest for the Physics Beyond the Cosmological Standard Model
... minimal model, with just a single massive Dirac fermion for the dark matter and a massless dark photon, is consistent with limits obtained from the number of relativistic degrees of freedom at BBN, with relatively ...
130
Photonics, Particle Accelerators and beyond the Standard Model
... This behaviour is predominantly determined by the dis- order in ring 1 of the rods only. Examination of the re- sults show that a 1% disorder in ring 1 has a greater effect than a 10% disorder in all other rods. We have ...
38
Baryon Number Violation beyond the Standard Model
... In Chapter 3 we concentrate on finding the minimal renormalizable models with just a single scalar leptoquark added to the standard model particle spectrum. As in the previous case, we impose the condition ...
123
Some New Particles beyond the Standard Model
... B-L model at Large Hadrons Collider is presented using Monte Carlo si- mulation ...B-L model is one of the scenarios proposed to add an extension of the standard ...B-L model predicts the ...
6
Beyond the Standard Model: from neutrinos to neutralinos
... 1. The origin of mass - the origin of the weak scale, its stability under radiative corrections, and the solution to the hierarchy problem (most urgent problem of LHC) 2. The quest for unification - the question of ...
Search for Higgs bosons beyond the Standard Model
... 6 Resonant Production of Higgs Pairs In the SM, the rate of Higgs pair production is very small, and beyond experimental reach with the currently available integrated luminosity recorded at the LHC. But heavy ...
9
Physics beyond the Standard Model from hydrogen spectroscopy
... physics beyond the Standard Model, in terms of fifth forces or quintessence, in terms of extra dimensions, or as any other phenomenon beyond the Stan- dard ...
12
Topics in particle physics and cosmology beyond the standard model
... a model that exhibited a non-zero VEV for the fermion bilinear ¯ ...the standard model, but by a celebrated result CPT must be an invariance of any reasonable theory (see [41] and references ...
125
Forward Physics at the LHC: within and beyond the Standard Model
... Many physics scenarios beyond the SM, with novel interac- tions and/or particles, lead to modifications of the gauge boson self-interaction vertices. A process well-suited to testing the triple WW γ vertex is the ...
10
Pair Production of Beyond the Standard Model Higgs Bosons
... This analysis can be performed now also for the MCHM10 with fermionic top and bottom partners where the larger parameter space allows for more freedom. In addition to the projected sensitivities on the Higgs couplings, ...
10
Neutrino mass implications for physics beyond the Standard Model
... the Standard Model. Using the e¤ective theory, we derive model-independent, "naturalness" upper bounds on the magnetic moments of Dirac neutrinos and Majorana neutrinos generated by physics above the ...
93