209916255
Muon Detection in CMS: From the Detector Commissioning to the Standard Model Higgs Search
202135142
Local Muon Reconstruction in the Drift Tube Detectors
59482524
Measurement of Drift Velocity in the CMS Barrel Muon Chambers at the CMS Magnet Test Cosmic Challenge
This note reports the results of the analysis performed on the data collected by the CMS Barrel Muon system during the Magnet Test-Cosmic Challenge, aimed to study the Drift Tube chambers behavior at the nominal value of the CMS magnetic field. In particular, the analysis is devoted to the study of the drift velocity in the various equipped regions of the apparatus. It is shown that the drift velocity is significantly affected by the presence of a residual magnetic field in the chamber volume only in the innermost stations, MB1, of Wheel+2; where the maximal variation inside the chamber is of 4 percent, which does not prevent a good functionality of the DT trigger even in this most critical region.
124763536
Calibration of the CMS magnetic field using cosmic muon tracks
The Compact Muon Solenoid (CMS) [1] is a general-purpose detector whose main goal is to explore physics at the TeV scale by exploiting the proton-proton collisions provided by the Large Hadron Collider (LHC) [2] at CERN. During October-November 2008, the CMS Collaboration conducted a data-taking exercise known as the Cosmic Run At Four Tesla (CRAFT) [3]: 270 million cosmic ray triggered events have been recorded with all installed detector systems participating and with the solenoid at a central magnetic flux density of 3.8 T. Using these data it was possible for the first time to probe the magnetic field in the steel of the barrel return yoke using reconstructed muon tracks. The CMS silicon tracker is located inside the superconducting coil of the CMS magnet.
11160721
Higgs at LHC
An overview of recent theoretical results on the Higgs boson and its discovery strategy at ATLAS and CMS will be presented, focusing on the main Higgs analysis effective with low integrated luminosity (less than 30 fb^-1).
112424559
W and Z cross sections at LHC
123613557
MULTI-VORTICES WITH LARGE MAGNETIC FLUX
14377742
Light non-Abelian monopoles and generalized r-vacua in supersymmetric gauge theories
Abstract We study a class of N = 1 supersymmetric U ( N ) gauge theories and find that there exist vacua in which the low-energy magnetic effective gauge group contains multiple non-Abelian factors, ∏ i SU ( r i ) , supported by light monopoles carrying the associated non-Abelian charges. These nontrivially generalize the physics of the so-called r-vacua found in softly broken N = 2 supersymmetric SU ( N ) QCD, with an effective low-energy gauge group SU ( r ) × U ( 1 ) N − r . The matching between classical and quantum ( r 1 , r 2 , … ) vacua gives an interesting hint about the non-Abelian duality.
54188675
Baby Skyrme model, near-BPS approximations, and supersymmetric extensions
We study the baby Skyrme model as a theory that interpolates between two distinct BPS systems. For this a near-BPS approximation can be used which, however, involves a small deviation from each of the two BPS limits. We provide analytical explanation and numerical support for the validity of this approximation. We then study the set of all possible supersymmetric extensions of the baby Skyrme model with ${\cal N}=1$ and the particular ones with extended ${\cal N}=2$ supersymmetries and relate this to the above mentioned almost-BPS approximation.
118710448
Magnetic bags and black holes
Abstract We discuss gravitational magnetic bags, i.e., clusters of large numbers of monopoles in the presence of gravitational effects. Physics depends on the dimensionless ratio between the vev of the Higgs field at infinity and the Planck mass. We solve the equations for the gravitational bags, and study the transition from monopole to black hole. The critical coupling for this transition is v cr = π / ( 4 G ) , and it is larger than that of a single 't Hooft–Polyakov monopole. We investigate the black hole limit in detail.
119126143
Magnetic catalysis in AdS4
We study the formation of fermion condensates in anti-de Sitter space. In particular, we describe a novel version of magnetic catalysis that arises for fermions in asymptotically AdS4 geometries which cap off in the infrared with a hard wall. We show that in the presence of a magnetic field, a condensate develops in the bulk, spontaneously breaking CP symmetry. From the perspective of the dual boundary theory, this corresponds to a strongly coupled version of d = 2 + 1 magnetic catalysis.