Results
author = "Acharya, BS"
Branes at angles and calibrated geometry
Description :
In a recent paper, Ohta and Townsend studied the conditions which must be
satisfied for a configuration of two intersecting M5-branes at angles to be
supersymmetric. In this paper we extend this result to any number of M5-branes
or any number of M2-branes. This is accomplished by interpreting thei...
Repository :
arXiv
Language(s) :
Undetermined
Planes, branes and automorphisms: I. Static branes
Description :
This is the first of a series of papers devoted to the group-theoretical
analysis of the conditions which must be satisfied for a configuration of
intersecting M5-branes to be supersymmetric. In this paper we treat the case of
static branes. We start by associating (a maximal torus of) a different...
Repository :
arXiv
Language(s) :
Undetermined
Planes, branes and automorphisms: II. Branes in motion
Description :
We complete the classification of supersymmetric configurations of two
M5-branes, started by Ohta and Townsend. The novel configurations not
considered before are those in which the two branes are moving relative to one
another. These configurations are obtained by starting with two coincident
bra...
Repository :
arXiv
Language(s) :
Undetermined
Branes at conical singularities and holography
Description :
For supergavrity solutions which are the product of an anti-de Sitter space
with an Einstein space X, we study the relation between the amount of
supersymmetry preserved and the geometry of X. Depending on the dimension and
the amount of supersymmetry, the following geometries for X are possible, ...
Repository :
arXiv
Language(s) :
Undetermined
Euclidean D-branes and higher-dimensional gauge theory
Description :
We consider euclidean D-branes wrapping around manifolds of exceptional
holonomy in dimensions seven and eight. The resulting theory on the
D-brane---that is, the dimensional reduction of 10-dimensional supersymmetric
Yang-Mills theory---is a cohomological field theory which describes the
topology...
Repository :
arXiv
Language(s) :
Undetermined
Helicity of the W boson in lepton plus jets t(t)over-bar events
Author(s) :
Abazov, V
,
Abbott, B
,
Abdesselam, A
,
Abolins, M
,
Abramov, V
,
Acharya, BS
,
Adams, DL
,
Adams, M
,
Ahmed, SN
,
Alexeev, GD
,
Alton, A
Description :
We examine properties of t (t) over bar candidate events in lepton +jets final states to establish the helicities of W bosons in t -> W + b decays. Our analysis is based on a direct calculation of a probability density for each event to correspond to a t (t) over bar final state, as a function of th...
Repository :
UCL Eprints
Language(s) :
Undetermined
A precision measurement of the mass of the top quark
Author(s) :
Abazov, VM
,
Abbott, B
,
Abdesselam, A
,
Abolins, M
,
Abramov, V
,
Acharya, BS
,
Adams, DL
,
Adams, M
,
Ahmed, SN
,
Alexeev, GD
Description :
The standard model of particle physics contains parameters such as particle masses - whose origins are still unknown and which cannot be predicted, but whose values are constrained through their interactions. In particular, the masses of the top quark (M-t) and W boson (M-W)(1) constrain the mass of...
Repository :
UCL Eprints
Language(s) :
Undetermined
Search for pair production of light scalar top quarks in p(p)over-bar collisions at root s=1.8 TeV
Author(s) :
Abazov, VM
,
Abbott, B
,
Abdesselam, A
,
Abolins, M
,
Abramov, V
,
Acharya, BS
,
Adams, DL
,
Adams, M
,
Ahmed, SN
,
Alexeev, GD
Description :
Using 85.2+/-3.6 pb(-1) of p (p) over bar collisions collected at roots=1.8 TeV with the D0 detector at Fermilab's Tevatron Collider, we present the results of a search for direct pair production of scalar top quarks ((t) over bar), the supersymmetric partners of the top quark. We examined events co...
Repository :
UCL Eprints
Language(s) :
Undetermined
Measurement of the top quark mass in all-jet events
Author(s) :
Abazov, VM
,
Abbott, B
,
Abdesselam, A
,
Abolins, M
,
Abramov, V
,
Acharya, BS
,
Adams, DL
,
Adams, M
,
Alexeev, GD
,
Alton, A
,
Alves, GA
Description :
We describe a measurement of the mass of the top quark from the purely hadronic decay modes of t (t) over bar pairs using all-jet data produced in p (p) over bar collisions at roots = 1.8 TeV at the Fermilab Tevatron Collider. The data, which correspond to an integrated luminosity of 110.2 +/- 5.8 p...
Repository :
UCL Eprints
Language(s) :
Undetermined
Measurement of the top quark mass in all-jet events
Description :
Repository :
Oxford University Research Archive (ORA)
Language(s) :
Undetermined