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The top quark is the heaviest elementary particle known and its mass ($m_{\rm top}$) is a fundamental parameter of the Standard Model (SM). The $m_{\rm top}$ value affects theory predictions of particle production cross-sections required…

High Energy Physics - Experiment · Physics 2015-10-16 Giorgio Cortiana

A $\sqrt{n}$ estimate in the hyperplane problem with arbitrary measures has recently been proved in \cite{K3}. In this note we present analogs of this result for sections of lower dimensions and in the complex case. We deduce these…

Metric Geometry · Mathematics 2013-09-26 Alexander Koldobsky

During the first years of the LHC operation a large amount of jet data was recorded by the ATLAS and CMS experiments. In this review several measurements of jet-related observables are presented, such as multi-jet rates and cross sections,…

High Energy Physics - Experiment · Physics 2015-09-08 Panagiotis Kokkas

Semi-visible jets arise from a hypothetical, strongly interacting ``dark sector'' -- a dark counterpart of quantum chromodynamics whose partial decays back to Standard Model particles introduce new types of collider BSM signature. CMS and…

High Energy Physics - Phenomenology · Physics 2025-02-18 Andy Buckley , Jon Butterworth , Louie Corpe , Caterina Doglioni , Deepak Kar , Clarisse Prat , Sukanya Sinha , Danielle Wilson-Edwards

The mass of the top quark is measured using a sample of t t-bar candidate events with at least six jets in the final state. The sample is selected from data collected with the CMS detector in pp collisions at sqrt(s) = 7 TeV in 2011 and…

High Energy Physics - Experiment · Physics 2014-04-07 CMS Collaboration

We discuss a mechanism which generates a mass term for a scalar field in an expanding universe. The mass of this field turns out to be generated by the cosmological constant and can be naturally small if protected by a conformal symmetry…

Astrophysics · Physics 2008-12-18 Xavier Calmet

The mass measurement of galaxy clusters is an important tool for the determination of cosmological parameters describing the matter and energy content of the Universe. However, the standard methods rely on various assumptions about the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 Martina Falco , Steen H. Hansen , Radoslaw Wojtak , Thejs Brinckmann , Mikkel Lindholmer , Stefania Pandolfi

The long-lived stau scenario is an interesting possibility at the LHC. We study squark mass measurements in this scenario; in particular, we show that left- and right-handed squark masses are both measurable. In SUSY events, multiple jets…

High Energy Physics - Phenomenology · Physics 2011-10-03 Takumi Ito

Measurements are presented of the properties of high transverse momentum jets, produced in proton-proton collisions at a center-of-mass energy of sqrt(s) = 7 TeV. The data correspond to an integrated luminosity of 35 pb^-1 and were…

High Energy Physics - Experiment · Physics 2013-06-25 ATLAS Collaboration

The projected properties of triaxial generalization of the modified Hubble mass models are studied. These models are constructed by adding the additional radial functions, each multiplied by a low-order spherical harmonic, to the models of…

Astrophysics · Physics 2009-11-10 Mousumi Das , Parijat Thakur , H. B. Ann

In the CDM paradigm, the halo mass function is a sensitive probe of the cosmic structure. In observations, halo mass is typically estimated from its relation with other observables. The resulting halo mass function is subject to systematic…

Cosmology and Nongalactic Astrophysics · Physics 2019-10-09 Fuyu Dong , Jun Zhang , Xiaohu Yang , Jiajun Zhang , Wentao Luo

We consider the spherically symmetric metric with a comoving perfect fluid and non-zero pressure -- the Lemaitre metric -- and present it in the form of a calculational algorithm. We use it to review the definition of mass, and to look at…

General Relativity and Quantum Cosmology · Physics 2014-11-20 Alnadhief A. H. Alfedeel , Charles Hellaby

The images of relativistic jets from extragalactic sources produced by gravitational lensing by galaxies with different mass surface density distributions are modeled. In particular, the following models of the gravitational lens mass…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 T. I. Larchenkova , A. A. Lutovinov , N. S. Lyskova

We apply the supersymmetry approach to one-dimensional quantum systems with spatially-dependent mass, by including their ordering ambiguities dependence. In this way we extend the results recently reported in the literature. Furthermore, we…

High Energy Physics - Theory · Physics 2009-11-10 A. de Souza Dutra , Marcelo Hott , C. A. S. Almeida

The physics potential of the Large Hadron Collider in combination with the planned International Linear Collider is discussed for a difficult region of supersymmetry that is characterized by scalar SUSY particles with masses around 2 TeV.…

High Energy Physics - Phenomenology · Physics 2007-10-26 K. Desch , J. Kalinowski , G. Moortgat-Pick , K. Rolbiecki , W. J. Stirling

Strongly coupled hidden sector theories predict collider production of invisible, composite dark matter candidates mixed with standard model hadrons in the form of semivisible jets. Classical mass reconstruction techniques may not be…

High Energy Physics - Phenomenology · Physics 2023-07-21 Kevin Pedro , Prasanth Shyamsundar

Cosmological accretion shocks created during the formation of galaxy clusters are a ubiquitous phenomenon all around the Universe. These shocks, and their features, are intimately related with the gravitational energy put into play during…

Cosmology and Nongalactic Astrophysics · Physics 2024-07-03 David Vallés-Pérez , Vicent Quilis , Susana Planelles

Precision measurement of the stop mass at the ILC is done in a method based on cross-sections measurements at two different center-of-mass energies. This allows to minimize both the statistical and systematic errors. In the framework of the…

High Energy Physics - Phenomenology · Physics 2011-03-18 C. Milstene , A. Freitas , M. Schmitt , A. Sopczak

Hard processes leading to high transverse momentum hadron production are calculable in perturbative Quantum Chromodynamics (pQCD) for proton-proton collisions. In heavy-ion collisions, such processes occur as well, and due to a separation…

High Energy Physics - Phenomenology · Physics 2007-05-23 Thorsten Renk

An algorithm to efficiently compute the moments of volumetric images is disclosed. The approach demonstrates a reduction in processing time by reducing the computational complexity significantly. Specifically, the algorithm reduces…

Computer Vision and Pattern Recognition · Computer Science 2020-12-16 William Diggin , Michael Diggin