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Showing 1 to 20 of 351 for “"hadron"”.
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Hadron -hadron scattering in lattice quantum chromodynamics
<p>Hadron-hadron and multi-hadron scattering calculations in fully dynamical, mixed-action Lattice Quantum Chromodynamics using the MILC gauge ensembles in a non-perturbative simulation are discussed. In particular, calculations of the pi+sum+, pi+xi 0, K+p, K+n, and K¯ 0xi0 scattering lengths …
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Signals of supersymmetry in top quark decays at positron-electron and hadron-hadron colliders
… in existing and future $e\sp+ e\sp-$ and hadron-hadron colliders. We have focussed on the influence of supersymmetry on the search for the top quark (as yet, undiscovered) by studying the two specific processes: $e\sp+ e\sp-$ $\to$ $\Theta$ $\to$ $g\tilde{g}\tilde{k}$, where $\tilde{k}$ is …
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Jet production at hadron colliders
Hadronic jets feature in many final states of interest in modern collider experiments. They form a significant Standard Model background for many proposed new physics processes and also probe QCD interactions at several different scales. At high energies incoming protons produce beam jets. …
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Light Hadron Properties From Lattice QCD
… What is the quark mass dependence of low lying hadrons ? In particular, this work will focus on the quark mass dependence of mesons and baryons with the tools of lattice calculations and effective field theories.</p><p>The two and three flavor effective field theories are applied to pions and …
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Hadron Production in High-Energy Muon Scattering
Made available in DSpace on 2015-05-13T15:22:14Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7913484.PDF: 4373659 bytes, checksum: 668f9e1aa0303132948cefcde811f8d9 (MD5) Previous issue date: 1978
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Hadron production in high energy muon scattering
… measurements. We determine the distribution of hadrons produced in muon scattering, measuring momentum components parallel and transverse to the virtual photon direction, and these distributions are compared to other high energy experiments involving the scattering of pions, protons, and …
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Jet substructure at the Large Hadron Collider
In this thesis, we use the CMS Open Data to study the 2-prong substructure of jets. We use CMS's particle flow reconstruction algorithm to obtain jet constituents, which we then use to perform various jet substructure studies. After validating our basic kinematics and substructure results through a …
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Searches for New Physics at the Large Hadron Collider
… of particle physics analyses at the Large Hadron Collider, including both tried-and-true supervised machine learning methods and also cutting edge novel unsupervised machine learning methods that are in development. It also contains three published studies, and another study that is in …
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A variational approach to hadron structure in lattice QCD
In order to understand how hadrons acquire their physical properties from their constituents, we must resort to the underlying theory of the strong interaction, Quantum Chromodynamics (QCD). However, the non-perturbative nature of this theory in the relevant energy scales renders the standard …
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Measurement of B-hadron masses at CDF run II
We measure the mass of b-hadrons in exclusive J/[psi]-decay modes. The correct momentum scale is established by the following steps: validate and quantify distortions or systematic effects in the Central Outer Tracker and Silicon Vertex Detector, apply and fine tune the energy loss corrections per …
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Exploring Hadron Structure Through Monte-Carlo Fits and Model Calculations
Since the discovery in the 1960's that the proton is not a fundamental particle but instead composed of even smaller particles known as quarks and gluons, there has been a concerted effort to understand the proton's internal structure. There still remain many mysteries about the proton and the …
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Hadron production in electron-positron annihilation below the bottom-threshold
Contains fulltext : mmubn000001_028489322.pdf (Publisher’s version ) (Open Access)
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Angular distributions of high-mass dilepton production in hadron collisions
… where the quarks remain co-planar with the hadrons in the photon rest frame, this kinematic method reproduces the Lam-Tung relation and derives an additional equality for μ^2, which is only interpretable for single-event parameters. This method has been extended to the case of quark …
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Phenomenological aspects of new physics at high energy hadron colliders
… of phenomenological aspects of new physics at hadron colliders, such as the Large Hadron Collider (LHC). After a general introduction in chap- ter 1, in chapter 2 we outline the main features of the Standard Model (SM) of particle physics and the theoretical motivations for going beyond it. We …
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Precision Physics with W-bosons at the Large Hadron Collider
Weak bosons are by now a well-established and observed block of the elementary particles table, but the era of Precision Physics opens up new ways of utilising them in an attempt to uncover the mystery of physics beyond the Standard Model. Being central to what is called Electroweak Symmetry …
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Hadron production from e⁺e⁻ collisions around the Z⁰ mass
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1990.
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Light (anti)nuclei production with ALICE at the Large Hadron Collider
… objects. Heavy ion collisions produce not only hadrons (among which pions, kaons and protons are the most abundantly produced) but also composite and even fragile objects such as light nuclei (d, t, 3He, 4He) and light Λ-hypernuclei, along with their antiparticles. Their measured yields decrease …
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Aspects of hadron and instatnton physics in lattice quantum field theories
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1997.
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