A diquark interpretation of the structure and energies of hadrons

Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Physics, 2005.

Bibliographic Details
Main Author: Selem, Alexander
Other Authors: Frank Wilczek.
Format: Thesis
Language:eng
Published: Massachusetts Institute of Technology 2006
Subjects:
Online Access:http://hdl.handle.net/1721.1/32910
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author Selem, Alexander
author2 Frank Wilczek.
author_facet Frank Wilczek.
Selem, Alexander
author_sort Selem, Alexander
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description Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Physics, 2005.
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spelling mit-1721.1/329102019-04-11T07:14:13Z A diquark interpretation of the structure and energies of hadrons Selem, Alexander Frank Wilczek. Massachusetts Institute of Technology. Dept. of Physics. Massachusetts Institute of Technology. Dept. of Physics. Physics. Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Physics, 2005. Includes bibliographical references (leaves 67-70). I present a simple phenomenological model which successfully organizes and classifies essentially all hadrons. The model is originally inspired from three simple theoretical indications including: treating baryons as a two body system with a diquark and quark connected by a flux tube, thereby indicating that they lie on Regge trajectories; allowing for independent combinations of diquark and quark to enumerate the observed trajectories; and that spin-flavor symmetric diquarks are more massive than their stisymmetric counterparts. With this framework essentially all hadrons can be consistently organized confirming the first three hypotheses and elucidating new ones, including: a universal slope or flux tube tension for both baryons and mesons implying the same color-charge at the flux tube ends, small spin forces external to diquarks, and the existence of tunneling effects. This framework and classification can then be used to estimate diquarks masses, and can be applied to exotic and cryptoexotic states. The model also make predictions for the existence of several particles and their energies; among them, tetraquark states. Finally, the arguments presented here naturally lead to many future projects in both experiment and theory. by Alexander Selem. S.B. 2006-05-15T20:38:39Z 2006-05-15T20:38:39Z 2005 2005 Thesis http://hdl.handle.net/1721.1/32910 62628078 eng M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 70 leaves 3311471 bytes 3313953 bytes application/pdf application/pdf application/pdf Massachusetts Institute of Technology
spellingShingle Physics.
Selem, Alexander
A diquark interpretation of the structure and energies of hadrons
title A diquark interpretation of the structure and energies of hadrons
title_full A diquark interpretation of the structure and energies of hadrons
title_fullStr A diquark interpretation of the structure and energies of hadrons
title_full_unstemmed A diquark interpretation of the structure and energies of hadrons
title_short A diquark interpretation of the structure and energies of hadrons
title_sort diquark interpretation of the structure and energies of hadrons
topic Physics.
url http://hdl.handle.net/1721.1/32910
work_keys_str_mv AT selemalexander adiquarkinterpretationofthestructureandenergiesofhadrons
AT selemalexander diquarkinterpretationofthestructureandenergiesofhadrons