• JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
 
  Bookmark and Share
 
 
Doctoral Thesis
DOI
10.11606/T.43.2000.tde-03122013-093148
Document
Author
Full name
Monique Kamla Moura Srivastava
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2000
Supervisor
Committee
Escobar, Carlos Ourivio (President)
Covolan, Roberto José Maria
Funchal, Renata Zukanovich
Gandelman, Miriam
Rosenfeld, Rogério
Title in Portuguese
Estudo dos estados excitados IND.C * IND.C produzidos hadronicamente.
Keywords in Portuguese
Estudos excitados
Hadrons
Partículas elementares
Abstract in Portuguese
A experiência E781/SELEX acumulou um total de 1 bilhão de eventos de trígger charmoso em fita utilizando um feixe secundário de POT.-/ POT.- de 600 GeV/c e um de próton de 500 GeV/c, ambos a partir do feixe de prótons de 800 GeV/c gerado pelo Tevatron no Fermilab. Aqueles incidiram em alvos de cobre e carbono com o objetivo de estudar a produção e o decaimento de estados charmosos. Neste trabalho estudamos os estados POT. ++0 IND.C(2455) c++/- e POT. ++0* IND.C (2520) POT.+ IND. C POT. +/- a partir dos dados da E781 tomados durante o período de Dezembro de 1996 até Setembro de 1997. Obtivemos as medidas de massa e largura para dos báríons IND.C e * IND.C com valores: M IND. c++ M IND. c+ = 167.5 ± 0.5 ± 0.2MeV/c2, M IND. c POT.0 -- M IND. c+ = 167.9 ± 0.7 ± 1.2 MeV/c2, M IND. c++* M IND. c+ = 237.4 ± 4.9 ± 3.1MeV/c2, M IND. c POT.0* -- M IND. c+ = 232.6 ± 1.7 ± 1.3 MeV/c2, M IND. c++- = 16.2 ± 7.8 ± 5.5MeV e M IND. c POT.0* = 9.1 ± 6.0 ± 6.2MeV. Fizemos também o estudo de hadroprodução destes estados medindo o parâmetro que caracteriza a distribuição em x IND.f. OS valores obtidos são: n IND. c++ = 2.57 ± 0.57 ± 0,45, n IND. c POT.0 = 1.37 ± 0,27 ± 0.43, n IND. c++ = 2,13 ± 0,26 ± 0,61, n IND. c POT.0- =2.05 ± 0,35 ± 0,80.
Title in English
Study of excited states 'C' ' *C' by hadronic production.
Keywords in English
Elementary particles
Excited studies
Hadrons
Abstract in English
The experiment E781/SELEX collected a total of 1 billion charm trígger events ou tape using a 600 GeV/c -/ and a 500 GeV/c proton secondary beams, both from the 800 GeV/c proton beam delivered by the Fermilab Tevatron, Those beams reached the copper and carbon targets. The main goal was to study charm hadron production and decays. This work is dedicated to study the c++/0(2455) c++/- e c (++/0)*(2520) c++/- states from the E781 data obtained from December 1996 to September 1997. We obtained the mass and width values for the c and c* bárions as: M c++ M c+ = 167.5 ± 0.5 ± 0.2MeV/c2, M c0 -- M c+ = 167.9 ± 0.7 ± 1.2 MeV/c2, M c++* M c+ = 237.4 ± 4.9 ± 3.1MeV/c2, M c0* -- M c+ = 232.6 ± 1.7 ± 1.3 MeV/c2, M c++- = 16.2 ± 7.8 ± 5.5MeV e M c0* = 9.1 ± 6.0 ± 6.2MeV. We also studied the hadroproduction for those states measuring the paramenter that characterizes the xf distribution. The values obtained are: n c++ = 2.57 ± 0.57 ± 0,45, n c0 = 1.37 ± 0,27 ± 0.43, n c++- = 2,13 ± 0,26 ± 0,61, n c0- =2.05 ± 0,35 ± 0,80.
 
WARNING - Viewing this document is conditioned on your acceptance of the following terms of use:
This document is only for private use for research and teaching activities. Reproduction for commercial use is forbidden. This rights cover the whole data about this document as well as its contents. Any uses or copies of this document in whole or in part must include the author's name.
Publishing Date
2014-02-21
 
WARNING: Learn what derived works are clicking here.
All rights of the thesis/dissertation are from the authors
Centro de Informática de São Carlos
Digital Library of Theses and Dissertations of USP. Copyright © 2001-2021. All rights reserved.