Searching For Double Charm Baryon Suprascript Subscript Cc In The Babar Experiment

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Searching For Double Charm Baryon Suprascript Subscript Cc In The Babar Experiment

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Author : Jian Liu
language : en
Publisher:
Release Date : 2007

Searching For Double Charm Baryon Suprascript Subscript Cc In The Babar Experiment written by Jian Liu and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Baryons categories.

First Observation Of An Exited Charm Baryon Omega Suprascript Subscript C Decaying To Omega Suprascript 0 Subscript C Y At The Babar Experiment

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Author : Rahmi Bula
language : en
Publisher:
Release Date : 2006

First Observation Of An Exited Charm Baryon Omega Suprascript Subscript C Decaying To Omega Suprascript 0 Subscript C Y At The Babar Experiment written by Rahmi Bula and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Baryons categories.

A Study Of Double Charm And Charm Strange Baryons Inelectron Positron Annihilations

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Author :
language : en
Publisher:
Release Date : 2007

A Study Of Double Charm And Charm Strange Baryons Inelectron Positron Annihilations written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.

In this dissertation I describe a study of double-charm and charm-strange baryons based on data collected with the BABAR Detector at the Stanford Linear Accelerator Center. In this study I search for new baryons and make precise measurements of their properties and decay modes. I seek to verify and expand upon double-charm and charm-strange baryon observations made by other experiments. The BABAR Detector is used to measure subatomic particles that are produced at the PEP-II storage rings. I analyze approximately 300 million e+e- → c{bar c} events in a search for the production of double-charm baryons. I search for the double-charm baryons?{sub cc} (containing the quarks ccd) and?{sup ++}{sub cc} (ccu) in decays to?+{sub c}K−?+ and?+{sub c}K−?+?+, respectively. No statistically significant signals for their production are found, and upper limits on their production are determined. Statistically significant signals for excited charm-strange baryons are observed with my analysis of approximately 500 million e+e- → c{bar c} events. The charged charm-strange baryons?{sub c}(2970)+,?{sub c}(3055)+,?{sub c}(3123)+ are found in decays to?+{sub c}K−?+, the same decay mode used in the?+{sub cc} search. The neutral charm-strange baryon?{sub c}(3077)° is observed in decays to?+{sub c}K?−. I also search for excited charm-strange baryon decays to?+{sub c}K8,?+{sub c}K−,?+{sub c}K8?−?+, and?+{sub c}K−?−?+. No significant charm-strange baryon signals a f h these decay modes. For each excited charm-strange baryon state that I observe, I measure its mass, natural width (lifetime), and production rate. The properties of these excited charm-strange baryons and their decay modes provide constraints for phenomenological models of quark interactions through quantum chromodynamics. My discovery of the two new charm-strange baryons?{sub c}(3055)+ and?{sub c}(3123)+ influences our theoretical understanding of charm-strange baryon states.

A Study Of Double Charm And Charm Strange Baryons In Electron Positron Annihilations

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Author : Adam Jacob Edwards
language : en
Publisher:
Release Date : 2007

A Study Of Double Charm And Charm Strange Baryons In Electron Positron Annihilations written by Adam Jacob Edwards and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.

Study Of Charmed Baryon Baryon Sigma Subscript C 2800 Production At The Babar Experiment

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Author : Shamona Ahmed
language : en
Publisher:
Release Date : 2006

Study Of Charmed Baryon Baryon Sigma Subscript C 2800 Production At The Babar Experiment written by Shamona Ahmed and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Baryons categories.

Study Of Charm Baryons With The Babar Experiment

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Author : Brian Aa Petersen
language : en
Publisher:
Release Date : 2006

Study Of Charm Baryons With The Babar Experiment written by Brian Aa Petersen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.

The authors report on several studies of charm baryon production and decays by the BABAR collaboration. They confirm previous observations of the {Xi}'{sub c}{sup 0/+}, {Xi}{sub c}(2980){sup +} and {Xi}{sub c}(3077){sup +} baryons, measure branching ratios for Cabibbo-suppressed {Lambda}{sub c}{sup +} decays and use baryon decays to study the properties of the light-quark baryons, {Omega}{sup -} and {Xi}(1690){sup 0}.

First Observation Of A Family Of Double Charm Baryons

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Author :
language : en
Publisher:
Release Date : 2002

First Observation Of A Family Of Double Charm Baryons written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with categories.

The SELEX experiment (E781) at Fermilab has candidates for high mass states decaying to[Lambda][sub c][sup+]K[sup -][pi][sup+] and[Lambda][sub c][sup+]K[sup -] pi[sup+][pi][sup+], Cabibbo-allowed decay modes of doubly-charmed baryons[Xi][sub cc][sup+] and[Xi][sub cc][sup++]. The masses are consistent with theoretical considerations, but the spectroscopy is surprising. Limited lifetime information suggests that[tau][sub[Xi][sub cc][sup++]][approx][tau][sub Xi][sub cc][sup+].

Charm Baryon Studies At Babar

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Author : V. Ziegler
language : en
Publisher:
Release Date : 2006

Charm Baryon Studies At Babar written by V. Ziegler and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.

The authors present a precision measurement of the mass of the {Lambda}{sub c}{sup +} and studies of the production and decay of the {Omega}{sub c}{sup 0} and {Xi}{sub c}{sup 0} charm baryons using data collected by the BABAR experiment. To keep the systematic uncertainty as low as possible, the {Lambda}{sub c}{sup +} mass measurement is performed using the low Q-value decays, {Lambda}{sub c}{sup +} {yields} {Lambda}{sup 0} K{sub S}{sup 0}K{sup +} and {Lambda}{sub c}{sup +} {yields} {Sigma}{sup 0} K{sub S}{sup 0}K{sup +}. Several hadronic final states involving an {Omega}{sup -} and a {Xi}{sup -} hyperon are analyzed to reconstruct the {Xi}{sub c}{sup 0} and the {Omega}{sub c}{sup 0}.

Search For Double Charmed Baryon Omega Suprascript Subscript Ccs

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Author : Bin Pan
language : en
Publisher:
Release Date : 2007

Search For Double Charmed Baryon Omega Suprascript Subscript Ccs written by Bin Pan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Baryons categories.