Download or read book A Study of Double charm and Charm strange Baryons in Electron positron Annihilations written by Adam Jacob Edwards and published by . This book was released on 2007 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Study of Double Charm and Charm Strange Baryons InElectron Positron Annihilations written by and published by . This book was released on 2007 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Charmed and Strange Baryon Production in 29 GeV Electron Positron Annihilation written by Spencer Robert Klein and published by . This book was released on 1989 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Study of Excited Charm Strange Baryons WithEvidence for New Baryons Xi c 3055 and Xi c 3123 written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a study of excited charm-strange baryon states produced in ee− annihilations at or near a center-of-mass energy of 10.58 GeV, in a data sample with an integrated luminosity of 384 fb−1 recorded with the BABAR detector at the PEP-II e+e storage rings at the Stanford Linear Accelerator Center. We study strong decays of charm-strange baryons to?{sub c}+K{sub S}°,?{sub c}+K−,?{sub c}+K−?+,?{sub c}+K{sub S}°?−,?{sub c}+K{sub S}°?−?+,?{sub c}+K−?−?+. This study confirms the existence of the states?{sub c}(2980)+,?{sub c}(3077)+, and?{sub c}(3077)−, with a more accurate determination of the?{sub c}(2980)+ mass and width. We also present evidence for two new states,?{sub c}(3055)+ and?{sub c}(3123)+, decaying through the intermediate resonant modes?{sub c}(2455){sup ++}K− and?{sub c}(2520){sup ++}K−, respectively. For each of these baryons, we measure the yield in each final state, determine the statistical significance, and calculate the product of the production cross-section and branching fractions. We also measure the masses and widths of these excited charm-strange baryons.

Download or read book Study of Methods for Finding Double Charm Baryons written by Bimal Bhattarai and published by . This book was released on 2005 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book First Observation of a Family of Double Charm Baryons written by and published by . This book was released on 2002 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Energy Research Abstracts written by and published by . This book was released on 1984 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Masses of Charm and Strange Baryons written by and published by . This book was released on 1986 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our intent is to make simple-minded mass estimates of the baryons containing charm and strange quarks.

Download or read book Charmed Baryon Production from Electron Positron Annihilations in the Upsilon 4S Energy Region written by Thierry Bruno Copié and published by . This book was released on 1988 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book University Physics written by OpenStax and published by . This book was released on 2016-11-04 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt: University Physics is a three-volume collection that meets the scope and sequence requirements for two- and three-semester calculus-based physics courses. Volume 1 covers mechanics, sound, oscillations, and waves. Volume 2 covers thermodynamics, electricity and magnetism, and Volume 3 covers optics and modern physics. This textbook emphasizes connections between between theory and application, making physics concepts interesting and accessible to students while maintaining the mathematical rigor inherent in the subject. Frequent, strong examples focus on how to approach a problem, how to work with the equations, and how to check and generalize the result. The text and images in this textbook are grayscale.

Download or read book Physics Briefs written by and published by . This book was released on 1994 with total page 1256 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Searching for Double Charm Baryon suprascript subscript cc in the BABAR Experiment written by Jian Liu and published by . This book was released on 2007 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Study of Charm Baryons Containing a Lambda Baryon in the Final State written by Joseph Alexander Swiatek and published by . This book was released on 1995 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book High Energy Physics Index written by and published by . This book was released on 1990 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Guide to Experimental Elementary Particle Physics Literature 1988 1992 written by and published by . This book was released on 1993 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Guide to Experimental Elementary Particle Physics Literature 1985 1989 written by and published by . This book was released on 1990 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Constructing Quarks written by Andrew Pickering and published by University of Chicago Press. This book was released on 1999-12 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: Widely regarded as a classic in its field, Constructing Quarks recounts the history of the post-war conceptual development of elementary-particle physics. Inviting a reappraisal of the status of scientific knowledge, Andrew Pickering suggests that scientists are not mere passive observers and reporters of nature. Rather they are social beings as well as active constructors of natural phenomena who engage in both experimental and theoretical practice. "A prodigious piece of scholarship that I can heartily recommend."—Michael Riordan, New Scientist "An admirable history. . . . Detailed and so accurate."—Hugh N. Pendleton, Physics Today