Search For Top Decays Through Flavor Changing Neutral Current Process T Z Q In Pp Collisions At Square Root S

DOWNLOAD

Download Search For Top Decays Through Flavor Changing Neutral Current Process T Z Q In Pp Collisions At Square Root S PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Search For Top Decays Through Flavor Changing Neutral Current Process T Z Q In Pp Collisions At Square Root S book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page

Search For Top Decays Through Flavor Changing Neutral Current Process T Z Q In Pp Collisions At Square Root S

DOWNLOAD
Author : 李昀翰
language : en
Publisher:
Release Date : 2013

Search For Top Decays Through Flavor Changing Neutral Current Process T Z Q In Pp Collisions At Square Root S written by 李昀翰 and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with categories.

Search For The Flavor Changing Neutral Current Decay T Rightarrow Qz In P Overline P Collisions At Sqrt S

DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2007

Search For The Flavor Changing Neutral Current Decay T Rightarrow Qz In P Overline P Collisions At Sqrt S 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.

This dissertation presents a blind search for the flavor changing neutral current decay of the top quark t → qZ in pp collisions at [special characters omitted] = 1.96TeV using a data sample corresponding to an integrated luminosity of 1.12 fb-1 collected by the Collider Detector at Fermilab (CDF), This decay is extremely rare in the standard model, and a signal at the Tevatron would be an indication of new physics. Dividing candidate events with a Z boson and four or more jets into a sample of those which have a heavy flavor jet identified by a secondary vertex algorithm and those which do not, we observe data yields consistent with background expectations. We set a 95% C.L. upper limit on the branching fraction B (t → qZ) of 11.3%, consistent with an expected upper limit of 7.8% ± 3.3%.

Search For The Flavor Changing Neutral Current Decay T To Zq In P Bar P Collisions At Sqrt S

DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2008

Search For The Flavor Changing Neutral Current Decay T To Zq In P Bar P Collisions At Sqrt S written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.

We report a search for the flavor changing neutral current (FCNC) decay of the top quark t → Zq (q = u, c) in p{bar p} collisions at √s = 1.96 TeV using a data sample corresponding to an integrated luminosity of 1.9 fb−1 collected by the CDF II detector. This decay is strongly suppressed in the standard model (SM) and a signal at the Tevatron would be an indication of physics beyond the SM. Using Z+ ≥ 4 jet final state candidate events, both with and without an identified bottom quark jet, we discriminate signal from background by exploring kinematic constraints present in FCNC events and obtain an upper limit of [Beta](t → Zq)

Search For The Flavor Changing Neutral Current Decay T Qz In Pp Collisions At S

DOWNLOAD
Author : Ingyin Zaw
language : en
Publisher:
Release Date : 2007

Search For The Flavor Changing Neutral Current Decay T Qz In Pp Collisions At S written by Ingyin Zaw and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Particles (Nuclear physics) categories.

Search For The Flavor Changing Neutral Current Decay T Zq At The Square Root Of S

DOWNLOAD
Author : Jennifer Lindsay Gimmell
language : en
Publisher:
Release Date : 2009

Search For The Flavor Changing Neutral Current Decay T Zq At The Square Root Of S written by Jennifer Lindsay Gimmell and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with categories.

Heavy Flavor Decays Of The Z0 And A Search For Flavor Changing Neutral Currents

DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2004

Heavy Flavor Decays Of The Z0 And A Search For Flavor Changing Neutral Currents written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.

Presented here are the results of a direct search for flavor changing neutral currents via the rare process Z[sup 0] [yields] bs and a measurement of R[sub bs] = [Lambda](Z[sup 0] [yields] bs)/[Lambda](Z[sup 0] [yields] hadrons). Because the decays Z[sup 0] [yields] b[bar b] and Z[sup 0] [yields] c[bar c] contribute significant backgrounds to Z[sup 0] [yields] bs, simultaneous measurements of R[sub b] = [Lambda](Z[sup 0] [yields] b[bar b])/[Lambda](Z[sup 0] [yields] hadrons) and R[sub c] = [Lambda](Z[sup 0] [yields] c[bar c])/[Lambda](Z[sup 0] [yields] hadrons) were also made. The standard double tag technique was extended and self calibrating tags were used for s, c, and b quarks. These measurements were made possible by the unique capabilities of the SLAC Large Detector (SLD) at the Stanford Linear Accelerator Center (SLAC): The b and c tags relied upon the SLD's VXD3 307 megapixel CCD vertex detector for topological and kinematic reconstruction of the B and D decay vertices; the s tag identified K[sup [+-]] mesons using the particle identification capabilities of SLD's Cherenkov Ring Imaging Detector (CRID), and K[sub S][sup 0] mesons and [Lambda] hadrons by kinematic reconstruction of their decay vertices in SLD's 5120 channel central drift chamber (CDC) particle tracking system.

Search For Top Decays Charm And Higgs Through Flavor Changing Neutral Current Process In Cms

DOWNLOAD
Author : 邱奕寰
language : en
Publisher:
Release Date : 2014

Search For Top Decays Charm And Higgs Through Flavor Changing Neutral Current Process In Cms written by 邱奕寰 and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.

Updated Search For The Flavor Changing Neutral Current Decay D0 To Mu Mu

DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2010

Updated Search For The Flavor Changing Neutral Current Decay D0 To Mu Mu written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.

We report on a search for the flavor-changing neutral-current decay D° →??− in p{bar p} collisions at √s = 1.96TeV using 360 pb−1 of integrated luminosity collected by the CDF II detector at the Fermilab Tevatron collider. A displaced vertex trigger selects long-lived D° candidates in the?+?−,?+?−, and K−?+ decay modes. We use the Cabibbo-favored D° → K−?+ channel to optimize the selection criteria in an unbiased manner, and the kinematically similar D° →?+?− channel for normalization. We set an upper limit on the branching fraction?(D° →?+?−)

A Search For Flavour Changing Neutral Current Processes In Decays Of Charmed Mesons

DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1987

A Search For Flavour Changing Neutral Current Processes In Decays Of Charmed Mesons written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with categories.

Neutral current interactions are known from studies of K meson decays to conserve flavor to a high precision. Although flavor changing neutral currents (FCNC) are forbidden in the Weinberg-Salam model, many extensions of the Standard Model allow such processes. We present preliminary upper limits on FCNC-mediated decays of charmed particles, namely D° .-->. ee−, D° .-->. .mu.mu.−, D° .-->. .mu.e and D+ .-->. .pi.+.mu.e.

Search For Flavor Changing Neutral Current And Lepton Flavor Violating Decays Of D Sup 0 Ell Sup Ell Sup

DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2004

Search For Flavor Changing Neutral Current And Lepton Flavor Violating Decays Of D Sup 0 Ell Sup Ell Sup written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.

The authors report on a search for the flavor-changing neutral current decays D[sup 0] --> e[sup +]e[sup -] and D[sup 0] --> [mu][sup +][mu][sup -], and the lepton-flavor violating decay D[sup 0] --> e[sup [+-]][mu][sup [-+]]. The measurement is based on 122 fb[sup -1] of data collected by the BABAR detector at the PEP-II asymmetric e[sup +]e[sup -] collider. No evidence is found for any of the decays. The upper limits on the branching fractions, at the 90% confidence level, are 1.2 x 10[sup -6] for D[sup 0] --> e[sup +]e[sup -], 1.3 x 10[sup -6] for D[sup 0] --> [mu][sup +][mu][sup -], and 8.1 x 10[sup -7] for D[sup 0] --> e[sup [+-]][mu][sup [-+]].