Author: Roel AaijPublisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Searches for 25 Rare and Forbidden Decays of $D^+}$ and $ D}_s^{+} $ Mesons
Author: Roel AaijRare and Forbidden Decays of D Mesons
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The authors summarize the results of two recent searches for flavor-changing neutral current, lepton-flavor violating, and lepton-number violating decays of D[sup+], D[sub s][sup+], and D[sup 0] mesons (and their antiparticles) into modes containing muons and electrons. using data from Fermilab charm hadroproduction experiment E791, they examined D[sup+] and D[sub s][sup+][pi][ell][ell] and[Kappa][ell][ell] decay modes and the D[sup 0] dilepton decay modes containing either[ell][sup+][ell][sup[minus]], a[rho][sup 0], [bar[Kappa]]*[sup 0], or[phi] vector meson, or a non-resonant[pi][pi], [Kappa][pi], or[Kappa][Kappa] pair of pseudoscalar mesons. No evidence for any of these decays was found. Therefore, the authors presented branching-fraction upper limits at 90% confidence level for the 51 decay modes examined. Twenty-six of these modes had no previously reported limits, and eighteen of the remainder were reported with significant improvements over previously published results.
A Search for the Rare and Forbidden Decays D0 2!V L+ L-
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 105
Book Description
I report the results of a search for flavor-changing neutral current, leptonflavor, and lepton-number violating decays of the 3 and 4-body decay modes of the D0 (and its antiparticle) containing muons and electrons. Using data from Fermilab charm hadroproduction experiment E791, I examine modes with two leptons and either a [rho]0, $\bar{K}$0, or [Phi] vector meson or a non-resonant [pi][pi], K[pi], or KK pair of pseudoscalar mesons. No evidence for any of these decays is found. Therefore, branching-fraction upper limits, typically at the 10-4 level, are presented at the 90% confidence level for the 27 decay modes examined. Of these searches, 18 are investigations of decays without previous published results; several others have significantly improved sensitivity over previous results.
Limits on Rare D-meson Decays
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The latest results from a number of experiments on searches for rare decays of the charmed D-mesons are summarized. This talk reports on upper limits on flavor changing weak neutral current reactions and on processes that do not conserve the lepton family number.
Search for Rare B-meson Decays Into D + S Mesons
Author: ARGUS CollaborationSearch for rare B-meson decays into D+s [D s] mesons
![Search for rare B-meson decays into D+s [D s] mesons PDF](https://books.google.com/books/content/images/frontcover/35tUGwAACAAJ?fife=w80-h100)
Author: Deutsches Elektronen-Synchrotron (Hamburg).Publisher:
ISBN:
Category :
Languages : de
Pages :
Book Description
Search for Rare and Forbidden Charm Meson Decays at Fermilab E791
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The authors report the results of a blind search for flavor-changing neutral current, lepton-flavor violating, and lepton-number violating decays of D[sup+], D[sub s][sup+], and D[sup 0] mesons (and their antiparticles) into modes containing muons and electrons. Using data from Fermilab charm hadroproduction experiment E791, they examine the[pi][ell][ell] and K[ell][ell] decay modes of D[sup+] and D[sub s][sup+] and the[ell][sup+][ell][sup[minus]] decay modes of D[sup 0]. No evidence for any of these decays is found. Therefore, they present branching-fraction upper limits at 90% confidence level for the 24 decay modes examined. Eight of these modes have no previously reported limits, and fourteen are reported with significant improvements over previously published results.
Search for Rare 3 and 4-body D0 Decays at FNAL E791
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Limits at the 10−4 level are reported for rare and forbidden decays of the D° charm meson to a pair of leptons and either a vector meson or two pseudoscalar mesons. Of these searches, 18 are investigations of decays without previous published results; several others have significantly improved sensitivity over previous results.
A Search for the Rare and Forbidden Decays D0 {u2192} V L+ L-.
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 105
Book Description
I report the results of a search for flavor-changing neutral current, leptonflavor, and lepton-number violating decays of the 3 and 4-body decay modes of the D0 (and its antiparticle) containing muons and electrons. Using data from Fermilab charm hadroproduction experiment E791, I examine modes with two leptons and either a ?0, $\bar{K}$0, or ? vector meson or a non-resonant ?? , K? , or KK pair of pseudoscalar mesons. No evidence for any of these decays is found. Therefore, branching-fraction upper limits, typically at the 10-4 level, are presented at the 90% confidence level for the 27 decay modes examined. Of these searches, 18 are investigations of decays without previous published results; several others have significantly improved sensitivity over previous results.
Author: Ng, John N