Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 7
Book Description
Recent Results on Charm from Fermilab Experiment E-687
Fermilab Experiment E-687
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 8
Book Description
About 104 charm decays have been reconstructed from first-run data of Fermilab experiment E687 using the Fermilab Wide-Band Photon Spectrometer with the world's highest energy photon beam. Charm selection strategies and preliminary results are discussed. Lifetime values are (.50 {plus minus} .06 {plus minus} .03)ps for the D{sub s} and (.20 {plus minus} .03 {plus minus} .03)ps for the?{sub c}+. Preliminary D+ and D° lifetimes are consistent with current world averages. Signals for charm baryon and Cabibbo-suppressed charm meson decays are shown. Preliminary branching ratios are: B(D° →?+?−?+?−)/B(D° → K−?+?+?−) = .10 {plus minus} .02 {plus minus} .02; B(D° → {bar K}°K+K−)/B(D° → {bar K}°?+?−) = .20 {plus minus} .06(stat); B(D° → {bar K}°?)/B(D° → {bar K}°?+?−) = .16 {plus minus} .06(stat). Preliminary results are given on D*{sup {plus minus}} and D{sup {plus minus},0} photoproduction for photon energies from 100 to 350 GeV. 13 refs., 3 figs.
Recent Results from Fermilab E-687, Charm Particle Decays, Lifetimes and Photoproduction Dynamics: A Compilation Results Presented at DPF 1994
Author: Energy Research Abstracts
Author: Recent Results from Fermilab E687 on Charm Spectroscopy
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 8
Book Description
Recent analyses of charm spectroscopy from Fermilab fixed target experiment 687 are summarized. Emphasis is placed on the phenomenology of Cabibbo suppression in the meson sector. Such transitions have been observed in the semileptonic modes and hadronic modes. While the former transitions give us an opportunity to observe the weak current and the CKM matrix, a systematic comparison of the latter transitions allow us to study strong interaction effects, and possibly, light quark spectroscopy.
Fermilab E687 Results and Future High Statistics Charm Experiment FOCUS
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 8
Book Description
Results from the Fermilab charm photoproduction experiment E687 are reviewed. The physics goals and the improvements being made for the next experiment (FOCUS/E831) are described. We expect to accumulate a million fully reconstructed charm decays which represent an order of magnitude improvement over E687.
Recent Results from Fermilab Charm Experiment E791
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
We report the results of some recent E791 charm analyses. They include 1) a search for rare and forbidden decays, 2) measurements of form factors for D → K{sup *0}l+?{sub l} and D+{sub s} →?l+?{sub l}, and 3) D+{sub s} and D° lifetime measurements including the lifetime difference between D° → K−?+ and D° → K−K+. The latter is the first direct search for a possible lifetime difference that could contribute to D° - {anti D}° mixing.
Scientific and Technical Aerospace Reports
Author: Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 488
Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Government reports annual index
Author: High Energy Hadronic Interactions
Author: J. Thanh Van TranPublisher: Atlantica Séguier Frontières
ISBN: 9782863320822
Category : Technology & Engineering
Languages : en
Pages : 620
Book Description