Author: Samuel Thomas McOniePublisher:
ISBN:
Category : Particles (Nuclear physics)
Languages : en
Pages : 229
Book Description
An Investigation of E+e− to Pi Pi J/psi Final States Produced Via Initial State Radiation at Belle
Author: Samuel Thomas McOniePublisher:
ISBN:
Category : Particles (Nuclear physics)
Languages : en
Pages : 229
Book Description
Study of the Pi+pi-J//psi Mass Spectrum Via Initial State Radiation at BaBar
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 13
Book Description
We present an update of the study of the Y(4260) resonance, produced in the process ee− →?{sub ISR}?+?− J/? using initial-state radiation events at the PEP-II e+e− storage rings. This study is based on 454 fb−1 of data recorded with the BABAR detector at a center-of-mass energy in the?(4S) resonance region. From a fit with a single non-relativistic Breit-Wigner shape we obtain updated parameters for the Y(4260) resonance which are m{sub Y} = 4252 ± 6−3{sup +2} MeV/c2 and?{sub Y} = 105 ± 18−6{sup +4} MeV/c2; we also measure?(?+?− J/?)?{sub e{sup +}e−} = (7.5 ± 0.9 ± 0.8) eV. We cannot confirm the recent BELLE observation of a broad structure around 4.05GeV/c2 in this decay mode.
Study of the Reaction $e^{ }e^{-} \to J/\psi\pi^{ }\pi^{-}$ Via Initial-state Radiation at BaBar
Author: Study of the Reaction E{̂+}e{̂-}-]psi(2S)pi{̂-}pi{̂-} Via Initial State Radiation at BaBar
![Study of the Reaction E{̂+}e{̂-}-]psi(2S)pi{̂-}pi{̂-} Via Initial State Radiation at BaBar PDF](https://books.google.com/books/content/images/frontcover/fLvVwQEACAAJ?fife=w80-h100)
Author: Study of J/psi Pi+ Pi- States Produced in B0 to J/psi Pi+ Pi- K0̂ and B- to J/psi Pi+ Pi- K-
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 7
Book Description
We present results of a search for the X(3872) in B° → X(3872)K{sub S}°, X(3872) → J/???−, improved measurements of B− → X(3872)K−, and a study of the J/??+?− mass region above the X(3872). We use 232 million B{bar B} pairs collected at the?(4S) resonance with the BABAR detector at the PEP-II e+e− asymmetric-energy storage rings. The results include the 90% confidence interval 1.34 x 10−6
Initial-State Radiation Measurement of the E+e- -] Pi+pi-pi+pi- Cross Section
![Initial-State Radiation Measurement of the E+e- -] Pi+pi-pi+pi- Cross Section PDF](https://books.google.com/books/content/images/frontcover/6b2RwgEACAAJ?fife=w80-h100)
Author: A New Multivariate Method and Study Psi(2S) Via J/psi +pi Pi Final State in Pp Collisions at 200 GeV at STAR
Author: 張峰瀚Prins Almenjors och prinsessan Saras märkvärdiga kärlekshandel. Fri öfversättning från franskan. Åbo, tryckt hos Johan C. Frenckell, 1799
Author: Search for New States Decaying Into J/psi Pi+ Pi- with the ATLAS Detector at the Large Hadron Collider
Author: Wei-Cheng WongPublisher:
ISBN:
Category : Collisions (Nuclear physics)
Languages : en
Pages : 256
Book Description
Using pp collision data collected at sqrt(s ) = 7 TeV in 2010 and 2011with the ATLAS detector (A Toroidal LHC ApparatuS), corresponding to an integrated luminosity of 2.44 fb-1 , the J/PsiPi+Pi- combinations have been studied. The selection criteria have been developed, the detection efficiency of the Xc (3872) signal has been evaluated, and the systematic errors have been identified. Both the Psi(2S ) and the Xc (3872) signals are observed in the J/PsiPi+Pi- mass spectrum. The detection of the charmonium-like X, Y, Zstates is feasible with the ATLAS detector at the Large Hadron Collider (LHC). Other than the Psi(2 S ) and the Xc (3872) signals, there is no evidence for any significant enhancement in the J/PsiPi+Pi- mass spectrum. This dissertation research establishes that ATLAS can detect Xc (3872) like new particles in the J/PsiPi+Pi- final state, and with current data sample, no new states have been observed in this study.
Author: Andreas Hafner