375 research outputs found
Measurement of the branching ratio and form-factors for the decay K(L) ---> pi+- pi0 e+- nu(e) (anti-nu(e))
No full textThe KL→π±π0e ∓νe(ν̄e) decay was investigated with the NA48 detector at CERN SPS using a beam of long-lived neutral kaons. The branching ratio Br(KL→π ±π0e∓ν e(ν̄e))=(5.21±0.07stat±0. 09syst)×10-5 was fixed from a sample of 5464 events with 62 background events. The form factors f̄s, f̄p, λg and h̄ were found to be in agreement with previous measurements but with higher accuracy. The coupling parameter of the chiral Lagrangian L3=(-4.1±0.2)×10 -3 was evaluated from the data
Innovative percutaneous treatment of intrahepatic lithiasis by a hysterosalpingography catheter
No full textMeasurement of the Λ Polarization in ν_μ Charged Current Interactions in the NOMAD Experiment
No full textF.J.P. Soler h;t G. Sozzi D. Steele b;i U. Stiegler M. Stipcevi'c Th. Stolarczyk M. Tareb-Reyes G.N. Taylor V. Tereshchenko A. Toropin A.-M. Touchard S.N. Tovey h;k M.-T. Tran E. Tsesmelis J. Ulrichs L. Vacavant M. Valdata-Nappi d;1 V. Valuev f;j F. Vannucci K.E. Varvell M. Veltri V. Vercesi G. Vidal-Sitjes J.-M. Vieira T. Vinogradova F.V. Weber c;h T. Weisse F.F. Wilson L.J. Winton B.D. Yabsley H. Zaccone K. Zuber P. Zuccon LAPP, Annecy, France Johns Hopkins Univ., Baltimore, MD, USA Harvard Univ., Cambridge, MA, USA Univ. of Calabria and INFN, Cosenza, Italy Dortmund Univ., Dortmund, Germany JINR, Dubna, Russia Univ. of Florence and INFN, Florence, Italy CERN, Geneva, Switzerland University of Lausanne, Lausanne, Switzerland UCLA, Los Angeles, CA, USA University of Melbourne, Melbourne, Australia Inst. Nucl. Research, INR Moscow, Russia Univ. of Padova and INFN, Padova, Italy LPNHE, Univ. of
Total cross-section measurement at the ISR
No full textThe first results are presented of an experiment at the CERN intersecting storage rings, which measures the total cross-section in proton-proton collisions. The equivalent laboratory momenta are 291, 496, 1068 and 1480 GeV/c. Direct measurement of sigma /sub T/ as the ratio between the total interaction rate and the machine luminosity was made. A detailed description of the experimental apparatus and of the analysis procedure is given. sigma /sub T/ is found to increase by about 10% in the energy region studied. (10 refs)
Measurement of the total proton-proton cross-section at the ISR
No full textPresents the first results of a measurement of the total cross section sigma /sub T/ in proton-proton collisions at equivalent laboratory momenta between 291 and 1480 GeV/c at the CERN Intersecting Storage Rings (ISR). The method is based on the measurement of the ratio of the total interaction rate and the machine luminosity. The data show an increase of about 10% in sigma /sub T/ in this energy interval. (11 refs)
Measurement of the branching ratio and form factors for the decay K-L ->pi(+/-)pi(0)e(-/+)nu(e)((nu)over-bar(e))
No full textThe decay was investigated with the NA48 detector at CERN SPS using a beam of long-lived neutral kaons. The branching ratio was fixed from a sample of 5464 events with 62 background events. The form factors and were found to be in agreement with previous measurements but with higher accuracy. The coupling parameter of the chiral Lagrangian was evaluated from the data.The K L →π ± π 0 e ∓ ν e ( ν ̄ e ) decay was investigated with the NA48 detector at CERN SPS using a beam of long-lived neutral kaons. The branching ratio Br (K L →π ± π 0 e ∓ ν e ( ν ̄ e ))=(5.21±0.07 stat ±0.09 syst )×10 −5 was fixed from a sample of 5464 events with 62 background events. The form factors f ̄ s , f ̄ p , λ g and h̄ were found to be in agreement with previous measurements but with higher accuracy. The coupling parameter of the chiral Lagrangian L 3 =(−4.1±0.2)×10 −3 was evaluated from the data.The decay was investigated with the NA48 detector at CERN SPS using a beam of long-lived neutral kaons. The branching ratio was fixed from a sample of 5464 events with 62 background events. The form factors , , and were found to be in agreement with previous measurements but with higher accuracy. The coupling parameter of the chiral Lagrangian was evaluated from the data
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