248 citations · 1.1k across the 17 of their papers we have counts for
17 papers · 1 filter
Precise Measurements of Direct CP Violation, CPT Symmetry, and Other Parameters in the Neutral Kaon System
KTeV Collaboration, E. Abouzaid, M. Arenton +56
We present precise tests of CP and CPT symmetry based on the full dataset of K to pipi decays collected by the KTeV experiment at Fermi National Accelerator Laboratory during 1996,…
Measurement of the rare decay pi0 -> e+ e-
E. Abouzaid
The branching ratio of the rare decay pi0 -> e+ e- has been measured precisely, using the complete data set from the KTeV E799-II experiment at Fermilab. We observe 794 candidate p…
Measurements of the Branching Fractions and Decay Distributions for KL->πμνγand KL->πeνγ
T. Alexopoulos, T. Andre, M. Arenton +56
We present measurements of R_Kl3rad = Gamma(KL->π\ellνγ; Egcm > 10 MeV)/Gamma(KL->π\ellν), where ell = mu or e, and Egcm is the photon energy in the kaon rest frame. These measurem…
Measurements of Semileptonic KL Decay Form Factors
KTeV Collaboration, T. Alexopoulos
We present new measurements of KL semileptonic form factors using data collected in 1997 by the KTeV (E832) experiment at Fermilab. The measurements are based 1.9 million KL->pi e…
Measurements of KL Branching Fractions and the CP Violation Parameter |eta+-|
KTeV Collaboration, T. Alexopoulos
We present new measurements of the six largest branching fractions of the KL using data collected in 1997 by the KTeV experiment (E832) at Fermilab. The results are B(KL -> pi e nu…
Search for the Rare Decay KL --> pi0 ee
KTeV collaboration, A. Alavi-Harati
The KTeV/E799 experiment at Fermilab has searched for the rare kaon decay KL--> pi0ee. This mode is expected to have a significant CP violating component. The measurement of its br…
Measurements of the Decay KL->e+e-mu+mu-
The KTeV Collaboration
The KTeV experiment at Fermilab has isolated a total of 132 events from the rare decay KL->e+e-mu+mu-, with an estimated background of 0.8 events. The branching ratio of this mode…
Measurements of Direct CP Violation, CPT Symmetry, and Other Parameters in the Neutral Kaon System
KTeV Collaboration, A. Alavi-Harati
We present a series of measurements based on K -> pi+pi- and K -> pi0pi0 decays collected in 1996-1997 by the KTeV experiment (E832) at Fermilab. We compare these four K -> pipi de…
Radiative Decay of the ψ(2S) into Two Pseudoscalar Mesons
BES Collaboration
Radiative decays of the radially excited charmonium resonance, ψ(2S), into ππ, K Kbar and ηηfinal states have been measured in a sample of 3.96 * 10^6 ψ(2S) events collected by the…
Measurements of the Cross Section for e+e- -> hadrons at Center-of-Mass Energies from 2 to 5 GeV
J. Z. Bai
We report values of for 85 center-of-mass energies between 2 and 5 GeV measured with the upgraded Beijing Spectrometer at the Beijin…
Measurement of decays to baryon pairs
J. Z. Bai
A sample of 3.95M decays registered in the BES detector are used to study final states containing pairs of octet and decuplet baryons. We report branching fractions for $ψ(…
Partial Wave Analysis of
J. Z. Bai
BES data on are presented. There is a strong peak due to , which is fitted with a Breit-Wigner amplitude with -dependent widths for…
Measurement of the Inclusive Charm Cross Section at 4.03 GeV and 4.14 GeV
BES Collaboration
The cross section for charmed meson production at and 4.14 GeV has been measured with the Beijing Spectrometer. The measurement was made using 22.3 of…
Partial Wave Analysis of
J. Z. Bai
BES data on have been analyzed into partial waves. We fit with resonances having at 1275 MeV, at 1500 MeV, at…
Partial Wave Analysis of
J. Z. Bai
BES data on are presented. The contribution peaks strongly near threshold. It is fitted with a broad resonance with mass $M = 1800 \…
Charmonium Decays to Axialvector plus Pseudoscalar Mesons
BES Collaboration, J. Z. Bai
A sample of 3.79 million psi(2S) decays observed in the BES detector is used to study the decays of charmonium to axialvector plus pseudoscalar mesons. The branching fraction for p…
Study of the P-wave charmonium state χ_{cJ} in ψ(2S) decays
J. Z. Bai
The processes , and have been studied using a sample of produced decays. We determine the total width of the $χ…