Exclusive Hadronic Final States in e+e-Interactions at BABAR | Zendy

S. Saremi | Zendy

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Exclusive Hadronic Final States in e⁺e^-Interactions at BABAR

Author(s) -

S. Saremi

Publication year - 2007

Language(s) - English

Resource type - Conference proceedings

DOI - 10.3360/dis.2007.202

Subject(s) - physics , annihilation , hadron , meson , center (category theory) , electron–positron annihilation , center of mass (relativistic) , virtual particle , atomic physics , nuclear physics , elementary particle , particle physics , crystallography , photon , chemistry , classical mechanics , quantum mechanics , energy–momentum relation

The first observation of e{sup +}e{sup -} annihilation into states of positive C parity, {rho}{sup 0}{rho}{sup 0} and {phi}{phi}{sup 0} is reported. It is shown that these final states are produced through two-virtual-photon annihilation. this is based on the distributions of cos{theta}*, where {theta}* is the center-of-mass polar angle of {phi} or {rho}{sup 0}. The cross sections for the |cos{theta}*| < 0.8 are measured. In addition, the observation of another channel, e{sup +}e{sup -} {yields} {phi}{eta} near {radical}s = 10.58 Gev with a significance of 6.5{sigma} is discussed. The cross section of the later channel for |cos{theta}*| < 0.8 is measured, where {theta}* is the center-of-mass polar angle of {phi} meson.

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