Implications of Vector-Meson Field Theory and Partially Conserved Axial-Vector Current on Electron-Positron Annihilation into Hadrons

Dooher, J.

doi:10.1103/physrevlett.19.600

Cited by 28 publications

(4 citation statements)

References 7 publications

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“…We discuss in the appendix the relationship of this form with the single-pion momentum distribution (2). Clearly the essentially uncorrelated distribution (9) should only be expected to have validity, if at all, for large n. We shall only apply the results consequent from (9) for n 14, All correlation effects, isospin requirements, Bose-statistics, and effects associated with higher mass particles (K, N, i?, Y, y) have been neglected.…”

Section: Introductionmentioning

confidence: 99%

Statistical Model for Electron-Positron Annihilation into Hadrons

1970

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A statistical model for the production of multibody hadronic states by e+e-annihilation is discussed, We associate the secondary hadron momentum distributions for colliding beam processes with the exponentially falling transverse-momentum distributions in hadron-hadron collisions, The consequence of this picture is that at high energies hadron multiplicity rises linearly with center-of-mass energy unlike the log s behavior for the multiplicity of secondaries in hadron-hadron collisions. If the total annihilat:ion cross section is assumed to have a power falloff rvs-m, the n-pion cross sections follow a Poisson distribution with the most probable multiplicity n, = &/ + 3-m and -375 MeV. An alternate statistical model based on jets is also briefly discussed. The storage rings now .being constructed or envisaged should easily distinguish between the various possibilities.

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Section: Introductionmentioning

confidence: 99%

Statistical Model for Electron-Positron Annihilation into Hadrons

1970

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“…Furthermore, the field algebra predicts a finite c-number coefficient [14] of the Schwinger term [41]. It implies [42] that the cross section, σ(e + e − → hadrons), goes to zero faster than s −2 as s → ∞, where s is the total energy in the center of mass system. However it is inconsistent with experiment [27].…”

Section: Two Photon Decays Of K Lmentioning

confidence: 99%

Nonfactorizable Contributions in Nonleptonic Weak Interactions of K Mesons

Terasaki

2001

Int. J. Mod. Phys. A

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K → ππ, K L -K S mass difference and K L → γγ ( * ) are studied systematically by decomposing their amplitude into a sum of factorizable and nonfactorizable ones. The former is calculated by using the naive factorization while the latter is assumed to be dominated by dynamical contributions of various hadron states. Non-factorizable amplitudes for the K → ππ decays are estimated by using a hard pion approximation in the infinite momentum frame. Long distance non-factorizable contributions to the K L -K S mass difference is dominated by those of pseudo scalar meson poles and ππ intermediate states. The amplitude for the K L → γγ ( * ) is given by a sum of pole contributions of pseudo scalar mesons in the s-channel and K * meson in the crossed channel.By fitting the results on the K → ππ, K L -K S mass difference and K L → γγ to the observations, values of unknown parameters involved are estimated and then, by using the resulting values of these parameters, the form factor for the Dalitz decays of K L and their rates are predicted. The results are compared with the existing data.

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“…For atot there was obtained the exact result [39][40][41] where f(q2) is a decreasing function of q2. Eq.…”

Section: Vector Dominance Theory (Vdm) Based Upon Field Algebramentioning

confidence: 99%