Charge and Isospin Fluctuations in High Energy pp-Collisions

Details Charge and Isospin Fluctuations in High Energy pp-Collisions Charge and Isospin Fluctuations in High Energy pp-Collisions

2004-05-14

arxiv.org/abs/hep-ph/0405135v2

SpringerProc.Phys.98:163-167,2005

Physics

High Energy Physics

High Energy Physics - Phenomenology

Latex, 5 pages, no figures. To appear in the proceedings of 9th Adriatic Meeting, Dubrovnik, Croatia, 4 - 14 September 2003. A

Scientific paper

Charge and isospin event-by-event fluctuations in high-energy pp-collisions are predicted within the Unitary Eikonal Model, in particular the fluctuation patterns of the ratios of charged-to-charged and neutral-to-charged pions. These fluctuations are found to be sensitive to the presence of unstable resonances, such as $\rho $ and $\omega $ mesons. We predict that the charge-fluctuation observable $D_{UEM}$ should be restricted to the interval $8/3\le D_{UEM}\le 4$ depending on the $\rho /\pi $ production ratio. Also, the isospin fluctuations of the DCC-type of the ratio of neutral-to-charged pions are suppressed if pions are produced together with $\rho $ mesons.

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