Springer LINK: The European Physical Journal C - Abstract Volume 5 Issue 2 (1998) pp 283-286

The European Physical Journal C

ISSN: 1434-6044 (printed version)
ISSN: 1434-6052 (electronic version)

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Abstract Volume 5 Issue 2 (1998) pp 283-286
DOI 10.1007/s100529800854

theoretical physics:
Two-particle correlations and $B^0\overline{B}^0$ mixing

G.V. Dass (1), K.V.L. Sarma (2) (*)

(1) Department of Physics, Indian Institute of Technology, Powai, Mumbai, 400 076 India (e-mail: guruv@niharika.phy.iitb.ernet.in, Fax: 091 22 578 3480)
(2) Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai, 400 005 India

Received: 24 November 1997 / Published online: 10 March 1998

Abstract. We study the EPR correlation implied by the entangled wavefunction of the $B^0\overline{B}^0$ pair created by the $\Upsilon(4S)$ resonance. The analysis uses the basis provided by the mass eigenstates $B_1,B_2$ rather than the flavour states $B^0,\overline{B}^0$. Data on the inclusive dilepton charge ratio are close to the expectation of quantum mechanics, but nearly 8 standard deviations away from that of complete decoherence. Our results are compared with those obtained in the $(B^0,\overline{B}^0)$ basis.

(*) Died on 28 September 1997

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The European Physical Journal C

theoretical physics: Two-particle correlations and $B^0\overline{B}^0$ mixing

theoretical physics:
Two-particle correlations and $B^0\overline{B}^0$ mixing