Understanding the like-sign dimuon charge asymmetry in $p\bar{p}$ collisions

Abstract

The DØ collaboration has measured the like-sign dimuon charge asymmetry in $p\bar{p}$ collisions at the Fermilab Tevatron collider. The result is significantly different from the standard model expectation of CP violation in mixing. In this paper we consider the possible causes of this asymmetry and identify one standard model source not considered before. It decreases the discrepancy of the like-sign dimuon charge asymmetry with the standard model prediction, although does not eliminate it completely.

7 pages, 0 figures

References in corpus (5)

• Measurement of the semileptonic charge asymmetry in B0 meson mixing with the D0 detector
• Measurement of the CP-violation parameter of B^0 mixing and decay with pp(bar) -> mu mu X data
• Measurement of the semileptonic charge asymmetry using Bs^0 -> D_s mu X decays
• Second order direct CP asymmetry in B_(s) -> X l nu
• The like-sign dimuon charge asymmetry at the Tevatron: corrections from B meson fragmentation

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