Simple Tests for {CP} or $P$ Violation by Sequential Decays: V1 V2 Modes With Decays Into $\bar{\ell}$epton (A) $\ell (B$) And/or $\bar{q}$ (A) $q (B$)

Dell'Aquila, Joseph R.; Nelson, Charles A.

doi:10.1103/PhysRevD.33.101

Simple Tests for {CP} or $P$ Violation by Sequential Decays: V1 V2 Modes With Decays Into $\bar{\ell}$ epton (A) $\ell (B$ ) And/or $\bar{q}$ (A) $q (B$ )

Jun, 1985

29 pages

Published in:

Phys.Rev.D 33 (1986) 101

DOI:

10.1103/PhysRevD.33.101

Report number:

SUNY BING 6/20/85

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Abstract: (APS)

In a φJ, JJ, or JΥ decay channel sin 2φ and/or sin φ terms in the azimuthal distribution would imply that P and CP separately are violated. Similarly in a φZ0, JZ0, Z0Z0, or W+W− decay channel sin 2φ terms would imply that CP is violated. For these latter modes there are several distinct α and γ signatures for CP violation. Analogous signatures for expected P violation occur in a charged φW±, JW±, or Z0W± decay channel. Stronger tests for violations occur when the two vector bosons are identical and the X has odd spin because for J=1 (>1) there are only two (three) independent amplitudes. For X of spin 0 many signatures and consistency checks are tabulated for (i) the violation of both P invariance and CP invariance in a φρ0, φφ, K*+K*−, φJ, JJ, or JΥ decay channel, for (ii) the violation of CP invariance in a φZ0, JZ0, Z0Z0, or W+W− decay channel, and for (iii) the expected violation of P invariance in a charged φW±, JW±, or Z0W± decay channel.

PARITY: VIOLATION
VIOLATION: PARITY
CP: violation
PARTICLE: CASCADE DECAY
CASCADE DECAY: PARTICLE
PARTICLE: SPIN
SPIN: PARTICLE
FINAL STATE: (2VECTOR MESON)
(2VECTOR MESON): FINAL STATE
VECTOR MESON: LEPTONIC DECAY