A conserved parity operator
نویسنده
چکیده
The symmetry of Nature under a Space Inversion is described by a Parity operator. Contrary to popular belief, the Parity operator is not unique. The choice of the Parity operator requires several arbitrary decisions to be made. It is shown that alternative, equally plausible, choices leads to the definition of a Parity operator that is conserved by the Weak Interactions. The operator commonly known as CP is a more appropriate choice for a Parity operator. Pacs 11.30.Er, Charge conjugation, parity, time reversal, and other discrete symmetries A conserved parity operator 2
منابع مشابه
The operator product expansion does not imply parity doubling of hadrons
We examine whether the fact that QCD is chirally invariant at short distances necessarily leads to the prediction that hadrons form approximate parity doublets, as has been recently put forward by Glozman and collaborators. We show that this is not the case, and we exhibit some of the pitfalls of trying to link the operator product expansion to the hadron spectrum. We illustrate our arguments w...
متن کاملParity in left-right symmetric models
In left-right symmetric models, parity is never conserved. However, there exist a Z2 discrete symmetry acting on the left-right symmetric group space, which is conserved. Only for the fermions this discrete symmetry appears to be similar to parity. We considered the possibility of this left-right parity breaking in some left-right symmetric models. We studied spontaneous and explicit parity vio...
متن کاملSpontaneous Breaking of R-parity
So far most attention to the study of supersymmetric phenomenology has been made in the framework of the Minimal Supersymmetric Standard Model (MSSM) 1 with conserved R-parity . R-parity is a discrete symmetry assigned as Rp = (−1)(3B+L+2S), where L is the lepton number, B is the baryon number and S is the spin of the state. If R-parity is conserved all supersymmetric particles must always be p...
متن کاملCan the Wigner function be determined by properties for translation and parity transformation on lattice phase space?
We show that the Fano operator for one dimensional quantum system is uniquely determined by assuming the reasonable behavior under translation and parity transformation on phase space. Contrarily, for the system with lattice phase space the same procedure does not work.
متن کاملA Physical Realization of the Generalized PT -, C-, and CPT -Symmetries and the Position Operator for Klein-Gordon Fields
Generalized parity (P), time-reversal (T ), and charge-conjugation (C) operators were initially defined in the study of the pseudo-Hermitian Hamiltonians. We construct a concrete realization of these operators for Klein-Gordon fields and show that in this realization PT and C operators respectively correspond to the ordinary time-reversal and charge-grading operations. Furthermore, we present a...
متن کامل