Charge Density of a Positively Charged Vector Boson May Be Negative

Journal Article · Fri May 04 04:00:00 EDT 2007 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.98.181805· OSTI ID:20951332

Flambaum, V V; Kuchiev, M Yu ^[1]

---

1. School of Physics, University of New South Wales, Sydney 2052 (Australia)

The charge density of vector particles, for example W{sup {+-}}, may change sign. The effect manifests itself even for a free propagation, when the energy of the W-boson satisfies {epsilon}>{radical}(2)m and the standing wave is considered. The charge density of W also changes sign in a vicinity of a Coulomb center. For an arbitrary vector boson (e.g., for spin 1 mesons), this effect depends on the g-factor. An origin of this surprising effect is traced to the electric quadrupole moment and spin-orbit interaction of vector particles; their contributions to the current have a polarization nature. The corresponding charge density equals {rho}{sub Pol}=-{nabla}{center_dot}P, where P is an effective polarization vector that depends on the quadrupole moment and spin-orbit interaction. This density oscillates in space, producing zero contribution to the total charge.

• OSTI ID: 20951332
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 18 Vol. 98; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHARGE DENSITY
L-S COUPLING
LANDE FACTOR
POLARIZATION
QUADRUPOLE MOMENTS
SPIN
STANDING WAVES
VECTOR MESONS
W MINUS BOSONS
W PLUS BOSONS