Energy correlation and asymmetry of secondary leptons in [ital e][sup +][ital e][sup [minus]][r arrow][ital t[bar t]]
Journal Article
·
· Physical Review, D (Particles Fields); (United States)
- III. Physikalisches Institut, RWTH Aachen, D-52074 Aachen (Germany)
Top quarks produced in the reaction [ital e][sup +][ital e][sup [minus]][r arrow][ital t[bar t]] are predicted to have a strong spin-spin correlation. We show that this correlation reflects itself in a strong energy correlation of the charged leptons produced in the decays [ital t][r arrow][ital bl][sup +][nu][sub [ital l]] ([ital [bar t]][r arrow][ital [bar b]l][sup [minus]][bar [nu]][sub [ital l]]). Analytical expressions are given for the two-dimensional distribution [ital d][sigma]/[ital dxdx][prime] where [ital x] and [ital x][prime] are scaled energy variables of [ital l][sup +] and [ital l][sup [minus]]. In the presence of a [ital CP]-violating term in the [ital e][sup +][ital e][sup [minus]][r arrow][ital t[bar t]] amplitude, this correlation acquires an antisymmetric component which is also calculated. Our formalism yields compact expressions for the single-particle energy spectra of [ital l][sup +] and [ital l][sup [minus]] and the asymmetry between them.
- OSTI ID:
- 7224604
- Journal Information:
- Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 50:7; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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Theoretical aspects of [ital K][r arrow][pi][ital e][sup +][ital e][sup [minus]] and [ital K][r arrow][pi][gamma][gamma]
Angular correlation of charged leptons from heavy-lepton pair produced in e sup minus e sup + annihilation
Journal Article
·
Thu Jul 01 00:00:00 EDT 1993
· Physical Review, D (Particles Fields); (United States)
·
OSTI ID:6522903
Theoretical aspects of [ital K][r arrow][pi][ital e][sup +][ital e][sup [minus]] and [ital K][r arrow][pi][gamma][gamma]
Conference
·
Fri Jan 31 23:00:00 EST 1992
· AIP Conference Proceedings (American Institute of Physics); (United States)
·
OSTI ID:5473483
Angular correlation of charged leptons from heavy-lepton pair produced in e sup minus e sup + annihilation
Journal Article
·
Tue May 01 00:00:00 EDT 1990
· Physical Review, D (Particles Fields); (USA)
·
OSTI ID:7039359
Related Subjects
662310* -- Weak & Electromagnetic Interactions of Leptons-- (1992-)
662350 -- Decays of Mesons-- (1992-)
662440 -- Properties of Other Particles Including Hypothetical Particles-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
BOSONS
CHARGED PARTICLES
CORRELATIONS
CP INVARIANCE
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
ENERGY
ENERGY SPECTRA
FERMIONS
HADRONS
INTERACTIONS
INVARIANCE PRINCIPLES
LEPTON-LEPTON INTERACTIONS
LEPTONS
MESONS
PAIR PRODUCTION
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
QUARKONIUM
SPECTRA
TOPONIUM
662350 -- Decays of Mesons-- (1992-)
662440 -- Properties of Other Particles Including Hypothetical Particles-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
BOSONS
CHARGED PARTICLES
CORRELATIONS
CP INVARIANCE
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
ENERGY
ENERGY SPECTRA
FERMIONS
HADRONS
INTERACTIONS
INVARIANCE PRINCIPLES
LEPTON-LEPTON INTERACTIONS
LEPTONS
MESONS
PAIR PRODUCTION
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
QUARKONIUM
SPECTRA
TOPONIUM