Testing the Goldstone boson equivalence theorem in hadron colliders

Journal Article · Wed Jun 01 04:00:00 EDT 1994 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.49.5798· OSTI ID:7050534

Dutta, B; Nandi, S ^[1]

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1. Department of Physics, Oklahoma State University, Stillwater, Oklahoma 74078 (United States)

We test the validity of the Goldstone boson equivalence theorem by calculating the cross sections for the real hadronic processes [ital pp][r arrow][ital X][sub [ital L]][ital X][sub [ital L]]+anything ([ital X][sub [ital L]]=[ital W][sub [ital L]][sup [plus minus]] or [ital Z][sub [ital L]]) in hadron colliders. For the subprocesses, we use the exact amplitudes, and also the amplitudes given by the equivalence theorem. For the low [ital M][sub [ital X][ital L]][ital X][sub [ital L]] region (200--400 GeV), there are substantial discrepancies between the two cross sections. In addition to [ital M][sub [ital W]][sup 2]/[ital [cflx s]] terms, there are significant contributions from the [ital M][sub [ital H]][sup 2]/[ital [cflx s]] terms present in the difference between the exact and equivalence amplitude for the subprocesses. In particular, [ital M][sub [ital H]][sup 2]/[ital [cflx s]] terms are very important for [ital M][sub [ital H]][similar to] [radical][ital [cflx s]] .

• DOE Contract Number: FG05-85ER40215
• OSTI ID: 7050534
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 49:11; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662340* -- Hadron Interactions-- (1992-)
662440 -- Properties of Other Particles Including Hypothetical Particles-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AMPLITUDES
BOSONS
CROSS SECTIONS
ELEMENTARY PARTICLES
EQUIVALENCE PRINCIPLE
GOLDSTONE BOSONS
HADRON-HADRON INTERACTIONS
INTERACTIONS
MASS
PARTICLE INTERACTIONS
POSTULATED PARTICLES