Determining spin through quantum azimuthal-angle correlations

Matthew R. Buckley; Seong Youl Choi; Kentarou Mawatari; Hitoshi Murayama

doi:10.1016/j.physletb.2009.01.034

Determining spin through quantum azimuthal-angle correlations

Matthew R. Buckley
, Seong Youl Choi
, Kentarou Mawatari
, Hitoshi Murayama

School of Arts and Sciences, New High Energy Theory Center

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

Determining the spin of new particles is critical in identifying the true theory among various extensions of the Standard Model at the next generation of colliders. Quantum interference between different helicity amplitudes was shown to be effective when the final state is fully reconstructible. However, many interesting new physics processes allow only for partial reconstruction. In this Letter, we show how the interference effect can be unambiguously extracted even in processes that have two-fold ambiguity, by considering the correlation between two decay planes in e⁺ e^- collisions.

Original language	English (US)
Pages (from-to)	275-279
Number of pages	5
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	672
Issue number	3
DOIs	https://doi.org/10.1016/j.physletb.2009.01.034
State	Published - Feb 23 2009

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

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10.1016/j.physletb.2009.01.034

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title = "Determining spin through quantum azimuthal-angle correlations",

abstract = "Determining the spin of new particles is critical in identifying the true theory among various extensions of the Standard Model at the next generation of colliders. Quantum interference between different helicity amplitudes was shown to be effective when the final state is fully reconstructible. However, many interesting new physics processes allow only for partial reconstruction. In this Letter, we show how the interference effect can be unambiguously extracted even in processes that have two-fold ambiguity, by considering the correlation between two decay planes in e+ e- collisions.",

author = "Buckley, \{Matthew R.\} and Choi, \{Seong Youl\} and Kentarou Mawatari and Hitoshi Murayama",

note = "Funding Information: K.M. acknowledges the hospitality of the Chonbuk National University where part of this work was carried out. The work of S.Y.C. was supported in part by the Korea Research Foundation Grant funded by the Korean Government (MOERHRD, Basic Research Promotion Fund) (KRF-2007-521-C00065) and in part by KOSEF through CHEP at Kyungpook National University. The work of M.R.B. and H.M. was supported in part by World Premier International Research Center Initiative (WPI Initiative), MEXT, Japan, in part by the US DOE under Contract DE-AC03-76SF00098, and in part by the NSF under grant PHY-04-57315.",

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doi = "10.1016/j.physletb.2009.01.034",

language = "English (US)",

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pages = "275--279",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

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T1 - Determining spin through quantum azimuthal-angle correlations

AU - Buckley, Matthew R.

AU - Choi, Seong Youl

AU - Mawatari, Kentarou

AU - Murayama, Hitoshi

N1 - Funding Information: K.M. acknowledges the hospitality of the Chonbuk National University where part of this work was carried out. The work of S.Y.C. was supported in part by the Korea Research Foundation Grant funded by the Korean Government (MOERHRD, Basic Research Promotion Fund) (KRF-2007-521-C00065) and in part by KOSEF through CHEP at Kyungpook National University. The work of M.R.B. and H.M. was supported in part by World Premier International Research Center Initiative (WPI Initiative), MEXT, Japan, in part by the US DOE under Contract DE-AC03-76SF00098, and in part by the NSF under grant PHY-04-57315.

PY - 2009/2/23

Y1 - 2009/2/23

N2 - Determining the spin of new particles is critical in identifying the true theory among various extensions of the Standard Model at the next generation of colliders. Quantum interference between different helicity amplitudes was shown to be effective when the final state is fully reconstructible. However, many interesting new physics processes allow only for partial reconstruction. In this Letter, we show how the interference effect can be unambiguously extracted even in processes that have two-fold ambiguity, by considering the correlation between two decay planes in e+ e- collisions.

AB - Determining the spin of new particles is critical in identifying the true theory among various extensions of the Standard Model at the next generation of colliders. Quantum interference between different helicity amplitudes was shown to be effective when the final state is fully reconstructible. However, many interesting new physics processes allow only for partial reconstruction. In this Letter, we show how the interference effect can be unambiguously extracted even in processes that have two-fold ambiguity, by considering the correlation between two decay planes in e+ e- collisions.

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U2 - 10.1016/j.physletb.2009.01.034

DO - 10.1016/j.physletb.2009.01.034

M3 - Article

AN - SCOPUS:59549101639

SN - 0370-2693

VL - 672

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JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 3

ER -

Determining spin through quantum azimuthal-angle correlations

Abstract

All Science Journal Classification (ASJC) codes

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