Home > Research > Publications & Outputs > Analyzing the scalar top coannihilation region ...

Research

Electronic data

  • PhysRevD

    Rights statement: © 2005 The American Physical Society

    Final published version, 1.4 MB, PDF document

Links

Text available via DOI:

Keywords

View graph of relations

Analyzing the scalar top coannihilation region at the International Linear Collider

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Published

Standard

Analyzing the scalar top coannihilation region at the International Linear Collider. / Carena, Marcela S.; Finch, A.; Freitas, A. et al.
In: Physical Review D, Vol. 72, No. 11, 115008, 12.12.2005.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Carena, MS, Finch, A, Freitas, A, Milstene, C, Nowak, H & Sopczak, A 2005, 'Analyzing the scalar top coannihilation region at the International Linear Collider', Physical Review D, vol. 72, no. 11, 115008. https://doi.org/10.1103/PhysRevD.72.115008

APA

Carena, M. S., Finch, A., Freitas, A., Milstene, C., Nowak, H., & Sopczak, A. (2005). Analyzing the scalar top coannihilation region at the International Linear Collider. Physical Review D, 72(11), Article 115008. https://doi.org/10.1103/PhysRevD.72.115008

Vancouver

Carena MS, Finch A, Freitas A, Milstene C, Nowak H, Sopczak A. Analyzing the scalar top coannihilation region at the International Linear Collider. Physical Review D. 2005 Dec 12;72(11):115008. doi: 10.1103/PhysRevD.72.115008

Author

Carena, Marcela S. ; Finch, A. ; Freitas, A. et al. / Analyzing the scalar top coannihilation region at the International Linear Collider. In: Physical Review D. 2005 ; Vol. 72, No. 11.

Bibtex

@article{8cc15e5a4aa0429eb772bec8114b9ff8,
title = "Analyzing the scalar top coannihilation region at the International Linear Collider",
abstract = "The minimal supersymmetric standard model opens the possibility of electroweak baryogenesis provided that the light scalar top quark (stop) is lighter than the top quark. In addition, the lightest neutralino is an ideal candidate to explain the existence of dark matter. For a light stop with mass close to the lightest neutralino, the stop-neutralino coannihilation mechanism becomes efficient, thus rendering the predicted dark matter density compatible with observations. Such a stop may however remain elusive at hadron colliders. Here it is shown that a future linear collider provides a unique opportunity to detect and study the light stop. The production of stops with small stop-neutralino mass differences is studied in a detailed experimental analysis with a realistic detector simulation including a CCD vertex detector for flavor tagging. Furthermore, the linear collider, by precision measurements of superpartner masses and mixing angles, also allows to determine the dark matter relic density with an accuracy comparable to recent astrophysical observations.",
keywords = "sparticle production, minimal supersymmetric standard model, electroweak theories, quark mass, mass differences, sparticles, dark matter",
author = "Carena, {Marcela S.} and A. Finch and A. Freitas and C. Milstene and H. Nowak and Andre Sopczak",
note = "{\textcopyright} 2005 The American Physical Society",
year = "2005",
month = dec,
day = "12",
doi = "10.1103/PhysRevD.72.115008",
language = "English",
volume = "72",
journal = "Physical Review D",
issn = "1550-7998",
publisher = "American Physical Society",
number = "11",

}

RIS

TY - JOUR

T1 - Analyzing the scalar top coannihilation region at the International Linear Collider

AU - Carena, Marcela S.

AU - Finch, A.

AU - Freitas, A.

AU - Milstene, C.

AU - Nowak, H.

AU - Sopczak, Andre

N1 - © 2005 The American Physical Society

PY - 2005/12/12

Y1 - 2005/12/12

N2 - The minimal supersymmetric standard model opens the possibility of electroweak baryogenesis provided that the light scalar top quark (stop) is lighter than the top quark. In addition, the lightest neutralino is an ideal candidate to explain the existence of dark matter. For a light stop with mass close to the lightest neutralino, the stop-neutralino coannihilation mechanism becomes efficient, thus rendering the predicted dark matter density compatible with observations. Such a stop may however remain elusive at hadron colliders. Here it is shown that a future linear collider provides a unique opportunity to detect and study the light stop. The production of stops with small stop-neutralino mass differences is studied in a detailed experimental analysis with a realistic detector simulation including a CCD vertex detector for flavor tagging. Furthermore, the linear collider, by precision measurements of superpartner masses and mixing angles, also allows to determine the dark matter relic density with an accuracy comparable to recent astrophysical observations.

AB - The minimal supersymmetric standard model opens the possibility of electroweak baryogenesis provided that the light scalar top quark (stop) is lighter than the top quark. In addition, the lightest neutralino is an ideal candidate to explain the existence of dark matter. For a light stop with mass close to the lightest neutralino, the stop-neutralino coannihilation mechanism becomes efficient, thus rendering the predicted dark matter density compatible with observations. Such a stop may however remain elusive at hadron colliders. Here it is shown that a future linear collider provides a unique opportunity to detect and study the light stop. The production of stops with small stop-neutralino mass differences is studied in a detailed experimental analysis with a realistic detector simulation including a CCD vertex detector for flavor tagging. Furthermore, the linear collider, by precision measurements of superpartner masses and mixing angles, also allows to determine the dark matter relic density with an accuracy comparable to recent astrophysical observations.

KW - sparticle production

KW - minimal supersymmetric standard model

KW - electroweak theories

KW - quark mass

KW - mass differences

KW - sparticles

KW - dark matter

U2 - 10.1103/PhysRevD.72.115008

DO - 10.1103/PhysRevD.72.115008

M3 - Journal article

VL - 72

JO - Physical Review D

JF - Physical Review D

SN - 1550-7998

IS - 11

M1 - 115008

ER -