Techniques for the measurement of Higgs-boson branching fractions

M. D. Hildreth; T. L. Barklow; D. L. Burke

doi:10.1103/PhysRevD.49.3441

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Techniques for the measurement of Higgs-boson branching fractions

M. D. Hildreth, T. L. Barklow, and D. L. Burke

Stanford Linear Accelerator Center, Stanford, California 94309

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Phys. Rev. D 49, 3441 – Published 1 April, 1994

DOI: https://doi.org/10.1103/PhysRevD.49.3441

Abstract

We describe methods that can be employed at a $\sqrt{s} = 500$ GeV $e^{+} e^{-}$ linear collider to measure the branching fractions of a Higgs boson. These methods select one Higgs-boson decay mode above all others with high purity, leaving measurable standard model backgrounds as the only source of contamination. Integrated luminosities of 50 ${fb}^{- 1}$ are required to obtain statistical errors of 10-20% on the branching fractions to $b \bar{b}$ , $τ^{+} τ^{-}$ , and $W W^{(*)}$ . For an intermediate-mass Higgs boson this is sufficient to distinguish the minimal supersymmetric standard model Higgs boson from the standard model Higgs boson over most of the supersymmetric parameter space.

References (19)

S.L. Glashow, Nucl. Phys. B22, 579 (1961) S. Weinberg, Phys. Rev. Lett. 19, 1264 (1967) A. Salam, in Elementary Particle Theory: Relativistic Groups and Analyticity (Nobel Symposium No. 8), edited by N. Svarthholm (Almqvist and Wiksell, Stockholm, 1968), p. 367
E. Witten, Nucl. Phys. B188, 513 (1981) S. Dimopoulos and H. Georgi, ibid. B193, 150 (1981) N. Sakai, Z. Phys. C 11, 153 (1981)
R.B. Palmer, Annu. Rev. Nucl. Part. Sci. 40, 529 (1990)
J. Gunion, P. Kalyniak, M. Soldate, and P. Galison, Phys. Rev. D 34, 101 (1986)
H. Haber and R. Hempfling [H. Haber (private communication)]
K. Yokoya, Nucl. Instrum. Methods A 251, 1 (1986) P. Chen, SLAC-PUB-4293, 1987 (unpublished)
T.L. Barklow, P. Chen, and W.L. Kozanecki, in Proceedings of the Workshop, Munich-Annecy-Hamburg, 1991, $e^{+}$ $e^{-}$ Collisions at 500 GeV: The Physics Potential, edited by P. Zerwas (DESY Report No. 92-123, Hamburg, 1992), p. 845 SLAC-PUB-7063 (unpublished)
R. Philippe, Phys. Rev. D 26, 1588 (1982)
R. Brown and K. Mikaelian, Phys. Rev. D 19, 922 (1979)
E. Gabrielli, Report No. ROME-550-1987 (unpublished)
S. Komamiya, in Research Directions for the Decade, Proceedings of the Summer Study, Snowmass, Colorado, 1990, edited by E. Berger (World Scientific, Singapore, 1990), p. 459
T. Sjostrand and M. Bengtsson, Comput. Phys. Commun. 43, 367 (1987)
K. Abe et al., Phys. Rev. Lett. 70, 2515 (1993)
D. Su, in Proceedings of the XXVIth International Conference on High Energy Physics, Dallas, Texas, 1992, edited by J. Sanford, AIP Conf. Proc. No. 272 (AIP, New York, 1993), p. 342
A. Djouadi, J. Kalinowski, and P. Zerwas, Z. Phys. C 54, 255 (1992)
JADE Collaboration, W. Bartel et al., Z. Phys. C 33, 23 (1986)
W.Y. Keung and W.J. Marciano, Phys. Rev. D 30, 248 (1984)
Tasso Collaboration, M. Althoff et al., Phys. Lett. 122B, 95 (1983)
P. Janot, in Proceedings of Electroweak Symmetry Breaking at Colliding-Beam Facilities, Santa Cruz, CA 1992 (unpublished)

[c1] S.L. Glashow, Nucl. Phys. B22, 579 (1961) S. Weinberg, Phys. Rev. Lett. 19, 1264 (1967) A. Salam, in Elementary Particle Theory: Relativistic Groups and Analyticity (Nobel Symposium No. 8), edited by N. Svarthholm (Almqvist and Wiksell, Stockholm, 1968), p. 367

[c2] E. Witten, Nucl. Phys. B188, 513 (1981) S. Dimopoulos and H. Georgi, ibid. B193, 150 (1981) N. Sakai, Z. Phys. C 11, 153 (1981)

[c3] R.B. Palmer, Annu. Rev. Nucl. Part. Sci. 40, 529 (1990)

[c4] J. Gunion, P. Kalyniak, M. Soldate, and P. Galison, Phys. Rev. D 34, 101 (1986)

[c5] H. Haber and R. Hempfling [H. Haber (private communication)]

[c6] K. Yokoya, Nucl. Instrum. Methods A 251, 1 (1986) P. Chen, SLAC-PUB-4293, 1987 (unpublished)

[c7] T.L. Barklow, P. Chen, and W.L. Kozanecki, in Proceedings of the Workshop, Munich-Annecy-Hamburg, 1991, $e^{+}$ $e^{-}$ Collisions at 500 GeV: The Physics Potential, edited by P. Zerwas (DESY Report No. 92-123, Hamburg, 1992), p. 845 SLAC-PUB-7063 (unpublished)

[c8] R. Philippe, Phys. Rev. D 26, 1588 (1982)

[c9] R. Brown and K. Mikaelian, Phys. Rev. D 19, 922 (1979)

[c10] E. Gabrielli, Report No. ROME-550-1987 (unpublished)

[c11] S. Komamiya, in Research Directions for the Decade, Proceedings of the Summer Study, Snowmass, Colorado, 1990, edited by E. Berger (World Scientific, Singapore, 1990), p. 459

[c12] T. Sjostrand and M. Bengtsson, Comput. Phys. Commun. 43, 367 (1987)

[c13] K. Abe et al., Phys. Rev. Lett. 70, 2515 (1993)

[c14] D. Su, in Proceedings of the XXVIth International Conference on High Energy Physics, Dallas, Texas, 1992, edited by J. Sanford, AIP Conf. Proc. No. 272 (AIP, New York, 1993), p. 342

[c15] A. Djouadi, J. Kalinowski, and P. Zerwas, Z. Phys. C 54, 255 (1992)

[c16] JADE Collaboration, W. Bartel et al., Z. Phys. C 33, 23 (1986)

[c17] W.Y. Keung and W.J. Marciano, Phys. Rev. D 30, 248 (1984)

[c18] Tasso Collaboration, M. Althoff et al., Phys. Lett. 122B, 95 (1983)

[c19] P. Janot, in Proceedings of Electroweak Symmetry Breaking at Colliding-Beam Facilities, Santa Cruz, CA 1992 (unpublished)

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Techniques for the measurement of Higgs-boson branching fractions

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