Decay of a light pseudo-scalar Higgs boson to the Υ-meson and a photon
(2011) FYTK01 20111Theoretical Particle Physics - Undergoing reorganization
- Abstract (Swedish)
- This paper is concerned with calculating the branching ratio of the decay A1 −→ Υ + γ of a pseudo-scalar Higgs boson, where Υ is a bound vector meson state of the quarks b and b-bar The results will then be applied to the b. phenomenology of the Next-to-Minimal Supersymmetric Standard Model in the case where A1 has a mass in the interval 9.46 − 12 GeV . The paper will review the concept of spontaneous symmetry breaking through a few simple examples and present the Higgs mechanism of the Standard Model.
Following this is a general introduction to supersymmetric extensions of the Standard Model and a discussion of the Minimal Supersymmetric Standard Model and Next-to-Minimal Supersymmetric Standard Model. After a development of the... (More) - This paper is concerned with calculating the branching ratio of the decay A1 −→ Υ + γ of a pseudo-scalar Higgs boson, where Υ is a bound vector meson state of the quarks b and b-bar The results will then be applied to the b. phenomenology of the Next-to-Minimal Supersymmetric Standard Model in the case where A1 has a mass in the interval 9.46 − 12 GeV . The paper will review the concept of spontaneous symmetry breaking through a few simple examples and present the Higgs mechanism of the Standard Model.
Following this is a general introduction to supersymmetric extensions of the Standard Model and a discussion of the Minimal Supersymmetric Standard Model and Next-to-Minimal Supersymmetric Standard Model. After a development of the formalism for treating decays to bound states the branching ratio for the decay A1 −→ Υ + γ is computed at tree-level in the limit where the relative velocities of the b-quarks in Υ are non-relativistic. For Higgs particle masses in the interval 9.66 − 10.5 GeV it is shown that the branching ratio BR(A1 → Υ + γ) is large enough so that the decay channel could give an opportunity to detect the pseudo-scalar Higgs boson in that mass range. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/2225120
- author
- Boström, Emil
- supervisor
- organization
- course
- FYTK01 20111
- year
- 2011
- type
- M2 - Bachelor Degree
- subject
- keywords
- standard model, Higgs boson, minimal supersymmetric standard model
- language
- English
- id
- 2225120
- date added to LUP
- 2011-12-21 10:24:41
- date last changed
- 2011-12-21 10:24:41
@misc{2225120, abstract = {{This paper is concerned with calculating the branching ratio of the decay A1 −→ Υ + γ of a pseudo-scalar Higgs boson, where Υ is a bound vector meson state of the quarks b and b-bar The results will then be applied to the b. phenomenology of the Next-to-Minimal Supersymmetric Standard Model in the case where A1 has a mass in the interval 9.46 − 12 GeV . The paper will review the concept of spontaneous symmetry breaking through a few simple examples and present the Higgs mechanism of the Standard Model. Following this is a general introduction to supersymmetric extensions of the Standard Model and a discussion of the Minimal Supersymmetric Standard Model and Next-to-Minimal Supersymmetric Standard Model. After a development of the formalism for treating decays to bound states the branching ratio for the decay A1 −→ Υ + γ is computed at tree-level in the limit where the relative velocities of the b-quarks in Υ are non-relativistic. For Higgs particle masses in the interval 9.66 − 10.5 GeV it is shown that the branching ratio BR(A1 → Υ + γ) is large enough so that the decay channel could give an opportunity to detect the pseudo-scalar Higgs boson in that mass range.}}, author = {{Boström, Emil}}, language = {{eng}}, note = {{Student Paper}}, title = {{Decay of a light pseudo-scalar Higgs boson to the Υ-meson and a photon}}, year = {{2011}}, }