Decay of a light pseudoscalar Higgs boson to the Υmeson and a photon
(2011) FYTK01 20111Theoretical Particle Physics
 Abstract (Swedish)
 This paper is concerned with calculating the branching ratio of the decay A1 −→ Υ + γ of a pseudoscalar Higgs boson, where Υ is a bound vector meson state of the quarks b and bbar The results will then be applied to the b. phenomenology of the NexttoMinimal 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 NexttoMinimal 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 pseudoscalar Higgs boson, where Υ is a bound vector meson state of the quarks b and bbar The results will then be applied to the b. phenomenology of the NexttoMinimal 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 NexttoMinimal 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 treelevel in the limit where the relative velocities of the bquarks in Υ are nonrelativistic. 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 pseudoscalar Higgs boson in that mass range. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/studentpapers/record/2225120
 author
 Boström, Emil
 supervisor

 Johan Rathsman ^{LU}
 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
 20111221 10:24:41
 date last changed
 20111221 10:24:41
@misc{2225120, abstract = {This paper is concerned with calculating the branching ratio of the decay A1 −→ Υ + γ of a pseudoscalar Higgs boson, where Υ is a bound vector meson state of the quarks b and bbar The results will then be applied to the b. phenomenology of the NexttoMinimal 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 NexttoMinimal 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 treelevel in the limit where the relative velocities of the bquarks in Υ are nonrelativistic. 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 pseudoscalar Higgs boson in that mass range.}, author = {Boström, Emil}, keyword = {standard model,Higgs boson,minimal supersymmetric standard model}, language = {eng}, note = {Student Paper}, title = {Decay of a light pseudoscalar Higgs boson to the Υmeson and a photon}, year = {2011}, }