Intermediate mass Higgs bosons at TeV $e\gamma$ colliders in the $\mathcal{MSSM}$

Abstract

We study the cross sections for the production of intermediate mass Higgs bosons via the reactions $e^{-}\gamma \to {\nu }_e{W}^{-}{\Phi }^0$, $e^{-}\gamma \to {\nu }_e{H}^{-}{\Phi }^0$, $e^{-}\gamma \to e^{-}{Z}^0{\Phi }^0$ and $e^{-}\gamma \to e^{-}{H}^{+}{H}^{-}$ in the Minimal Supersymmetric Standard Model (with ${\Phi }^0=H^0,h^0$ and, where possible, $A^0$) at TeV energies, taking into account $b$--tagging capabilities. We find that the rates for $e^{-}\gamma \to {\nu }_e{W}^{-}{\Phi }^0$ are large enough to permit the discovery of at least one between $h^0$ and $H^0$ over the whole intermediate mass range of $M_{A^0}$, at all $\tan \beta$, using the $(jj)(b\bar{b})$ final state. The $\mathcal{C}\mathcal{P}$-odd neutral $A^0$ and the charged $H^{\pm }$'s can be detected via the processes $e^{-}\gamma \to {\nu }_e{H}^{-}{A}^0$, with $A^0\to b\bar{b}$, and $e^{-}\gamma \to e^{-}{H}^{+}{H}^{-}$, resorting to the leptonic decay $H^{\pm }\to {\nu }_{\tau }{\tau }^{+}({\bar{\nu }}_{\tau }{\tau }^{-})$, but only for $M_{A^0}\approx 60$ GeV. Finally, we present explicit formulae for the helicity amplitudes of these processes.

24 pages and 9 figures (figs.1-4 included, figs.5-9 will be sent on request), LaTex file (uses Feynman.tex), Turin Univ. preprint DFTT 79/93 (Some control sequences undefined in previous version have been added)

References in corpus (14)

• Higgs Bosons: Intermediate Mass Range at e+e- Colliders
• Testing the Higgs Sector of the Minimal Supersymmetric Standard Model at Large Hadron Colliders
• Heavy Quarks and Leptons at $e^{+}{e}^{-}$ Colliders
• Associated production of Intermediate Higgs or Z-boson with $t\bar{t}$ pair in $\gamma \gamma$ collision
• Using $b$-Tagging to Detect $t\anti t$~Higgs Production with Higgs$\rta b\anti b$
• Galaxy Clusters Associated with Short GRBs. II. Predictions for the Rate of Short GRBs in Field and Cluster Early-Type Galaxies
• Intermediate and Heavy Higgs Boson Physics at a 0.5 TeV e^+ e^- Collider
• Guaranteed Detection of a Minimal Supersymmetric Model Higgs Boson at Hadron Supercolliders
• Detecting an Intermediate Mass Charged Higgs at $\gamma \gamma$ Colliders
• Search for the intermediate Mass Higgs Signal at TeV $e\gamma$ colliders
• Identifying the Higgs Boson in Electron--Photon Collisions
• $WZ$, $W\gamma$, $WW$ and $ZZ$ pair productions at TeV $e\gamma$ colliders
• Detection of the heavy Higgs boson at $\gamma \gamma$ colliders
• Trying to Catch the Elusive $a^0$ and More. Reactions Initiated by $b$--Quarks the Higgs Sector of $\mathcal{MSSM}$

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• Detecting Heavy Charged Higgs Bosons at the LHC with Four b-Quark Tags
• The Wh decay channel as a probe of charged Higgs boson production at the Large Hadron Collider
• The process `e+ e- --> H t t-bar' and its backgrounds at future electron-positron colliders
• Search for Anomalous Couplings at $e\gamma$ Colliders
• Six-jet production at lepton colliders
• Intermediate mass standard model Higgs boson at the proposed CERN LEP$\otimes$LHC $ep$ collider
• $e^{+}{e}^{-}\to H^{+}{H}^{-}$ signals at LEP2 energies in the Minimal Supersymmetric Standard Model
• Intermediate mass Higgs bosons of the Minimal Supersymmetric Standard Model at the proposed CERN LEP$\otimes$LHC $ep$ collider
• Charged Higgs scalar production in single-top mode (and other) at future $ep$ colliders in the Minimal Supersymmetric Standard Model