Threshold Effects on Heavy Quark Production in $\gamma \gamma$ Interactions

Abstract

The exchange of gluons between heavy quarks produced in $e^{+}{e}^{-}$ interactions results in an enhancement of their production near threshold. We study QCD threshold effects in $\gamma \gamma$ collisions. The results are relevant to heavy quark production by beamstrahlung and laser back-scattering in future linear collider experiments. Detailed predictions for top, bottom and charm production are presented.

26 pages, 12 figures available in ps upon request, revtex, MAD/PH/701 (revised version)

Cited by in corpus (47)

• Rates for Inclusive Deep-Inelastic Electroproduction of Charm Quarks at HERA
• Associated production of Intermediate Higgs or Z-boson with $t\bar{t}$ pair in $\gamma \gamma$ collision
• Large-$p_{\perp }$ Heavy-Quark Production in Two-Photon Collisions
• Neutral top-pion and top-charm production in high energy $e^{+}{e}^{-}$ collisions
• Resolved Photon Processes
• Searching for Leptoquarks in electron-photon Collisions
• The $W$ Boson Loop Background to H -> ZZ at Photon-photon Colliders
• Complete Next to Leading Order QCD Corrections to the Photon Structure Functions $F_2^{\gamma }(x,Q^2)$ and $F_L^{\gamma }(x,Q^2)$
• High Energy Photon-Photon Collisions -
• Probing neutral top-pion via a flavor-changing process $\gamma \gamma \to t\bar{c}{\Pi }_t^0$
• Measuring the Gamma-Gamma Coupling of the Higgs at Linear Colliders
• Radiative Corrections to $\gamma \gamma \to t\bar{t}$ in the Electroweak Standard Model
• Production of the neutral toppion at the e gamma colliders
• Associated production of neutral toppion with a pair of heavy quarks in $\gamma \gamma$ collisions
• Anomalous gauge couplings of the Higgs boson at high energy photon colliders
• Tests for a Strong Electroweak Sector at Future e^+e^- High Energy Colliders
• Color Octet Contribution to $J/\psi$ Production at a Photon Linear Collider
• The effects of the little Higgs models on $t\bar{t}{h}^0$ production via $\gamma \gamma$ collision at linear colliders
• Transverse Polarization of Top Quarks Produced at a Photon-Photon Collider
• Searching for string resonances in e^+e^- and γγcollisions
• The flavor-changing top-charm quark production in the littlest Higgs model with T parity at the ILC
• Top quark polarization as a probe of $t\bar{t}$ threshold dynamics
• New gauge boson $B_H$ production associated with W boson pair via $\gamma \gamma$ collision in the littlest Higgs model
• Study of the single neutral top-pion production process at $\gamma \gamma$ collider
• Single production of the vector-like top quark in the littlest Higgs model at TeV energy $e^{-}\gamma$ colliders
• Higgs boson production in photon-photon collision at ILC: a comparative study in different little Higgs models
• Probing the Heavy Quark Content of the Photon Using b Tagging at High Energy $e\gamma$ and $e^{+}{e}^{-}$ Colliders
• Top quark pair production via polarized and unpolarized photons in Supersymmetric QCD
• Detection of the heavy Higgs boson at $\gamma \gamma$ colliders
• Yukawa corrections to top pair production in photon-photon collision
• Neutral top-pion and $t\gamma (z)$ production at the HERA and THERA colliders
• Supersymmetric QCD Corrections to Top Quark Pair Production in Photon-Photon Collision
• Yukawa Corrections to gamma gamma --> b\bar{b} in the Topcolor Assisted Technicolor Models
• Physics at High Energy Photon Photon Colliders
• Testing the Littlest Higgs Model with T-parity in Bottom Quark Pair Production at High Energy Photon Colliders
• Probing the lightest new gauge boson $B_H$ in the littlest Higgs model via the processes $\gamma \gamma \to f\bar{f}{B}_H$ at the ILC
• Probing topcolor-assisted technicolor models from like-sign tau pair production in e gamma collisions
• Distinguishing technicolor models via tt-bar productions at polarized photon colliders
• The SUSY EW-like corrections to top pair production in photon-photon collisions
• Littlest Higgs model and top-charm production at high-energy linear colliders
• The flavor-changing top-charm associated productions at ILC in littlest Higgs model with T parity
• Expected sensitivity on the anomalous quartic neutral gauge couplings in $\gamma \gamma$ collisions at the CLIC
• The correction of the littlest Higgs model to the Higgs production process $e^{-}\gamma \to {\nu }_e{W}^{-}H$ in $e^{-}\gamma$ collisions
• Associated production of a neutral top-Higgs with a heavy-quark pair in the γγcollisions at ILC
• The production of the new gauge boson $B_H$ via $e^{-}\gamma$ collision in the littlest Higgs model
• Finite width and irreducible background effects to $t\bar{t}$ production at $\gamma \gamma$ Next Linear Colliders
• Anomaly Puzzle, Curved-Spacetime Spinor Hamiltonian, and String Phenomenology