arXiv subjects

M. Gintner

Publications and source records attributed to M. Gintner.

6 recordsLinked to original sources

arXiv2009

Probing the strong electroweak symmetry breaking in a model with a vector resonance

We systematically study the possibility to probe the physics behind the electroweak symmetry breaking at the LHC assuming new strong interactions being responsible for the effect. The new physics is described by the Higgs-less effective Lagrangian with a vector resonance in the particle spectrum, in addition to the Standard Model fields. We analyze signals of the resonance in the mixing-induced LHC processes pp-> abX, ab=t\bar{t},b\bar{b},t\bar{b},W^+Z,W^+W^-. At this level of our calculations we do not consider further decays of the quarks and of the gauge bosons.

hep-ph↗

arXiv2008

Signatures of Strong Electroweak Symmetry Breaking in pp -> b \bar{b} t \bar{t} + X at LHC

We study the possible production of the $ρ$-resonance from the Strong Electroweak Symmetry Breaking sector at LHC. Due to possibly enhanced couplings of $ρ$ to the top and bottom quarks we focus on the process pp -> b \bar{b} t \bar{t} where either b \bar{b} or t \bar{t} are the products of the $ρ$ decay.

hep-ph↗

arXiv2007

Non-equilibrium Phase Transitions in Ultrarelativistic Nuclear Collisions

Highly excited nuclear matter created in ultrarelativistic heavy-ion collisions possibly reaches the phase of quark deconfinement. It quickly cools down and hadronises. We explain that the process of hadronisation may likely be connected with disintegration into fragments. Observable signals of such a scenario are proposed.

nucl-th↗

arXiv2007

Study of event-by-event fluctuations in heavy ion collisions

We propose Kolmogorov-Smirnov test as a means for recognising event-by-event fluctuations of rapidity distributions in relativistic heavy ion collisions. Such fluctuations may be induced by the spinodal decomposition of the rapidly expanding system during the 1st order quark-hadron phase transition.

nucl-th↗

arXiv1996

Anomalous Couplings and Chiral Lagrangians: An Update

We present an update of the limits expected for anomalous gauge boson couplings in the language of chiral Lagrangian operators at the LHC and the Linear Collider. Both, the $e^+e^-$ and the $γγ$ mode of the Linear Collider are analyzed. With a 500~GeV $e^+e^-$ collider, and an integrated luminosity of 50~--~80~fb$^{-1}$, one reaches the domain of precision measurements.

hep-ph↗

arXiv1995

The Measurement of Tri-Linear Gauge Boson Couplings at $e^+e^-$ Colliders

We describe a detailed study of the process $e^+e^- \to \ellν_\ell q \bar{q}$ and the measurement of tri-linear gauge boson couplings (TGV's) at LEP200 and at a 500~GeV and 1~TeV NLC. We included all tree level Feynman diagrams contributing to the four-fermion final states including gauge boson widths and non-resonance contributions. We employed a maximum likelihood analysis of a five dimensional differential cross section of angular distributions. This approach appears to offer an optimal strategy for measurement of TGV's. LEP200 will improve existing measurements of TGV's but not enough to see loop contributions of new physics. Measurements at the NLC will be roughly 2 orders of magnitude more precise which would probe the effects of new physics at the loop level.

hep-ph↗