English
Related papers

Related papers: Drell-Yan production at the LHC in a four site Hig…

200 papers

We consider the four-site Higgsless model, which predicts the existence of four charged and two neutral extra gauge bosons, $W_{1,2}^\pm$ and $Z_{1,2}$. In contrast to other Higgsless models, characterized by fermiophobic extra gauge…

High Energy Physics - Phenomenology · Physics 2010-11-11 E. Accomando , S. De Curtis , D. Dominici , L. Fedeli

We study the phenomenological consequences of a four site Higgsless model based on the SU(2)_L x SU(2)_1 x SU(2)_2 x U(1)_Y gauge symmetry, which predicts two neutral and four charged extra gauge bosons, Z_{1,2} and W_{1,2}. The model…

High Energy Physics - Phenomenology · Physics 2010-02-12 Stefania De Curtis

We study the phenomenology of the neutral gauge sector of the four-site Higgsless model, based on the SU(2)_L x SU(2)_1 x SU(2)_2 x U(1)_Y gauge symmetry, at present colliders. The model predicts the existence of two neutral and four…

High Energy Physics - Phenomenology · Physics 2011-02-25 Elena Accomando , Stefania De Curtis , Daniele Dominici , Luca Fedeli

In the Higgsless models, there are extra gauge bosons which keep the perturbative unitarity of a longitudinally polarized gauge boson. The three-site Higgsless model is a minimal Higgsless model and contains three extra gauge bosons,…

High Energy Physics - Phenomenology · Physics 2013-05-29 Tomohiro Abe , Tatsuya Masubuchi , Shoji Asai , Junichi Tanaka

We present a new complete analysis of the electroweak precision observables within the recently proposed 4-site Higgsless model, which is based on the SU(2)_L x SU(2)_1 x SU(2)_2 x U(1)_Y gauge symmetry and predicts six extra gauge bosons,…

High Energy Physics - Phenomenology · Physics 2015-03-19 Elena Accomando , Diego Becciolini , Stefania De Curtis , Daniele Dominici , Luca Fedeli

We study the phenomenology of the 4-site Higgsless model, based on the $SU(2)_L\times SU(2)_1\times SU(2)_2\times U(1)_Y$ gauge symmetry, at present colliders. The model predicts the existence of two neutral and four charged extra gauge…

High Energy Physics - Phenomenology · Physics 2013-05-29 Elena Accomando , Diego Becciolini , Stefania De Curtis , Daniele Dominici , Luca Fedeli

We study the properties of potential new Z' gauge bosons produced through the Drell-Yan mechanism at the LHC. Our analysis is performed using a fully differential next-to-leading order QCD calculation with spin correlations, interference…

High Energy Physics - Phenomenology · Physics 2008-11-26 Frank Petriello , Seth Quackenbush

In extensions of the Standard Model with compactified extra dimensions, perturbative unitarity of the longitudinal gauge bosons is maintained through the contribution of heavy KK excitations of the gauge fields, without the necessity of…

High Energy Physics - Phenomenology · Physics 2012-01-10 Fabian Bach , Thorsten Ohl

We study the phenomenology of both the Neutral Current (NC) and Charged Current (CC) Drell-Yan (DY) processes at the Large Hadron Collider (LHC) within a 4 Dimensional realization of a Composite Higgs model with partial compositness by…

High Energy Physics - Phenomenology · Physics 2017-05-11 D. Barducci , A. Belyaev , S. De Curtis , S. Moretti , G. M. Pruna

We study the Drell-Yan production of heavy vector and axial-vector states of generic Higgsless models at hadron colliders. We analyse in particular the l+l-, WZ, and three SM gauge boson final states. In the l+l- case we show how present…

High Energy Physics - Phenomenology · Physics 2009-09-28 Oscar Cata , Gino Isidori , Jernej F. Kamenik

We study the phenomenology of Drell-Yan processes at the Large Hadron Collider for the case of both the neutral and charged current channels within a recently proposed 4-Dimensional formulation of the Minimal Composite Higgs Model. We…

High Energy Physics - Phenomenology · Physics 2013-05-30 Daniele Barducci , Alexander Belyaev , Stefania De Curtis , Stefano Moretti , Giovanni Marco Pruna

We study the phenomenology of heavy gauge bosons at the LHC in a nonuniversal gauge interaction model with the separate electroweak SU(2) gauge group for the third generation. Considered are the Drell-Yan processes into the final states of…

High Energy Physics - Phenomenology · Physics 2016-12-14 Yeong Gyun Kim , Kang Young Lee

Recently a gauged two Higgs doublet model, in which the two Higgs doublets are embedded into the fundamental representation of an extra local $SU(2)_H$ group, is constructed. Both the new gauge bosons $Z^\prime$ and $W^{\prime (p,m)}$ are…

High Energy Physics - Phenomenology · Physics 2018-08-15 Wei-Chih Huang , Hiroyuki Ishida , Chih-Ting Lu , Yue-Lin Sming Tsai , Tzu-Chiang Yuan

We examine direct limits on masses of the extra neutral gauge bosons in the SU(4)_L \times U(1)_X model with a little Higgs mechanism confronted with the LHC data, especially by embedding anomaly-free set of fermions. There exist two extra…

High Energy Physics - Phenomenology · Physics 2015-08-18 Kang Young Lee , Soo-hyeon Nam

The Drell-Yan di-lepton production at hadron colliders is by far the preferred channel to search for new heavy spin-1 particles. Traditionally, such searches have exploited the Narrow Width Approximation (NWA) for the signal, thereby…

High Energy Physics - Phenomenology · Physics 2016-08-24 Elena Accomando , Daniele Barducci , Stefania De Curtis , Juri Fiaschi , Stefano Moretti , Claire H. Shepherd-Themistocleous

We investigate the scope of the LHC in probing the parameter space of a 4-site model supplemented by one composite Higgs state, assuming all past, current and future energy and luminosity stages of the CERN machine. We concentrate on the…

High Energy Physics - Phenomenology · Physics 2015-06-11 E. Accomando , L. Fedeli , S. Moretti , S. De Curtis , D. Dominici

In a truly model-independent approach, we reexamine a minimal extension of the Standard Model (SM) through the introduction of an additional $U(1)$ symmetry leading to a new neutral gauge boson ($Z'$), allowing its kinetic mixing with the…

High Energy Physics - Phenomenology · Physics 2018-08-22 Triparno Bandyopadhyay , Gautam Bhattacharyya , Dipankar Das , Amitava Raychaudhuri

We study the Drell-Yan process mediated by a new bosonic resonance at the LHC. The bosons of spin-0, 1, and 2 with the most general leading-order couplings to Standard Model fermions and gluons are considered, which provide a…

High Energy Physics - Phenomenology · Physics 2013-05-30 Cheng-Wei Chiang , Neil D. Christensen , Gui-Jun Ding , Tao Han

We investigate the implications of a minimal $SU(2)$ gauge symmetry extension of the standard model at the LHC. To achieve the spontaneous symmetry breaking, a heavy Higgs doublet of the $SU(2)$ is introduced. To obtain an anomaly free…

High Energy Physics - Phenomenology · Physics 2017-01-25 Chuan-Hung Chen , Takaaki Nomura

We study the production of the heavy W' and Z' bosons in the three site higgsless model at the LHC. We focus on the s-channel production mode to estimate the prospects for measuring their suppressed couplings to standard model fermions.

High Energy Physics - Phenomenology · Physics 2009-02-23 Thorsten Ohl , Christian Speckner
‹ Prev 1 2 3 10 Next ›