Decays of a Leptophobic Gauge Boson ∗ Howard
نویسنده
چکیده
We discuss the theory and phenomenology of decays of a leptophobic U(1) X gauge boson X, such as has been proposed to explain the alleged deviations of Rb and Rc from standard model predictions. If the scalars involved in the breaking of the SU(2)×U(1) symmetry are sufficiently light, X will sometimes decay into a charged (or neutral) scalar along with an oppositely-charged W (or Z). These decay modes could yield clean signals for the leptophobic gauge bosons at hadron colliders and provide an interesting window into the Higgs sector of the theory. ∗Research supported in part by the National Science Foundation under Grant #PHY-9218167.
منابع مشابه
Decays of a leptophobic gauge boson
We discuss the theory and phenomenology of decays of a leptophobic U(1) X gauge boson X, such as has been proposed to explain the alleged deviations of Rb and Rc from standard model predictions. If the scalars involved in the breaking of the SU(2)×U(1) symmetry are sufficiently light, X will sometimes decay into a charged (or neutral) scalar along with an oppositely-charged W (or Z). These deca...
متن کاملar X iv : h ep - p h / 04 02 15 6 v 1 14 F eb 2 00 4 Two - body Z ′ decays in the minimal 331 model
The two-body decays of the extra neutral boson Z2 predicted by the minimal 331 model are analyzed. At the three-level it can decay into standard model particles as well as exotic quarks and the new gauge bosons predicted by the model. The decays into a lepton pair are strongly suppressed, with Br(Z2 → l+l−) ≈ 10−2 and Br(Z2 → ν̄lν) ≈ 10−3. In the bosonic sector, Z2 would decay mainly into a pair...
متن کاملتولید کوارک تاپ منفرد به عنوان قیدی برای بوزونW
The existence of a new massive charged gauge boson, known as W’, is proposed by many new physics scenarios. When W’ decays to tb, the final state is very similar to the final state of the s-channel single top production, where W boson is the off-shell mediator to produce the top and bottom quarks. If W’ exists, it can affect the cross section of the SM s-channel single top production, so measur...
متن کاملFrom Superstring Derived Models
It was recently suggested that the reported anomalies in Rb and Rc can be interpreted as the effect of a heavy vector boson that couples to quarks and is universally decoupled from leptons. We examine how an extra gauge boson with this property can arise from superstring derived models. In a specific three generation model we show that the U(1)B−L symmetry combines with the horizontal flavor sy...
متن کاملLeptophobic 2’ from superstring derived models
It was recently suggested that the reported anomalies in Rb and R, can be interpreted as the effect of a heavy vector boson that couples to quarks and is universally decoupled from leptons. We examine how an extra gauge boson with this property can arise from supersting derived models. In a specific three generation model we show that the U( ~)B__L symmetry combines with the horizontal flavor s...
متن کامل