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We study the dependence of the Higgs boson mass on the supersymmetry breaking scale in the minimal supersymmetric extension of the standard Weinberg-Salam model. In particular, we find that for supersymmetry breaking scale $10^8$ GeV $\leq…

High Energy Physics - Phenomenology · Physics 2007-05-23 N. V. Krasnikov , G. Kreyerhoff , R. Rodenberg

Older lattice work exploring the Higgs mass triviality bound is briefly reviewed. It indicates that a strongly interacting scalar sector in the minimal standard model cannot exist; on the other hand low energy QCD phenomenology might be…

High Energy Physics - Lattice · Physics 2009-10-22 H. Neuberger , U. M. Heller , M. Klomfass , P. Vranas

We study the renormalization group evolution of the Higgs quartic coupling $\lambda_{H}$ and the Higgs mass $m_{H}$ in the Standard Model. The one loop equation for $\lambda_{H}$ is non linear and it is of the Riccati type which we…

High Energy Physics - Phenomenology · Physics 2008-11-26 P. Kielanowski , S. R. Juarez W

The mechanism of radiative electroweak symmetry breaking occurs through loop corrections, and unlike conventional symmetry breaking where the Higgs mass is a parameter, the radiatively-generated Higgs mass is dynamically predicted. Pade…

High Energy Physics - Phenomenology · Physics 2013-08-22 T. G. Steele , Zhi-Wei Wang

We update instability and metastability bounds of the Standard Model electroweak vacuum in view of the recent ATLAS and CMS Higgs results. For a Higgs mass in the range 124--126 GeV, and for the current central values of the top mass and…

High Energy Physics - Phenomenology · Physics 2015-06-03 Joan Elias-Miro , Jose R. Espinosa , Gian F. Giudice , Gino Isidori , Antonio Riotto , Alessandro Strumia

Using published Higgs search data we investigate whether any evidence supports the possibility that the Higgs may be mixed with other neutral scalars. We combine the positive evidence for the Higgs at 125.5 GeV with search constraints at…

High Energy Physics - Phenomenology · Physics 2015-06-05 Daniele Bertolini , Matthew McCullough

The predicted value of the higgs mass $m_H$ is analyzed assuming the existence of the fourth generation of leptons ($N, E$) and quarks ($U, D$). The steep and flat directions are found in the five-dimensional parameter space: $m_H$, $m_U$,…

High Energy Physics - Phenomenology · Physics 2011-01-25 V. A. Novikov , L. B. Okun , A. N. Rozanov , M. I. Vysotsky

We show that the description of the electroweak interactions based on noncommutative geometry of a continuous and a discrete space gives no special relations between the Higgs mass and other parameters of the model. We prove that there…

High Energy Physics - Theory · Physics 2009-10-22 Andrzej Sitarz

In supersymmetric models with minimal particle content and without large left-right squarks mixing, the conventional knowledge is that the Higgs Boson mass around 125 GeV leads to top squark masses ${\cal O}(10)$ TeV, far beyond the reach…

High Energy Physics - Phenomenology · Physics 2016-10-24 Abhijit Samanta , Sujoy Kumar Mandal , Himadri Manna

The measured (central) values of the Higgs and top quark masses indicate that the Standard Model (SM) effective potential develops an instability at high field values. The scale of this instability, determined as the Higgs field value at…

High Energy Physics - Phenomenology · Physics 2017-03-15 Jose R. Espinosa , Mathias Garny , Thomas Konstandin , Antonio Riotto

In this letter we study the Higgs mass in the NMSSM with supersymmetry breaking at high scales $M_{SS}$. With the Standard Model as the effective low energy theory, the computation of the Higgs mass relies on the matching condition of the…

High Energy Physics - Phenomenology · Physics 2016-08-24 Lucila Zarate

Even if the unification and supersymmetry breaking scales are around $10^6$ to $10^{9}$ TeV, a large $A_t$ coupling may be entirely generated at low energies through RGE evolution in the 5D MSSM. Independent of the precise details of…

High Energy Physics - Phenomenology · Physics 2014-08-26 Ammar Abdalgabar , Alan S. Cornell , Aldo Deandrea , Moritz McGarrie

Assuming that the Standard Model arises from the $E_8\times E_8$ Heterotic Superstring, we try to solve the discrepancy between the unification scale predicted by this theory ($\approx g_{GUT}\times 5.27\cdot 10^{17}$ GeV) and the value…

High Energy Physics - Phenomenology · Physics 2017-08-23 C. Munoz

The radiatively generated Higgs mass is obtained by requiring that leading "divergences" are cancelled in both 2D and 4D. This predicts one or more viable modes; the k=1 mode mass is m_H\cong2/3 m_t\cong115GeV whereas the k=2 mode is…

High Energy Physics - Phenomenology · Physics 2015-05-27 Marko B. Popovic

If the Higgs boson has a mass below 130 GeV, then the standard model vacuum is unstable; if it has a mass below 90 GeV (i.e. within reach of LEP within the next two years), then the instability will occur at a scale between 800 GeV and 10…

High Energy Physics - Phenomenology · Physics 2015-06-25 P. Q. Hung , Marc Sher

We discuss the physical implications of formulating the Standard Model (SM) in terms of the superconnection formalism involving the superalgebra su(2/1). In particular, we discuss the prediction of the Higgs mass according to the formalism…

High Energy Physics - Phenomenology · Physics 2015-03-11 Ufuk Aydemir , Djordje Minic , Chen Sun , Tatsu Takeuchi

The lack of evidence for low energy supersymmetry at the LHC implies a supersymmetry scale in excess a TeV. While this is consistent (and even helpful) with a Higgs boson mass at $\approx$ 125 GeV, simple supersymmetric models with scalar…

High Energy Physics - Phenomenology · Physics 2016-04-26 Keith A. Olive

Recent LHC results suggest a standard model (SM)-like Higgs boson in the vicinity of 125 GeV with no clear indications yet of physics beyond the SM. At the same time, the SM is incomplete, since additional dynamics are required to…

High Energy Physics - Phenomenology · Physics 2015-06-04 Clifford Cheung , Michele Papucci , Kathryn M. Zurek

Imposing the constraint that the Standard Model effective Higgs potential should have two degenerate minima ( vacua), one of which should be - order of magnitudewise - at the Planck scale, leads to the top mass being 173 +/- 5 GeV and the…

High Energy Physics - Phenomenology · Physics 2009-10-28 C. D. Froggatt , H. B. Nielsen

Depending on the value of the Higgs mass, the Standard Model acquires an unstable region at large Higgs field values due to RG running of couplings, which we evaluate at 2-loop order. For currently favored values of the Higgs mass, this…

High Energy Physics - Phenomenology · Physics 2017-08-15 Mark P. Hertzberg