Measurement of the Higgs boson mass in the H → ZZ⁎ → 4ℓ and H → γγ channels with <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:msqrt><mml:mrow><mml:mi>s</mml:mi></mml:mrow></mml:msqrt><mml:mo>=</mml:mo><mml:mn>13</mml:mn></mml:math> TeV pp collisions using the ATLAS detector

The B − L MSSM is the MSSM with three right-handed neutrino chiral multiplets and gauged B − L symmetry. The B − L symmetry is broken by the third family right-handed sneutrino acquiring a VEV, thus spontaneously breaking R-parity. Within a natural range of soft supersymmetry breaking parameters, it is shown that a large and uncorrelated number of initial values satisfy all present phenomenological constraints; including the correct masses for the W ± , Z 0 bosons, having all sparticles exceeding their present lower bounds and giving the experimentally measured value for the Higgs boson. For this "valid" set of initial values, there are a number of different LSPs, each occurring a calculable number of times. We plot this statistically and determine that among the most prevalent LSPs are chargino and neutralino mass eigenstates. In this paper, the R-parity violating decay channels of charginos and neutralinos to standard model particles are determined, and the interaction vertices and decay rates computed analytically. These results are valid for any chargino and neutralino, regardless of whether or not they are the LSP. For chargino and neutralino LSPs, we will-in a subsequent series of papers -present a numerical study of their RPV decays evaluated statistically over the range of associated valid initial points. B Mass Matrix elements 54 B.1 Chargino mass matrix 54 B.2 Neutralino mass matrix 55 -1 --4 -In Section 2, we give a brief summary of the B − L MSSM. In particular, the spontaneous breaking of gauged U (1) B−L symmetry by a non-vanishing VEV of the third family right-handed sneutrino is discussed. The associated R-parity violating interactions induced in the Lagrangian are presented in detail. The VEV of the right-handed sneutrino produces a mixing of the third family right-hand neutrino and the three left-handed neutrinos with all fermionic superpartners of the neutral gauge bosons and the up and down neutral Higgsinos. This is presented in Section 3. The general form of this 9 × 9 mass matrix is given, as well as the explicit form of the unitary matrix required to diagonalize it. However, in that section, we focus on the diagonal 3 × 3 left-handed neutrino Majorana submatix m D ν only. The mass eigenvalues of this matrix can be determined from the explicit form of the PMNS mixing matrix as well as the off-diagonal lefthanded neutrino matrix m ν . This latter matrix is a function of the R-parity violating parameters as well as three additional quantities. The result is compared with the experimentally determined mass eigenvalues of both the "normal" and the "inverted" neutrino mass hierarchies. In Section 4, we list all of the presently known experimental data that must be satisfied in any phenomenologically acceptable vacuum. These include the masses of the W ± ,Z 0 electroweak vector bosons, the Higgs mass, the present lower bounds on the SUSY sparticles and so on. Having done this, we present the mass interval in which we will statistically throw all dimensionful parameters of the soft SUSY breaking t...

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“…Finally, the Higgs mass must be within the 3σ allowed range from ATLAS combined run 1 and run 2 results [73]. This is found to be…”

Section: Neutrino Masses and The Rpv Parametersmentioning

confidence: 89%

The R-parity violating decays of charginos and neutralinos in the B-L MSSM

Dumitru

Ovrut

Purves

2019

J. High Energ. Phys.

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“…(2.4) Furthermore, the predicted supersymmetric particles masses must satisfy their current measured lower bounds, given in Table 1. Finally, the Higgs mass must be within the 3σ allowed range from ATLAS combined run 1 and run 2 results [54]. This is found to be…”

Section: Physically Acceptable Vacuamentioning

confidence: 89%

R-parity violating decays of Bino neutralino LSPs at the LHC

Dumitru

Herwig

Ovrut

2019

J. High Energ. Phys.

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The R-parity violating decays of Bino neutralino LSPs are analyzed within the context of the B − L MSSM "heterotic standard model". These LSPs correspond to statistically determined initial soft supersymmetry breaking parameters which, when evolved using the renormalization group equations, lead to an effective theory satisfying all phenomenological requirements; including the observed electroweak vector boson masses and the Higgs mass. The explicit RPV decay channels of these LSPs into standard model particles, the analytic and numerical decay rates and the associated branching ratios are presented. The analysis of these quantities breaks into two separate calculations; first, for Bino neutralino LSPs with mass larger than M W ± and, second, when the Bino neutralino mass is smaller than the electroweak scale. The RPV decay processes in both of these regions is analyzed in detail. The decay lengths of these RPV interactions are discussed. It is shown that for heavy Bino neutralino LSPs the vast majority of these decays are "prompt", although a small, but calculable, number correspond to "displaced" decays of various lengths. The situation is reversed for light Bino LSPs, only a small number of which can RPV decay promptly. The relation of these results to the neutrino hierarchy-either normal or inverted-is discussed in detail.

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“…We show that the dispersion relation of the Higgs boson is modified through the Coriolis force. If the angular frequency is smaller than the Higgs mass, Lorentz violation is tiny and the Higgs dispersion relation (19) is given by…”

Section: Conclusion and Discussionmentioning

confidence: 99%

“…A produced Higgs boson decays into two neutral gauge bosons, Z and Z * , and then into 4 leptons. The recent data from ATLAS experiment [19] shows that the mass of the Higgs boson is determined as 124.79 ± 0.37 GeV from the 4 lepton decay channel. Since the Higgs boson momenta p vary event by event, the Lorentz-violating effect 4ω 2 0 p 2 /M 2 H also varies and it is misinterpreted as the statistical error for the Higgs boson mass.…”

Section: Conclusion and Discussionmentioning

confidence: 99%

A possibility of Lorentz violation in the Higgs sector

Iso

Kitazawa

2019

Mod. Phys. Lett. A

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In string theory, a scalar field often appears as a moduli of a geometrical configuration of D-branes in higher dimensional space. In the low energy effective theory on D-branes, the distance between D-branes is translated into the energy scale of the gauge symmetry breaking. In this paper, we study a phenomenological consequence of a possibility that the Higgs field is such a moduli field and the D-brane configuration is stabilized by a stationary motion, in particular, revolution of D-branes on which we live. Then, due to the Coriolis force, Higgs mode is mixed with the angular fluctuation of branes and the Lorentz symmetry is violated in the dispersion relation of the Higgs boson. The Higgs boson mass measurements at LHC experiments give an upper bound ∼ O(0.1) GeV for the angular frequency of the revolution of D-branes.

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Measurement of the Higgs boson mass in the H → ZZ⁎ → 4ℓ and H → γγ channels with s=13 TeV pp collisions using the ATLAS detector

Cited by 106 publications

References 39 publications

The R-parity violating decays of charginos and neutralinos in the B-L MSSM

The R-parity violating decays of charginos and neutralinos in the B-L MSSM

R-parity violating decays of Bino neutralino LSPs at the LHC

A possibility of Lorentz violation in the Higgs sector

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Measurement of the Higgs boson mass in the H → ZZ⁎ → 4ℓ and H → γγ channels with s=13 TeV pp collisions using the ATLAS detector

Cited by 106 publications

References 39 publications

The R-parity violating decays of charginos and neutralinos in the B-L MSSM

The R-parity violating decays of charginos and neutralinos in the B-L MSSM

R-parity violating decays of Bino neutralino LSPs at the LHC

A possibility of Lorentz violation in the Higgs sector

Contact Info

Product

Resources

About

Measurement of the Higgs boson mass in the H → ZZ⁎ → 4ℓ and H → γγ channels with s=13 TeV pp collisions using the ATLAS detector