Question What do we know about Higginson and Gauginos

[Harry Costas]

Lets go back 2019

[Submitted on 31 Dec 2018 (v1), last revised 18 Jun 2019 (this version, v2)]

Peccei-Quinn Symmetry and Nucleon Decay in Renormalizable SUSY SO(10)​

K.S. Babu, Takeshi Fukuyama, Saki Khan, Shaikh Saad

We suggest simple ways of implementing Peccei-Quinn (PQ) symmetry to solve the strong CP problem in renormalizable SUSY SO(10) models with a minimal Yukawa sector. Realistic fermion mass generation requires that a second pair of Higgs doublets survive down to the PQ scale. We show how unification of gauge couplings can be achieved in this context. Higgsino mediated proton decay rate is strongly suppressed by a factor of (MPQ/MGUT)2, which enables all SUSY particles to have masses of order TeV. With TeV scale SUSY spectrum, p→ν⎯⎯⎯K+ decay rate is expected to be in the observable range. Lepton flavor violating processes μ→eγ decay and μ−e conversion in nuclei, induced by the Dirac neutrino Yukawa couplings, are found to be within reach of forthcoming experiments.

 

[Harry Costas]

And what's a Wino and a Chargino.
Chiral Supersymmetry a property to be research in explaining Spin in condensates found in Cores of stars, Neutron Stars and Black Hole.

[Submitted on 10 Jan 2019 (v1), last revised 17 Jun 2019 (this version, v2)]

Discovery reach for wino and higgsino dark matter with a disappearing track signature at a 100 TeV pp collider​

Masahiko Saito, Ryu Sawada, Koji Terashi, Shoji Asai

Within the theory of supersymmetry, the lightest neutralino is a dark matter candidate and is often assumed to be the lightest supersymmetric particle (LSP) as well. If the neutral wino or higgsino is dark matter, the upper limit of the LSP mass is determined by the observed relic density of dark matter. If the LSP is a nearly-pure neutral state of the wino or higgsino, the lightest chargino state is expected to have a significant lifetime due to a tiny mass difference between the LSP and the chargino. This article presents discovery potential of the 100 TeV future circular hadron collider (FCC) for the wino and higgsino dark matter using a disappearing-track signature. The search strategy to extend the discovery reach to the thermal limits of wino/higgsino dark matter is discussed with detailed studies on the background rate and the reference design of the FCC-hadron detector under possible running scenarios of the FCC-hadron machine. A proposal of modifying the detector layout and several ideas to improve the sensitivity further are also discussed.

 

[Harry Costas]

Searching for the smallest particles in search of Dark Matter.

[Submitted on 17 Jan 2024 (v1), last revised 21 Apr 2024 (this version, v2)]

Dark Matter searches with photons at the LHC​

Subhojit Roy, Carlos E.M. Wagner

We unveil blind spot regions in dark matter (DM) direct detection (DMDD), for weakly interacting massive particles with a mass around a few hundred~GeV that may reveal interesting photon signals at the LHC. We explore a scenario where the DM primarily originates from the singlet sector within the Z3-symmetric Next-to-Minimal Supersymmetric Standard Model (NMSSM). A novel DMDD spin-independent blind spot condition is revealed for singlino-dominated DM, in cases where the mass parameters of the higgsino and the singlino-dominated lightest supersymmetric particle (LSP) exhibit opposite relative signs (i.e., κ<0), emphasizing the role of nearby bino and higgsino-like states in tempering the singlino-dominated LSP. Additionally, proximate bino and/or higgsino states can act as co-annihilation partner(s) for singlino-dominated DM, ensuring agreement with the observed relic abundance of DM. Remarkably, in scenarios involving singlino-higgsino co-annihilation, higgsino-like neutralinos can distinctly favor radiative decay modes into the singlino-dominated LSP and a photon, as opposed to decays into leptons/hadrons. In exploring this region of parameter space within the singlino-higgsino compressed scenario, we study the signal associated with at least one relatively soft photon alongside a lepton, accompanied by substantial missing transverse energy and a hard initial state radiation jet at the LHC. In the context of singlino-bino co-annihilation, the bino state, as the next-to-LSP, exhibits significant radiative decay into a soft photon and the LSP, enabling the possible exploration at the LHC through the triggering of this soft photon alongside large missing transverse energy and relatively hard leptons/jets resulting from the decay of heavier higgsino-like states.

 

[Harry Costas]

It's just amazing the research that is happening.

[For the first time since LEP, a range of mass splittings between the lightest charged and neutral Higgsinos from 0.3 GeV to 0.9 GeV is excluded at 95% confidence level, with a maximum reach of approximately 170 GeV in the Higgsino mass]

[Submitted on 25 Jan 2024 (v1), last revised 1 Jul 2024 (this version, v2)]

Search for Nearly Mass-Degenerate Higgsinos Using Low-Momentum Mildly Displaced Tracks in pp Collisions at s√ = 13 TeV with the ATLAS Detector​

ATLAS Collaboration

Higgsinos with masses near the electroweak scale can solve the hierarchy problem and provide a dark matter candidate, while detecting them at the LHC remains challenging if their mass splitting is (1GeV). This Letter presents a novel search for nearly mass-degenerate Higgsinos in events with an energetic jet, missing transverse momentum, and a low-momentum track with a significant transverse impact parameter using 140 fb−1 of proton-proton collision data at s√=13 TeV collected by the ATLAS experiment. For the first time since LEP, a range of mass splittings between the lightest charged and neutral Higgsinos from 0.3 GeV to 0.9 GeV is excluded at 95% confidence level, with a maximum reach of approximately 170 GeV in the Higgsino mass.

 

[Harry Costas]

Gaugino and more sub particles are observed.

[Submitted on 4 Aug 2024]

Decoding the gaugino code, naturally, at high-lumi LHC​

Howard Baer, Vernon Barger, Kairui Zhang

Natural supersymmetry with light higgsinos is most likely to emerge from the string landscape since the volume of scan parameter space shrinks to tiny volumes for electroweak unnatural models. Rather general arguments favor a landscape selection of soft SUSY breaking terms tilted to large values, but tempered by the atomic principle: that the derived value of the weak scale in each pocket universe lie not too far from its measured value in our universe. But that leaves (at least) three different paradigms for gaugino masses in natural SUSY models: unified (as in nonuniversal Higgs models), anomaly-mediation form (as in natural AMSB) and mirage mediation form (with comparable moduli- and anomaly-mediated contributions). We perform landscape scans for each of these, and show they populate different, but overlapping, positions in m(\ell\bar{\ell}) and m(wino) space. The first of these may be directly measurable at high-lumi LHC via the soft opposite-sign dilepton plus jets plus MET signature arising from higgsino pair production while the second of these could be extracted from direct wino pair production leading to same-sign diboson production.

 

[Harry Costas]

The Higgsino can naturally realize the "inelastic dark matter" scenario, where the scattering off a nucleus occurs between two nearly-degenerate states, making it invisible to WIMP direct detection experiments if the splitting is too large to be excited

[Submitted on 12 Sep 2024 (v1), last revised 30 Mar 2025 (this version, v2)]

Enhancing Direct Detection of Higgsino Dark Matter​

Peter W. Graham, Harikrishnan Ramani, Samuel S. Y. Wong

While much supersymmetric weakly interacting massive particle (WIMP) parameter space has been ruled out, one remaining important candidate is Higgsino dark matter. The Higgsino can naturally realize the "inelastic dark matter" scenario, where the scattering off a nucleus occurs between two nearly-degenerate states, making it invisible to WIMP direct detection experiments if the splitting is too large to be excited. It was realized that a "luminous dark matter" detection process, where the Higgsino upscatters in the Earth and subsequently decays into a photon in a large neutrino detector, offers the best sensitivity to such a scenario. We consider the possibility of adding a large volume of a heavy element, such as Pb or U, around the detector. We also consider the presence of U and Th in the Earth itself, and the effect of an enhanced high-velocity tail of the dark matter distribution due to the presence of the Large Magellanic Cloud. These effects can significantly improve the sensitivity of detectors such as JUNO, SNO+, KamLAND, and Borexino, potentially making it possible in the future to cover much of the remaining parameter space for this classic supersymmetric WIMP dark matter.

 

[Harry Costas]

[Submitted on 12 Dec 2024 (v1), last revised 23 Dec 2024 (this version, v2)]

The curtain lowers on directly detectable higgsino dark matter​

Stephen P. Martin

A higgsino could be some or all of the dark matter, with a mass bounded from above by about 1.1 TeV assuming a thermal freezeout density, and from below by collider searches. Direct detection experiments imply purity constraints on a dark matter higgsino, limiting the mixing with the electroweak gauginos. Using the new strong limits available as of the end of 2024 from the LUX-ZEPLIN experiment, I quantify the resulting lower bounds on gaugino masses and upper bounds on higgsino mass splittings, assuming that the scalar superpartners and Higgs bosons of minimal supersymmetry are in the decoupling limit. Similar bounds are projected for the critical future scenario that direct detection experiments reach the neutrino fog that hampers discovery prospects.

 

[jhixon]

The "Higgs" is a field and not a particle. It's job is the starter field for the electromagnetic force. When collisions occur, the loose uncontained quark energy "energizes the field" causing the Higgs to appear, create a spin and particles form matter. If the energies are positive or in a positive "field" like Earth, then only matter is created. If the energies are negative and have a positive "field" like Earth, then matter is only created or shown. If the loose or uncontained quark energy is negative, and the "field is negative" then you will see antimatter and antigravity. This has not been proven, but this is correct. Prove me wrong by weighing a neutrino with the scale upside down, inverse functions have the reverse affect to gravity so weighing it with the scale upside down will show the mass, and it's not zero.

 

[Harry Costas]

Hello jhixon
I like your thinking.

I'm interested to know what else you know.

 

[Harry Costas]

This is interesting when we look at Chiral Supersymmetry Dipolar Electromagnetic vector fields, as we observe these in action.

[Submitted on 26 Jan 2024 (v1), last revised 14 Jun 2024 (this version, v2)]

Search for pair production of higgsinos in events with two Higgs bosons and missing transverse momentum in collisions at the ATLAS experiment​

ATLAS Collaboration

Search for pair production of higgsinos in events with two Higgs bosons and missing transverse momentum in $\sqrt{s}=13$ TeV $pp$ collisions at the ATLAS experiment

This paper presents a search for pair production of higgsinos, the supersymmetric partners of the Higgs bosons, in scenarios with gauge-mediated supersymmetry breaking. Each higgsino is assumed to decay into a Higgs boson and a nearly massless gravitino. The search targets events where each...

arxiv.org

 

[Harry Costas]

Dirac would come out of his grave, knowing the research into this field.

[Submitted on 2 Feb 2024 (v1), last revised 7 Jun 2024 (this version, v2)]

Combined search for electroweak production of winos, binos, higgsinos, and sleptons in proton-proton collisions at​

CMS Collaboration

A combination of the results of several searches for the electroweak production of the supersymmetric partners of standard model bosons, and of charged leptons, is presented. All searches use proton-proton collision data at

= 13 TeV recorded with the CMS detector at the LHC in 2016-2018. The analyzed data correspond to an integrated luminosity of up to 137 fb

. The results are interpreted in terms of simplified models of supersymmetry. Two new interpretations are added with this combination: a model spectrum with the bino as the lightest supersymmetric particle together with mass-degenerate higgsinos decaying to the bino and a standard model boson, and the compressed-spectrum region of a previously studied model of slepton pair production. Improved analysis techniques are employed to optimize sensitivity for the compressed spectra in the wino and slepton pair production models. The results are consistent with expectations from the standard model. The combination provides a more comprehensive coverage of the model parameter space than the individual searches, extending the exclusion by up to 125 GeV, and also targets some of the intermediate gaps in the mass coverage.

 

[George²]

And what's a Wino and a Chargino.
Chiral Supersymmetry a property to be research in explaining Spin in condensates found in Cores of stars, Neutron Stars and Black Hole.

Nothing is research and explained because we cannot even look into ordinary stars to check for the presence of the discrete part that we can call a "core." We are even less able to study neutron stars in depth, and the interior of black holes will probably remain Terra incognita forever.

 

[Harry Costas]

I would advise researching more to understand Transient Condensates.
Yes, we cannot observe the core of Stars, Neutron Stars and Black Hole.
But!
Research scientists are trying to work out the probable properties.

 

[George²]

I'll be really excited to read description of core of black hole.

 

[Harry Costas]

A Classical Black Hole with a singularity cannot form.

We look at Transient Condensates under confinement.
Higgsino, Axion, Neutrino what whatever.

Condensates have a dipolar property, preventing a singularity.

Once the core is formed, the vector fields can attract all matter and EMR, mimicking the vector fields of a Black Hole.

The dipolar vector fields eject matter/energy . The size of these jets will be determined by the core properties.

M87 has dipolar jets over 100,000 Lt Yrs