A new possibility for light-quark dark matter

Bashkanov, M.; Watts, D. P.

doi:10.1088/1361-6471/ab67e8

Cited by 19 publications

(27 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Note that baryonic particles-He 3 pairs and proton-antiproton pairs-consist of quarks that interact with each other in a complicated way. There is reason to believe that these complex interactions give rise to a new state of quarks, called hexaquarks [107,108]. For this reason, the cold neutron interference experiment, due to its high sensitivity, can shed light on such a quark conglomerate.…”

Section: Discussionmentioning

confidence: 99%

“…According to forecasts, such a formation of dibaryons can be stable quite. Hexaquarks d*(2380) consisting of six light quarks; 3u-quarks and 3d-quarks [108] can form a substance known as Bose-Einstein condensate (BEC) due to the prevailing low temperatures in the Universe. Under some conditions, BEC containing hexaquarks with the captured electrons and positrons can behave as dark matter.…”

Section: String Topological Models Of Quarksmentioning

confidence: 99%

See 1 more Smart Citation

Quaternion Algebra on 4D Superfluid Quantum Space-Time: Can Dark Matter Be a Manifestation of the Superfluid Ether?

Sbitnev

2021

Universe

View full text Add to dashboard Cite

Quaternions are a natural framework of 4D space-time, where the unit element relates to time, and three others relate to 3D space. We define a quaternion set of differential torsion operators (shifts with rotations) that act to the energy-momentum tensor written on the same quaternion basis. It results in the equations of gravity-torsion (gravitomagnetic) fields that are similar to Maxwell’s equations. These equations are parent equations, generating the following equations: (a) equations of the transverse gravity-torsion waves; (b) the vorticity equation describing vortices orbital speed of which grows monotonically in the vortex core but far from it, it goes to a permanent level; (c) the modified Navier–Stokes equation leading to the Schrödinger equation in the nonrelativistic limit and to the Dirac equation in the relativistic limit. The Ginsburg–Landau theory of superfluidity resulting from the Schrödinger equation shows the emergence of coupled proton-antiproton pairs forming the Bose–Einstein condensate. In the final part of the article, we describe Samokhvalov’s experiment with rotating nonelectric, nonferromagnetic massive disks in a vacuum. It demonstrates an unknown force transferring the rotational moment from the driving disk to a driven one. It can be a manifestation of the dark matter. For studying this phenomenon, we propose a neutron interference experiment that is like the Aharonov–Bohm one.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: String Topological Models Of Quarksmentioning

confidence: 99%

Quaternion Algebra on 4D Superfluid Quantum Space-Time: Can Dark Matter Be a Manifestation of the Superfluid Ether?

Sbitnev

2021

Universe

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

“…Recently, a study has shown that a certain number of hexaquarks d * (2380) can be bounded together to form a stable BEC (hereafter called d * (2380)-BEC) (Bashkanov & Watts 2020). The d * (2380)-BECs can be thermally formed in the early universe (Bashkanov & Watts 2020). The hexaquark d * (2380) is formed by six quarks (3 u quarks and 3 d quarks) and its existence was confirmed in collider experiments in the past decade (Adlarson et al 2011(Adlarson et al , 2015Lü et al 2019).…”

Section: Introductionmentioning

confidence: 99%

The decaying and scattering properties of the $d^*$(2380) hexaquark Bose Einstein Condensate dark matter

Chan

2020

Preprint

View full text Add to dashboard Cite

Recently, a study has shown that the Bose Einstein Condensates formed by the d * (2380) hexaquarks (d * (2380)-BECs) can be thermally produced in the early universe and they are stable enough to be a competitive candidate of dark matter. Searching for the decaying signature of d * (2380)-BECs is a possible way to verify this dark matter model. In this article, we discuss the scattering and decaying properties of the d * (2380)-BECs and we show that the decay rate of the d * (2380)-BECs is correlated with the TeV cosmic-ray flux. The predicted average decay rate in our Galaxy is several orders of magnitude larger than the current observed upper limit. Therefore, it would be very difficult for us to search for the decaying signature of the d * (2380)-BEC dark matter model. Nevertheless, the size of the d * (2380)-BECs may be large enough to have self-interaction so that we can possibly detect them in the future.

show abstract

“…The electromagnetic properties of the d * (2380) were also investigated recently from measurements of its photoexcitation from deuteron targets [10][11][12], with further programmes planned [13]. The particle has also recently been shown to have potential impact in astrophysics [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic properties of the d*(2380) hexaquark

2019

Self Cite

View full text Add to dashboard Cite

Experiments with intense photon and electron beams have the potential to provide access to nontrivial properties of the recently discovered d * (2380) hexaquark including its size, structure, magnetic moment, quadrupole and octupole deformations. In this paper we investigate the sensitivity of ongoing and planned experiments to various properties of the d * (2380), employing models based on both constituent quark and pion cloud frameworks. Our calculations indicate that for photoinduced reactions on the deuteron the d * (2380) is predominantly produced from the D − wave component of the deuteron. We confirm earlier findings that the intrinsic quadrupole deformation of the d * (2380) should be small. We also demonstrate an ability to extract the d * (2380) magnetic moment and put constrains on the d * (2380) M 3/E2 ratio.

show abstract

A new possibility for light-quark dark matter

Cited by 19 publications

References 30 publications

Quaternion Algebra on 4D Superfluid Quantum Space-Time: Can Dark Matter Be a Manifestation of the Superfluid Ether?

Quaternion Algebra on 4D Superfluid Quantum Space-Time: Can Dark Matter Be a Manifestation of the Superfluid Ether?

The decaying and scattering properties of the $d^*$(2380) hexaquark Bose Einstein Condensate dark matter

Electromagnetic properties of the d*(2380) hexaquark

Contact Info

Product

Resources

About