Monopole configuration in Weinberg-Salam model

Cho, Y.M.; Maison, Dieter

doi:10.1016/s0370-2693(96)01492-x

Cited by 169 publications

(306 citation statements)

References 18 publications

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“…More recently, it has been proposed [5] that solutions yielding MMs could arise within the electroweak theory itself. This Cho-Maison, or electroweak MM, would be expected to have a mass of the order of several TeV.…”

Section: Jhep07(2017)054mentioning

confidence: 99%

Search for relativistic magnetic monopoles with five years of the ANTARES detector data

Albert

André

Anghinolfi

et al. 2017

J. High Energ. Phys.

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A search for magnetic monopoles using five years of data recorded with the ANTARES neutrino telescope from January 2008 to December 2012 with a total live time of 1121 days is presented. The analysis is carried out in the range β > 0.6 of magnetic monopole velocities using a strategy based on run-by-run Monte Carlo simulations. No signal above the background expectation from atmospheric muons and atmospheric neutrinos is observed, and upper limits are set on the magnetic monopole flux ranging from 5.7 × 10 −16 to 1.5 × 10 −18 cm −2 · s −1 · sr −1 .

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Section: Jhep07(2017)054mentioning

confidence: 99%

Search for relativistic magnetic monopoles with five years of the ANTARES detector data

Albert

André

Anghinolfi

et al. 2017

J. High Energ. Phys.

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“…Obviously the existence of the monopole solution assures that the standard model has the monopole [5,6,20]. If so, the remaining question is if this monopole is optional or not.…”

Section: Electroweak Monopole: a Reviewmentioning

confidence: 99%

“…After the Dirac monopole we have had the Wu-Yang monopole [2], the 't Hooft-Polyakov monopole [3], the grand unification (Dokos-Tomaras) monopole [4], and the electroweak (Cho-Maison) monopole [5,6]. But only the electroweak monopole become realistic enough to be discovered.…”

Section: Introductionmentioning

confidence: 99%

Cosmological Implications of Electroweak Monopole

Cho

2018

EPJ Web Conf.

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In this talk we review the basic features of the electroweak monopole, and estimate the remnant electroweak monopole density of the standard model in the present universe. We show that, although the electroweak phase transition is of the first order, the monopole production comes from the thermal fluctuations of the Higgs field after the phase transition, not the vacuum bubble collisions during the phase transition. Moreover, most of the monopoles produced initially are annihilated as soon as created, and this annihilation continues very long time, longer than the muon pair annihilation time. As the result the remnant monopole density at present universe becomes very small, of 10 −11 of the critical density, too small to be the dark matter. We discuss the physical implications of our results on the ongoing monopole detection experiments.PACS numbers: 14.80. Hv, Keywords: electroweak monopole, mass of electroweak monopole, cosmological production of electroweak monopole, remnant density of electroweak monopole, seed of large scale structure.

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“…'t Hooft and Polyakov, in 1974, independently demonstrated that a Grand Unified Theory (GUT) scheme possesses a monopole solution when a U(1) subgroup of electromagnetism that is embedded into a larger gauge group is spontaneously broken by the Higgs mechanism [2,3]. Monopole solutions have been proposed to arise within the electroweak theory itself [4], which relies on spontaneous gauge symmetry breaking. The Cho-Maison electroweak monopole would have a mass of the order of several TeV [5,6] and is possibly within the range of the Large Hadron Collider (LHC).…”

Section: Introductionmentioning

confidence: 99%

“…The minimum value of the quantisation number n varies between different theories. According to Dirac, n = 1, 2, 3.., while according to Schwinger, as well as, Cho and Maison, n = 2, 4, 6.. [4,7], and n = 3, 6, 9.. or n = 6, 12, 18.. if one considers the elementary charge to be carried by the down quark. As a result of the high value of the Dirac magnetic charge, a high velocity monopole is expected to suffer energy losses in matter over ≈4700 times higher than a muon [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Magnetic monopole search with the MoEDAL test trapping detector

Katre

2016

EPJ Web Conf.

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Abstract. MoEDAL is designed to search for monopoles produced in high-energy Large Hadron Collider (LHC) collisions, based on two complementary techniques: nucleartrack detectors for high-ionisation signatures and other highly ionising avatars of new physics, and trapping volumes for direct magnetic charge measurements with a superconducting magnetometer. The MoEDAL test trapping detector array deployed in 2012, consisting of over 600 aluminium samples, was analysed and found to be consistent with zero trapped magnetic charge. Stopping acceptances are obtained from a simulation of monopole propagation in matter for a range of charges and masses, allowing to set modelindependent and model-dependent limits on monopole production cross sections. Multiples of the fundamental Dirac magnetic charge are probed for the first time at the LHC. IntroductionMagnetic monopoles were first postulated by Dirac in 1931, who showed that with their existence, electric charge quantisation could be explained as a natural consequence of angular momentum quantisation [1]. Their introduction would also add symmetry to Maxwell's equations of electromagnetism. 't Hooft and Polyakov, in 1974, independently demonstrated that a Grand Unified Theory (GUT) scheme possesses a monopole solution when a U(1) subgroup of electromagnetism that is embedded into a larger gauge group is spontaneously broken by the Higgs mechanism [2,3]. Monopole solutions have been proposed to arise within the electroweak theory itself [4], which relies on spontaneous gauge symmetry breaking. The Cho-Maison electroweak monopole would have a mass of the order of several TeV [5,6] and is possibly within the range of the Large Hadron Collider (LHC). With the abundance of monopole theories and no definite estimate on its mass, the search for free magnetic charges in nature is compelling.Dirac proposed that the monopoles should carry a magnetic charge g equal to the multiple of a fundamental unit of magnetic charge referred to as the Dirac charge g D : g = n.g D , where g D is equivalent to 68.5 times the charge of an electron. The minimum value of the quantisation number n varies between different theories. According to Dirac, n = 1, 2, 3.., while according to Schwinger, as well as, Cho and Maison, n = 2, 4, 6.. [4,7], and n = 3, 6, 9.. or n = 6, 12, 18.. if one considers the elementary charge to be carried by the down quark. As a result of the high value of the Dirac magnetic charge, a high velocity monopole is expected to suffer energy losses in matter over ≈4700 times higher than a muon [8][9][10]. Thus, in general monopoles in nature will manifest themselves as a

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Monopole configuration in Weinberg-Salam model

Cited by 169 publications

References 18 publications

Search for relativistic magnetic monopoles with five years of the ANTARES detector data

Search for relativistic magnetic monopoles with five years of the ANTARES detector data

Cosmological Implications of Electroweak Monopole

Magnetic monopole search with the MoEDAL test trapping detector

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