Brane decay of a (4+n)-dimensional rotating black hole: spin-0 particles

Casals, Marc; Dolan, Sam R.; Kanti, Panagiota; Winstanley, Elizabeth

doi:10.1088/1126-6708/2005/09/049

Cited by 96 publications

(157 citation statements)

References 112 publications

Supporting

Mentioning

139

Contrasting

Order By: Relevance

“…The 'spin-down' phase of the evolution has received considerable attention recently [10,11,12,13,14,15]. A complete analysis of the 'spin-down' phase is lacking because the graviton emission has yet to be fully modelled (see [16] for work in this direction), leaving open the question of whether the idea that "black holes radiate mainly on the brane" [17] is valid for this phase of the evolution (see [8,12,18] for some papers discussing this issue).…”

Section: Introductionmentioning

confidence: 99%

Angular profile of emission of non-zero spin fields from a higher-dimensional black hole

Casals¹,

Dolan²,

Kanti³

et al. 2009

Physics Letters B

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Angular profile of emission of non-zero spin fields from a higher-dimensional black hole

Casals¹,

Dolan²,

Kanti³

et al. 2009

Physics Letters B

View full text Add to dashboard Cite

“…The aforementioned master equation has been successfully used to derive the Hawking radiation emission spectrum on the brane for scalar, fermion and gauge boson fields by a D−dimensional Schwarzschild black hole [5,6,7], and for scalar fields by a D−dimensional Schwarzschild-de Sitter black hole [14]. Recently, its complete form, that includes a non-vanishing black hole angular momentum, was used to study the emission of scalar fields on the brane by a D−dimensional Kerr black hole [11,13]. In our case, since the line-element of a D−dimensional Schwarzschild-Gauss-Bonnet black hole has a Schwarzschild-like form, Eq.…”

Section: General Equation For Particles On the Branementioning

confidence: 99%

“…the greybody factors, must be accurately computed. To date, the greybody factors have been obtained for D-dimensional Schwarzschild [5,6,7] (for a detailed review, see [8]), Reissner-Nordstrom [9], Kerr [10,11,12,13] and Schwarzschild-de-Sitter [14] black holes, for various types of emitted fields.…”

Section: Introductionmentioning

confidence: 99%

Exact results for evaporating black holes in curvature-squared Lovelock gravity: Gauss-Bonnet greybody factors

2005

View full text Add to dashboard Cite

Lovelock gravity is an important extension of General Relativity that provides a promising framework to study curvature corrections to the Einstein action, while avoiding ghosts and keeping second order field equations. This paper derives the greybody factors for D-dimensional black holes arising in a theory with a Gauss-Bonnet curvature-squared term. These factors describe the non-trivial coupling between black holes and quantum fields during the evaporation process: they can be used both from a theoretical viewpoint to investigate the intricate spacetime structure around such a black hole, and for phenomenological purposes in the framework of braneworld models with a low Planck scale. We derive exact spectra for the emission of scalar, fermion and gauge fields emitted on the brane, and for scalar fields emitted in the bulk, and demonstrate how the Gauss-Bonnet term can change the bulk-to-brane emission rates ratio in favour of the bulk channel in particular frequency regimes.

show abstract

“…The emission energy spectrum is characterised by the Hawking temperature, which depends on n, and is larger for lower mass and for more rapidly rotating black holes. It is not a pure black-body spectrum, being modified by gravitational transmission coefficients ("grey-body factors") [15][16][17][18][19][20]. These encode the probability of transmission through the gravitational field of the black hole, and act primarily to disfavour low-energy emissions.…”

mentioning

confidence: 99%

Search for microscopic black holes and string balls in final states with leptons and jets with the ATLAS detector at s $$ \sqrt{s} $$ = 8 TeV

Aad¹,

Abbott²,

Abdallah³

et al. 2014

J. High Energ. Phys.

View full text Add to dashboard Cite

A search for an excess of events with multiple high transverse momentum objects including charged leptons and jets is presented, using 20.3 fb −1 of proton-proton collision data recorded by the ATLAS detector at the Large Hadron Collider in 2012 at a centre-of-mass energy of √ s = 8 TeV. No excess of events beyond Standard Model expectations is observed. Using extra-dimensional models for black hole and string ball production and decay, exclusion contours are determined as a function of the mass threshold for production and the fundamental gravity scale for two, four and six extra dimensions. For six extra dimensions, mass thresholds of 4.8-6.2 TeV are excluded at 95% confidence level, depending on the fundamental gravity scale and model assumptions. Upper limits on the fiducial cross-sections for non-Standard Model production of these final states are set. 6 Event selection 8 7 Background estimation 9 7.1 Prompt background estimation from control regions 9 7.2 Backgrounds from misidentified objects and non-prompt leptons 13 7.3 Background smoothing with fits 148 Systematic uncertainties 159 Results and interpretation 17 Summary 25The ATLAS collaboration 32 IntroductionA long-standing problem in particle physics is the very large difference between two apparently fundamental energy scales: the electroweak scale at O(0.1 TeV) and the gravitational (Planck) scale M Pl = O(10 16 TeV). Models postulating extra spatial dimensions into which the gravitational field propagates attempt to address this hierarchy problem [1][2][3][4]. In most of these models, the Standard Model (SM) fields are constrained to the one time and three spatial dimensions of our universe, whilst the gravitons also propagate into the n "bulk" extra dimensions. In these models, the fundamental gravitational scale in the full (n + 4) space-time dimensions, M D , is dramatically lower than M Pl , and represents an effective scale appropriate for probes of the gravitational interactions at low energies. A value of M D in the TeV range would allow for the production of strong gravitational states such as microscopic black holes at energies accessible at the Large Hadron Collider (LHC) [5][6][7]. Two well-motivated extra-dimensional models are those with large flat extra dimensions -1 - JHEP08(2014)103(ADD models [2,3]) and those with small, usually warped, extra dimensions (RS models [4]). This analysis considers ADD models, for which the n = 1 case is ruled out and the n = 2 case is disfavoured by current astrophysical and tabletop experiments [8]. Thus, benchmark models with two, four and six additional spatial dimensions are considered.Estimates of the black hole production cross-sections invoke semiclassical approximations, the validity of which require the production centre-of-mass energy to be significantly above M D . This motivates the introduction of a production mass threshold M th , well above M D . In the black hole formation stage, some energy is expected to be lost to gravitational or SM radiation. This has recently been calcu...

show abstract

Brane decay of a (4+n)-dimensional rotating black hole: spin-0 particles

Cited by 96 publications

References 112 publications

Angular profile of emission of non-zero spin fields from a higher-dimensional black hole

Angular profile of emission of non-zero spin fields from a higher-dimensional black hole

Exact results for evaporating black holes in curvature-squared Lovelock gravity: Gauss-Bonnet greybody factors

Search for microscopic black holes and string balls in final states with leptons and jets with the ATLAS detector at s $$ \sqrt{s} $$ = 8 TeV

Contact Info

Product

Resources

About