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Related papers: Black hole production and Large Extra Dimensions

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We consider the production and decay of TeV-scale black holes. Evaluation of the production cross section of higher dimensional rotating black holes is made. The master field equation for general spin-$s$ fields confined on brane world is…

High Energy Physics - Phenomenology · Physics 2007-05-23 Daisuke Ida , Kin-ya Oda , Seong Chan Park

We consider the production and decay of TeV sized black holes. After discussing evaluation of the production cross section of higher dimensional rotating black holes and black rings, the master equation for general spin-$s$ fields confined…

High Energy Physics - Phenomenology · Physics 2010-07-30 Daisuke Ida , Kin-ya Oda , Seong Chan Park

We propose a decay signature for non-thermal small black holes with masses in the TeV range which can be discovered by neutrino observatories. The black holes would result due to the impact between ultra high energy neutrinos with nuclei in…

High Energy Physics - Phenomenology · Physics 2015-06-15 Nicusor Arsene , Xavier Calmet , Laurentiu Ioan Caramete , Octavian Micu

In curved space time inside the shell of TeV black holes, many gluons and quarks produce due to Unruh effect, interact with each other and create Higgs boson. Studying the Unruh effect, we show that the inside state of the black hole for…

High Energy Physics - Phenomenology · Physics 2017-02-15 Tooraj Ghaffary , Alireza Sepehri , Sayeedul Islam , Farook Rahaman

Particles dropped into a rotating black hole can collide near the inner horizon with enormous energies. The entropy produced by these collisions can be several times larger than the increase in the horizon entropy due to the addition of the…

General Relativity and Quantum Cosmology · Physics 2012-01-16 Gavin Polhemus , Andrew J S Hamilton

We explore the formation process of a black hole (BH) through the pair-instability collapse of a rotating Population III very massive star in axisymmetric numerical relativity. As the initial condition, we employ a progenitor star which is…

High Energy Astrophysical Phenomena · Physics 2019-01-23 Haruki Uchida , Masaru Shibata , Koh Takahashi , Takashi Yoshida

Many scenarios beyond the standard model, aiming to solve long-standing cosmological and particle physics problems, suggest that dark matter might experience long-distance interactions mediated by an unbroken dark $U(1)$ gauge symmetry,…

High Energy Physics - Phenomenology · Physics 2022-08-02 Sanjoy Biswas , Emidio Gabrielli , Barbara Mele

Primordial black holes (PBHs) are a useful tool in cosmology to probe primordial inhomogeneities on small scales that reenter the Hubble radius during the radiation dominated epoch. In this paper, a phenomenon we call the double formation…

General Relativity and Quantum Cosmology · Physics 2014-10-20 Tomohiro Nakama

Large primordial Black Hole (PBH) formation is enhanced if strongly coupled scalar and spinor fields ($\Phi$ and $\psi$) are a stable cosmic component since the primeval radiative expansion (SCDEW models). In particular, we show that PBH…

Cosmology and Nongalactic Astrophysics · Physics 2019-04-10 S. A. Bonometto , R. Mainini , M. Mezzetti

In a class of single field models of inflation, the idea of Primordial Black holes(PBHs) production is studied. In this case, the dynamics on small cosmological scales differs significantly from that of the large scales probed by the…

Cosmology and Nongalactic Astrophysics · Physics 2022-10-19 Mayukh R. Gangopadhyay , Jayesh C. Jain , Devanshu Sharma , Yogesh

In models with extra dimensions, a black hole evaporates both in the bulk and on the visible brane, where standard model fields live. The exact emissivities of each particle species are needed to determine how the black hole decay proceeds.…

High Energy Physics - Theory · Physics 2009-11-11 Vitor Cardoso , Marco Cavaglia , Leonardo Gualtieri

We studied the possibility whether the massive primordial black holes (PBHs) surviving today can be produced in hybrid inflation. Though it is of great interest since such PBHs can be the candidate for dark matter or seeds of the…

Cosmology and Nongalactic Astrophysics · Physics 2023-12-06 Masahiro Kawasaki , Yuichiro Tada

More than 300 supermassive black holes have been detected at redshifts larger than 6, and they are abundant in the centers of local galaxies. Their formation mechanisms, however, are still rather unconstrained. A possible origin of these…

High Energy Astrophysical Phenomena · Physics 2024-10-23 Benjamin Gaete , Dominik R. G. Schleicher , Alessandro Lupi , Bastian Reinoso , Michael Fellhauer , Marcelo C. Vergara

Hawking evaporation of black holes in the early Universe is expected to copiously produce all kinds of particles, regardless of their charges under the Standard Model gauge group. For this reason, any fundamental particle, known or…

High Energy Physics - Phenomenology · Physics 2022-02-01 Andrew Cheek , Lucien Heurtier , Yuber F. Perez-Gonzalez , Jessica Turner

Black hole formation (BHF) in hadron collisions is a subject of great interest. Hard quark-quark collisions are generally associated with the production of particles at large transverse momenta or with high multiplicities. If BHF occurs, we…

High Energy Physics - Phenomenology · Physics 2009-11-07 Michael J. Longo

Hierarchical structure formation inevitably leads to the formation of supermassive binary black holes (BBHs) with a sub-parsec separation in galactic nuclei. However, to date there has been no unambiguous detection of such systems. In an…

Astrophysics · Physics 2009-11-13 Kimitake Hayasaki , Shin Mineshige , Luis C. Ho

A benchmark CP-violating supersymmetric scenario (known in the literature as `CPX-scenario') is studied in the context of the Large Hadron Collider (LHC). It is shown that the LHC, with low to moderate accumulated luminosity, will be able…

High Energy Physics - Phenomenology · Physics 2008-11-26 Priyotosh Bandyopadhyay , Amitava Datta , AseshKrishna Datta , Biswarup Mukhopadhyaya

Vast amounts of entropy are produced in black hole formation, and the amount of entropy stored in supermassive black holes at the centers of galaxies is now much greater than the entropy free in the rest of the universe. Either mergers…

General Relativity and Quantum Cosmology · Physics 2016-08-31 Thomas W. Kephart , Y. Jack Ng

TeV scale black hole thermodynamics in the presence of quantum gravity effects encoded in the existence of a minimal length and a maximal momentum is studied in a model universe with large extra dimensions.

High Energy Physics - Theory · Physics 2012-06-26 Kourosh Nozari , P. Shahini

We study black hole formation in the head-on collision of ultrarelativistic charges. The metric of charged particles is obtained by boosting the Reissner-Nordstr\"om spacetime to the speed of light. Using the slice at the instant of…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Hirotaka Yoshino , Robert B. Mann