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Physics Professor
Physics Professor
Physics Professor
Nobel Laureate in Physics
Disagree
Concerns have been raised in three general categories: a) Formation of a black hole or gravitational singularity that accretes ordinary matter, b) Initiation of a transition to a lower vacuum state, c) Formation of a stable strangelet" that accretes ordinary matter. Our conclusion is that the candidate mechanisms for catastrophe scenarios at the RHIC are firmly excluded by existing empirical evidence, compelling theoretical arguments, or both. [note: the RHI Collider went operational in 2000]
Particle Physicist
Disagree
The size of these black holes is too small, and their life span too short, to pose any threat... similar black holes are created organically every day when cosmic rays smash into the earth’s atmosphere at even higher energies than those found in particle accelerators.
European Organization for Nuclear Research
Disagree
The Large Hadron Collider can achieve an energy that no other particle accelerators have reached before, but Nature routinely produces higher energies in cosmic-ray collisions. Concerns about the safety of whatever may be created in such high-energy particle collisions have been addressed for many years. In the light of new experimental data and theoretical understanding, the LSAG has updated a review of the analysis made in 2003 by the LHC Safety Study Group, a group of independent scientists.
Physics Professor
Physics Professor
Disagree
Rössler argues that he is able to conclude, based on his reinterpretation of the
Schwarzschild metric, that Black Holes do not emit Hawking radiation [hypothesized by Steven Hawking] and will thus exist forever. Therefore, if produced at the LHC, they would represent a serious danger: instead of decaying by radiation, they would exist eternally and would have sufficient time to gradually devour their environment. ... We will see that his argument is not valid ...
Analysis Group
Disagree
The safety of collisions at the Large Hadron Collider (LHC) was studied in 2003 by the LHC Safety Study Group, who concluded that they presented no danger. Here we review their 2003 analysis ... which enable us to confirm, update and extend [their] conclusions... The LHC reproduces in the laboratory, under controlled conditions, collisions at centre-of-mass energies, less than those reached in the atmosphere by some of the cosmic rays that have been bombarding the Earth for billions of years.
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