Black holes from the LHC could survive for minutes

lhc-black-holes

There is absolutely, positively, definitely no chance of the LHC destroying the planet when it eventually switches on some time later this year.  Right?

Err, yep. And yet a few niggling doubts are persuading some scientists to run through their figures again. And the new calculations are throwing up some surprises.

One potential method of destruction is that the LHC will create tiny black holes that could swallow everything in their path including the planet. In 2002, Roberto Casadio at the Universita di Bologna in Italy and a few pals reassured the world that this was not possible because the black holes would decay before they got the chance to do any damage.

Now they’re not so sure.  The question is not simply how quickly a mini-black hole decays but whether this decay always outpaces any growth.

Casadio have reworked the figures and now say that:  ” the growth of black holes to catastrophic size does not seem possible.”

Does not seem possible? That’s not the unequivocal reassurance that particle physicists have been giving us up till now.

What’s more, the new calculations throw up a tricky new prediction. In the past, it had always been assumed that black holes would decay in the blink of an eye.

Not any more. Casadio and co say:  “the expected decay times are much longer (and possibly ≫ 1 sec) than is typically predicted by other models”

Whoa, let’s have that again: these mini black holes will be hanging around for seconds, possibly minutes?

That doesn’t sound good. Anybody at CERN care to clarify?

Ref: arxiv.org/abs/0901.2948: On the Possibility of Catastrophic Black Hole Growth in the Warped Brane-World Scenario at the LHC

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    Les égarements mathématiques des scientifiques actuels (”relativisme”, puis “quantisme”) les ont amenés à construire un “Grand Collisionneur de Hadrons”, “LHC”, qui, pensaient-ils, “allait enfin leurs apporter la compréhension de l’univers”.
    Ce “collisionneur” qui a coûté plus de huit milliards d’euros, n’est en fait qu’une énorme et monstrueuse machine à pulvériser les atomes et ces scientifiques, comme des gosses qui ne pourront jamais comprendre comment est fait le jouet qu’ils pulvérisent à grands coups de marteau, ne pourront jamais comprendre ce qu’est l’univers.
    Le présent ouvrage, qui lui, explique enfin ce qu’est réellement, concrètement l’univers et comment il fonctionne, vaut donc déjà plus de huit milliards d’euros :

    http://www.liberes-des-mathematiques-savoir-enfin-ce-qu-est-l-univers.net

    Ce LHC, d’une part, n’est pas plus dangereux qu’un individu qui aurait décidé de pulvériser tous les grains de sable du sahara, un par un, et d’autre part les “trous noirs” n’étant également que produit d’égarement mathématique et n’existant nulle part ailleurs que dans les cerveaux de ceux qui les ont inventés, ce LHC n’est donc tout au plus capable que d’augmenter ces mêmes “trous noirs” dans ces mêmes cerveaux, et c’est tout.

    Bien cordialement Jean Vladimir Térémetz

  4. Bonjour

    Les égarements mathématiques des scientifiques actuels (”relativisme”, puis “quantisme”) les ont amenés à construire un “Grand Collisionneur de Hadrons”, “LHC”, qui, pensaient-ils, “allait enfin leurs apporter la compréhension de l’univers”.
    Ce “collisionneur” qui a coûté plus de huit milliards d’euros, n’est en fait qu’une énorme et monstrueuse machine à pulvériser les atomes et ces scientifiques, comme des gosses qui ne pourront jamais comprendre comment est fait le jouet qu’ils pulvérisent à grands coups de marteau, ne pourront jamais comprendre ce qu’est l’univers.
    Le présent ouvrage, qui lui, explique enfin ce qu’est réellement, concrètement l’univers et comment il fonctionne, vaut donc déjà plus de huit milliards d’euros :

    http://www.liberes-des-mathematiques-savoir-enfin-ce-qu-est-l-univers.net

    Ce LHC, d’une part, n’est pas plus dangereux qu’un individu qui aurait décidé de pulvériser tous les grains de sable du sahara, un par un, et d’autre part les “trous noirs” n’étant également que produit d’égarement mathématique et n’existant nulle part ailleurs que dans les cerveaux de ceux qui les ont inventés, ce LHC n’est donc tout au plus capable que d’augmenter ces mêmes “trous noirs” dans ces mêmes cerveaux, et c’est tout.

    Bien cordialement Jean Vladimir Térémetz

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