Re: Higgs signal? --- could be big, big news



On Jan 24, 1:54 am, mme...@xxxxxxxxxxxxxxxxxx wrote:
In article <1169620978.715081.22...@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>, "Eric Gisse" <jowr...@xxxxxxxxx> writes:





On Jan 23, 9:18 pm, mme...@xxxxxxxxxxxxxxxxxx wrote:
In article <1169619097.647445.100...@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>, "PD" <TheDraperFam...@xxxxxxxxx> writes:

Along with the news that improved measurements of the W mass have
lowered the most likely range of the Higgs mass to be within reach of
the Tevatron, there is news brewing at two experiments there, DZero and
CDF, of a possible Higgs signal.

A preliminary plot released by DZero shows a bump in the bb invariant
mass spectrum -- well, another bump besides the big one at 81GeV (the
Z, you silly!). The little bump is between 140 and 150 GeV. DZero isn't
quoting anything about the statistical significance of the bump, but
eyeballing it gives it about a 2.5 sigma look to me. CDF is due in
about three weeks to release their bb spectrum, but the airwaves are
a-twitter that they see a bump, too, in the same vicinity. DZero may be
the first to hint broadly, but CDF may hint twice -- they also see an
excess in a steeply falling tau-tau mass spectrum at about 160 GeV and
it's a little over 2 sigma there as well.

I'm sure both collaborations have shifted into overdrive and are going
to spend the next month largely without sleep. If they declare
discovery, then several things happen:
- DZero and CDF add discovery of the Higgs to discovery of the top
quark, the two most important discoveries since the sighting of the W
by Carlo Rubbia. This will force a serious examination of how to hand
out Nobel Prizes to two 500-member collaborations.

Everyone gets a ring made from the Nobel's gold divided amongst 500
people, subject to weighting concerns. If there is not enough gold,
suggested substitutions include pendants, rings with gold settings,
bullets, and plated pens.:-)))

- Fermilab ups its prestige ante for the contract of the Humongous
Linear Collider.
- The mass of the Higgs will be fed back into the calculations to
constrain other masses of the minimally supersymmetric standard model,
and LHC's mission will be revamped to be clean-up of that sector, with
considerable changes to the trigger plan of the experiments planned
there.Well, well, seems like exciting times may come back, for high energy
physics. About time.

Its' been about 30 years since the last big particle physics payoff,
IIRC. Ok, "if I remember my history correctly" - the stuff I'm thinking
predates my _existence_


Well, close, 20+ years. The W and Z that Paul mentioned. Early 80s.

You're forgetting the top quark, which was discovered more recently, in
1995.

.

Relevant Pages

  • Re: Higgs signal? --- could be big, big news
    ... of a possible Higgs signal. ... mass spectrum -- well, another bump besides the big one at 81GeV (the ... The little bump is between 140 and 150 GeV. ... DZero and CDF add discovery of the Higgs to discovery of the top ...
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  • Re: Higgs signal? --- could be big, big news
    ... of a possible Higgs signal. ... mass spectrum -- well, another bump besides the big one at 81GeV (the ... The little bump is between 140 and 150 GeV. ... DZero and CDF add discovery of the Higgs to discovery of the top ...
    (sci.physics)
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