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Dec
4
comment What would happen if you put your hand in front of the 7 TeV beam at LHC?
The design number of bunches is 2808 per beam (see here and $1.15\cdot 10^{11}$ protons per bunch ($3.2 \cdot 10^{14}$ protons per beam), you'll get 362 MJ per beam (at 7 TeV beam energy)
Nov
29
awarded  Yearling
Nov
28
comment What role did the Higgs boson play in the Big Bang?
see the Wikipedia article on the Inflaton, which is a general term for a scalar field which drives inflation. The Higgs field is a scalar field and could be the Inflaton (i.e. drive inflation).
Nov
18
revised How does a magnetic monopole break time reversal symmetry?
added 131 characters in body
Nov
18
revised How does a magnetic monopole break time reversal symmetry?
added 1052 characters in body
Nov
18
answered How does a magnetic monopole break time reversal symmetry?
Nov
7
comment Unitarity of PMNS matrix
if any row or column squared sums to something less than one (experimentally), this is an indication that we're missing something, e.g. a fourth row/column corresponding to an additional species of neutrinos.
Nov
6
comment Software for calculating Feynman Diagrams
MadGraph does only tree level (no loops but many outgoing particles), MadGraph5_aMC@NLO can do one loop
Nov
5
comment Kitchen floor dries faster with lights on?
although traditional incandescent light bulbs and fluorescent tube lights have an efficiency far below 50% (according to en.wikipedia.org/wiki/Fluorescent_lamp#Luminous_efficacy), so more energy is converted to heat than to light for these.
Nov
1
comment Kitchen floor dries faster with lights on?
yes, good point, and the water in turn would heat the region of air immediately above the water
Nov
1
revised Kitchen floor dries faster with lights on?
added 5 characters in body
Nov
1
revised Kitchen floor dries faster with lights on?
added 1208 characters in body
Nov
1
answered Kitchen floor dries faster with lights on?
Oct
10
comment How detectors in particle colliders can differentiate neutrons from antineutrons?
because anti-quarks in the anti-neutrons annihilate with the quarks in the protons and neutrons in the carbon nuclei while at such low energies, a neutron essentially behaves like an (unbreakable) ball
Oct
9
answered What are the main algorithms the LHC particle detectors use to reconstruct decay pathways?
Oct
9
answered How detectors in particle colliders can differentiate neutrons from antineutrons?
Oct
4
answered Use of fission products for electricity generation
Sep
29
comment How can I measure the speed of a figure skater's spin?
the stroboscope (or camera flash which has such a function) probably only works well if she can spin for a enough time while you adjust the stroboscope's frequency...
Sep
29
comment why are two higgs doublets required in SUSY?
see also physics.stackexchange.com/questions/116598/…
Sep
26
comment Why more than one Higgs?
Is there a typo here we don't want the theory to be renormalisable ?