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visits member for 3 years, 9 months
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Aug
23
answered Ionization by heating
Aug
20
comment How does one experimentally determine chirality, helicity, spin and angular momentum?
actually, the original poster asked for fundamental particles which usually means that they are not composite.
Aug
20
comment How does one experimentally determine chirality, helicity, spin and angular momentum?
in fact, at least in the Standard Model to talk about chirality makes only sense for the fermions (or the sfermions in the MSSM which have spin 0), because chirality is defined by how the corresponding field/particle transforms under $SU(2)_\mathrm{L}$
Aug
18
comment What is the total kinetic energy per second of the particles accelerated by the LHC
Note that the 4 Terawatts counts each particle about 11'000 times (the number of revolutions per second). You could not exploit this power: if you were to fully absorb the energy of the particles (e.g. at the beam dump), the machine would be empty after one revolution.
Aug
18
comment Can lightly-ionized atoms be accelerated to relativistic speeds with current technology?
the ions in these accelerators are fully ionized, not lightly (for lead, this would be Pb 82+), the force exerted on the fully ionized ions is much larger than on the singly ionized while the mass (to be accelerated) of both is more or less the same.
Aug
14
revised Lepto-genesis and electroweak theory
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Aug
14
answered Lepto-genesis and electroweak theory
Jul
25
answered What can drive the higgs mass in mSUGRA up?
Jul
24
comment What will be the goal of (V)LHC after receiving upgrades?
175-200 TeV will certainly not happen in 2019. The energy limitation of the current LHC comes from the maximum field the dipole (bending) magnets can produce. To go to higher energies, one needs to either dig a longer tunnel or do extensive research & development to build large scale magnets achieving higher magnetic fields or both (this is called FCC-hh, there is also a similar Chinese project). Given the large cost of such a project, studies are currently going on to reduce cost and a decision whether or not to build such a machine will not be taken until we have more results from LHC.
Jun
18
comment What is the symmetry associated with the local particle number conservation law for fluid?
see also the question on the symmetry associated to the conservation of mass here: physics.stackexchange.com/q/2690
Jun
18
comment What is the symmetry which is responsible for conservation of mass?
see also physics.stackexchange.com/questions/24596/… on the discussion of the converse Noether's theorem
Jun
13
comment Uncertainty principle - momentum so precise that uncertainty of position is outside light-cone?
how can we talk about particles for which we are not certain they are somewhere in the universe ?
May
9
revised Are nodes and orbitals in atoms simply probability distribution clouds or are they of any physical relevance?
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May
9
awarded  Yearling
May
8
answered DC current in ideal conductor and skin effect?
May
8
answered Resistor and LED - together and separated
May
8
answered Are nodes and orbitals in atoms simply probability distribution clouds or are they of any physical relevance?
May
5
comment Distance and time measurement in the famous Superluminal Neutrinos Experiment
see mi.infn.it/~psala/Icarus/nugsweb/cngs_und.jpg on your question 1 ('Ginevra' is where CERN is). The maximum depth of the path is 10km underground... Digging a tunnel of 700km length may technically be possible but is too expensive (not to mention the time it would take to complete...)
Mar
1
revised Why are radio waves in the 1.43 - 2.5 Mhz range invisible?
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Mar
1
revised Why are radio waves in the 1.43 - 2.5 Mhz range invisible?
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