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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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Mar
1
answered Why are radio waves in the 1.43 - 2.5 Mhz range invisible?
Feb
27
comment What will happen if we will be able to produce a quark-gluon plasma and the we cool it down?
yes, the quark gluon plasma also contains antiquarks. Even an ordinary proton contains anti quarks in what is called the 'sea'. These are created when a gluon splits into a quark/anti-quark pair and normally 'recombine' quickly but they can interact with the quarks/gluons/antiquarks of another proton in a collision. So even if no quark gluon plasma is created in a particular proton-proton (or Lead ion-Lead ion) collision, antiparticles (such as antiprotons) can be produced.
Feb
27
comment What will happen if we will be able to produce a quark-gluon plasma and the we cool it down?
yes, the purpose of colliders is to have energies (or better: energy densities) similar to those shortly after the big bang (in the lab) to study the relevant physical processes which led to the formation of the universe we know today.
Feb
27
comment What will happen if we will be able to produce a quark-gluon plasma and the we cool it down?
yes, exactly. Protons and neutrons are baryons (but in principle other baryons could be formed as well but these are typically short lived as are the mesons).
Feb
27
revised What will happen if we will be able to produce a quark-gluon plasma and the we cool it down?
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Feb
27
answered What will happen if we will be able to produce a quark-gluon plasma and the we cool it down?
Feb
27
comment Is there any way to annihilate matter without the use of anti-matter?
The experimental lower limit on this decay mode of the proton (see pdg8.lbl.gov/rpp2013v2/pdgLive/… ) is $8.2 \cdot 10^{33}$ years (the corresponding publication is here: inspirehep.net/record/814697 ) . This is $5.9\cdot 10^{23}$ larger than the estimated age of the universe (13.8 billion years).