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Questions related to Elementary Particle Physics
how many goldstone bosons appear as a spntaneous symmetry breaking in process of higgs mechanism? The SM SU(3)_{C}xSU(2)_{L}xU(1)_{Y} breaks down to SU(3)_{C}xU(1)_{EM} as a result of spontaneous...
08 August 2016 1,415 4 View
One can not deny the possibility that the three neutrino masses may be approximately degenerate at the low energy scale : m1 ~ m2 ~ m3. Is this possible that we can experience the situations...
08 August 2016 6,513 3 View
We have come across several works , where some discrete symmetries is invoked for the stability of a potential DM candidate. That we do by assigning Z_n charges on the respective particles whom we...
08 August 2016 6,863 3 View
In SUSY we add a second higgs doublet, so we end up with eight degrees of freedom. Three are eaten by the Standard model gauge bosons, leaving 5 higgs bosons. my questions is: why are the 3...
08 August 2016 1,457 3 View
In other words: Attracts gravity single charges resp. charged particles like electrons or protons?
07 July 2016 3,734 4 View
I remember in 1980-s when I had a chance to spend some time in the USA that I met both expressions mentioned frequently in books which were popular that time. These books were related to natural...
07 July 2016 4,047 2 View
How the gravitons determine the gravitational force between two masses?
21 June 2016 6,237 24 View
Read 1 answer by scientists to the question asked by Tareq Alhalholy on Jun 16, 2016
16 June 2016 3,631 1 View
We know that the branching fraction of Higgs boson and bbbar coupling is more than 50 percent, while that of Higgs and ccbar is small, about 2 to 3 percent. Then is it possible to extract the...
06 June 2016 9,330 2 View
06 June 2016 5,847 49 View
06 June 2016 8,866 1 View
I have come across the term "normalized hypercharge" in context with group theory in particle physics. I want to know what is the meaning of "normalization" of hypercharge and how to compute this.
06 June 2016 5,964 7 View
We know that the \eta_c is the ground state of charmonium, and it has hundreds of hardronic decay modes. Once the Belle and Babar have measured the cross section of J/\psi + \eta_c (Phys. Rev....
06 June 2016 3,375 1 View
For example, How is the particulate behavior (not wave behavior) of photons different from that of tennis balls?
06 June 2016 4,818 18 View
Some nuclei have a magnetic moment. But the nucleus consists of nucleons, the latter are composed from elementary particles. Have any elementary particles only magnetic moment or there are...
06 June 2016 1,142 6 View
In search of particles we have to do wait till particle get some such expression which can come under out calculations and tools, for the purpose often collision of particle technique come in use....
06 June 2016 651 4 View
04 June 2016 4,916 3 View
A photon's energy is inversely proportional to it's wavelength. As it becomes red-shifted, it's wavelength becomes larger so it's energy becomes smaller.
30 May 2016 5,042 89 View
05 May 2016 2,886 90 View
Up to now it seems it is not possible to determine the size of an elementary particle. However, it is obvious that such relationship should exist if we attempt to formulate physical laws in terms...
05 May 2016 9,583 69 View
The electron-positron pair production as well as the β+-emission require a minimum energy of 1,022MeV. Therefore it can be stated that the underlying cause of the β+-emission is a...
26 April 2016 7,061 30 View
What are the parameters for the description of any elementary particle as per Standard Model?
21 April 2016 8,104 3 View
CP asymmetry in neutrino sector.
04 April 2016 6,288 6 View
Can the dynamics in concentrations, structures, interactions and location of all the entities in the produce cellular states defined as state of "energy" with extra-dimensions?
04 April 2016 8,143 7 View