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3. (10 pts) High energy particle accelerators convert part of the energy of colliding particles into...
The discovery of the antiproton p (a particle with the same rest energy as a proton,...
The discovery of the antiproton p (a particle with the same rest energy as a proton, 938 MeV, but with the opposite electric charge) took place in 1956 through the following reaction: p + p → p+p+p+¯ p, in which accelerated protons were incident on a target of protons at rest in the laboratory. The minimum incident kinetic energy needed to produce the reaction is called the threshold kinetic energy, for which the final particles move together as if they...
The centre of mass, or centre of momentum, (CMS) frame is that in which the sum...
The centre of mass, or centre of momentum, (CMS) frame is that in which the sum of the momenta (i.e., the total momentum) of all particles is zero. An electron has a kinetic energy K of 1 MeV and is incident on a proton at rest in the laboratory. The goal of this exercise is to calculate the speed of the CMS frame moving relative to the laboratory. (a) Express the initial energies Ee, Ep and initial momenta pe, pp...
in the What is the momentum, in the center of mass reference frame, of a reaction...
in the What is the momentum, in the center of mass reference frame, of a reaction +p+Kº+A if the has an energy E= 3 GeV in the laboratory reference frame? Notice that m.,- = 139.6 MeV/ca, mp = 938.3 MeV/c. (Tip: in the laboratory reference frame, the proton is at rest. In the center of mass reference frame, ộp = (P2c2 + m 4,P) and Pa- = (1pe2 +m-c, -D)) A photon with energy E = 10 MeV collides elastically...
In a high-energy collision between a cosmic-ray particle and a particle near the top of the...
In a high-energy collision between a cosmic-ray particle and a particle near the top of the Earth's atmosphere, 120 km above sea level, a pion is created. The pion has a total energy E of 1.35 × 105 MeV and is travelling vertically downward. In the pion's rest frame, the pion decays 35.0 ns after its creation. The rest energy of a pion is 139.6 MeV (a) Calculate the speed of the pion and the Lorentz factor. (10 points) (b)...
Work out the highest mass particle (X) that can be formed in a collision of: 1) a proton beam on a proton (hydrogen) tar...
Work out the highest mass particle (X) that can be formed in a collision of: 1) a proton beam on a proton (hydrogen) target and of 2) two proton beams colliding head-on. Assume that in the collision the only particle produced is the particle X. Assume also that protons in the target are at rest and protons in the beams have energy Eb and momentum (0,0,±PB). The mass of the proton may be taken to be very small compared to...
An alpha particle with a kinetic energy of 10.0 MeV makes a head-on collision with a...
An alpha particle with a kinetic energy of 10.0 MeV makes a head-on collision with a gold nucleus at rest. What is the distance of closest approach of the two particles? (Assume that the gold nucleus remains stationary and that it may be treated as a point change. The atomic number of gold is 79, and the alpha particle is a helium nucleus consisting of 2 protons and 2 neutrons).
An alpha particle with a kinetic energy of 12.0 MeV makes a head-on collision with a...
An alpha particle with a kinetic energy of 12.0 MeV makes a head-on collision with a gold nucleus at rest. What is the distance of closest approach of the two particles? (Assume that the gold nucleus remains stationary and that it may be treated as a point charge. A gold nucleus has 79 protons, and an alpha particle is a helium nucleus consisting of two protons and two neutrons. The mass of an alpha particle is 6.64424 x 10-27 kg....
4th time asking this. Very pissed at the "experts" here. Please be correct An alpha particle...
4th time asking this. Very pissed at the
"experts" here. Please be correct
An alpha particle (a helium nucleus, containing 2 protons and 2 neutrons) starts out with kinetic energy of 10.3 MeV (10.3 times 10^6 EV), and heads in the +x direction straight toward a gold nucleus (containing 79 protons and 118 neutrons). The particles are initially far apart, and the gold nucleus is initially at rest. Answer the following questions about the collision. What is the initial momentum...
can you helpme of third one problem Show that the threshold kinetic energy in the Laboratory...
can you helpme of third one problem
Show that the threshold kinetic energy in the Laboratory for the production of n pions in the collision of protons with a hydrogen target is given by T= 2nm (1 + nm,/4mp) where m, and mp are respectively the pion and proton masses. A gamma ray interacts with a stationary proton and produces a neutral pion according to the scheme y + p → P +7° Calculate the threshold energy given Mp =...
A proton (rest mass is 1.673 times 10^-27 kg, rest energy is 938.3 MeV) has kinetic...
A proton (rest mass is 1.673 times 10^-27 kg, rest energy is 938.3 MeV) has kinetic energy of 2500 MeV. find its momentum (in kg-m/s) (use relativistic relations) find its wavelength if one measures the proton's position to an uncertainty delta x of + l-5.60 times 10^-14 m. find the minimum possible uncertainty in the proton's momentum A panicle of mass 6.646 times 10^-27 kg is confined to a one-dimensional box of length 3.0 times 10^-14 m. What wavelength photon...
in the What is the momentum, in the center of mass reference frame, of a reaction +p+Kº+A if the has an energy E= 3 GeV in the laboratory reference frame? Notice that m.,- = 139.6 MeV/ca, mp = 938.3 MeV/c. (Tip: in the laboratory reference frame, the proton is at rest. In the center of mass reference frame, ộp = (P2c2 + m 4,P) and Pa- = (1pe2 +m-c, -D)) A photon with energy E = 10 MeV collides elastically...
In a high-energy collision between a cosmic-ray particle and a particle near the top of the Earth's atmosphere, 120 km above sea level, a pion is created. The pion has a total energy E of 1.35 × 105 MeV and is travelling vertically downward. In the pion's rest frame, the pion decays 35.0 ns after its creation. The rest energy of a pion is 139.6 MeV (a) Calculate the speed of the pion and the Lorentz factor. (10 points) (b)...
4th time asking this. Very pissed at the
"experts" here. Please be correct
An alpha particle (a helium nucleus, containing 2 protons and 2 neutrons) starts out with kinetic energy of 10.3 MeV (10.3 times 10^6 EV), and heads in the +x direction straight toward a gold nucleus (containing 79 protons and 118 neutrons). The particles are initially far apart, and the gold nucleus is initially at rest. Answer the following questions about the collision. What is the initial momentum...
can you helpme of third one problem
Show that the threshold kinetic energy in the Laboratory for the production of n pions in the collision of protons with a hydrogen target is given by T= 2nm (1 + nm,/4mp) where m, and mp are respectively the pion and proton masses. A gamma ray interacts with a stationary proton and produces a neutral pion according to the scheme y + p → P +7° Calculate the threshold energy given Mp =...
A proton (rest mass is 1.673 times 10^-27 kg, rest energy is 938.3 MeV) has kinetic energy of 2500 MeV. find its momentum (in kg-m/s) (use relativistic relations) find its wavelength if one measures the proton's position to an uncertainty delta x of + l-5.60 times 10^-14 m. find the minimum possible uncertainty in the proton's momentum A panicle of mass 6.646 times 10^-27 kg is confined to a one-dimensional box of length 3.0 times 10^-14 m. What wavelength photon...
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