Physicists at the Stanford Linear Accelerator Center (SLAC) bombarded 9-GeV electrons head-on with 3.1-GeV positrons to create B mesons and anti-B mesons. What speeds did the electron and positron have when they collided?

Q: object with a rest mass of 13722.4 MeV/c2 is moving with a B(beta) of 0.496. What is the…

A: Here we use relativistic mechanics

Q: A particle has a mass of 1.6E-27 kg and it travels at a speed of 0.872c, where c is the speed of…

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Q: Two π+ mesons are created. One is created at rest in the laboratory, and one moving at v = (4/5)c. c…

A: Given : Let us say that π1 is created at rest in the laboratory frame and π2 is the one which is…

Q: The relativistic total energy of a proton (E=938 MeV) moving at a speed of V = 0.86c is 1580 MeV…

A: We know that:-The relativistic energy of a particle, EE=pc2+mc22here, ρ is the momenteum of the…

Q: Q/ if the real half-life of muons x 10 is 2.2 seconds. What is the average distance that they must…

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Q: What is γ for a proton having a mass energy of 938.3 MeV accelerated through an effective potential…

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Q: The K+ meson, a subatomic particle, has an average rest lifetime of 1.0 x 10-8 s. If the particle…

A: The time interval for an event measured in a moving inertial frame  is related to the time interval…

Q: A muon is a lepton that is a higher-mass (rest mass 105 MeV/c2) sibling to the electron. Muons are…

A: Given: Muons are produced in the upper atmosphere when incoming cosmic rays collide with the nuclei…

Q: The muon is a heavier relative of the electron; it is unstable, as we’ve seen. The tauon is an even…

A: Given: The half-life of tauon relative to muon is t=2.9X10-13 The velocity of tauon is v=0.999c.…

Q: The mass of a muon is 207 times the electron mass; the average lifetime of muons at rest is 2.20 ms.…

A: a)The time dilation equation is given by,

Q: The mean lifetime of pi mesons (pions) is 26 ns. A beam of pions is travelling at 0.93c. As measured…

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Q: Suppose a particle called a kaon is created by cosmic radiation striking the atmosphere. Randomized…

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Q: The average lifetime of mu-meson is 2.19698-106 s. These subatomic particles are produced high in…

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Q: A K⁻ meson has a rest lifetime of 1.24 x 10⁻⁸ s. If one of these particles is created in a particle…

A: Formula of time dilation is as follows: ∆t'=∆t1-v2c2…

Q: A particle having a lifetime of 50 ms is moving at a velocity of 0.98c. How long does it live?

A: As per the theory of special relativity, time is relative. Time perceived by an observer will depend…

Q: High-energy particles are observed in laboratories by photographingthe tracks they leave in certain…

A: Time is relative and the measured time will depend on the motion and presence of gravitational force…

Q: A particle has a proper lifetime of 2.5 × 10^−6s. How fast/gamma must it be going to arrive on the…

A: To calculate the speed and gamma factor of the particle, we need to use the formula:  γ = 1/√(1 -…

Q: Consider a proton having an energy of 0.85 TeV, produced by the Fermilab accelerator. Part (a)…

A: The energy of the proton,                           We need to find the relativistic parameter for…

Q: An electron with a total energy of 30.0 GeV collides with a stationary positron. (a) What is the…

A: When both masses are equal then total energy is much greater than rest energy, therefore available…

Q: A energiy of S x133Mer 3 x15° Me VIC particle has a total and momentum of rest mass '? w hat is 4]…

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Q: A muon is a lepton that is a higher-mass (rest mass 105 MeV/c2) sibling to the electron. Muons are…

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Q: he average lifetime of a meson in its own frame of reference is 26.0 ns. (This is its proper…

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Q: In the first upgrade of the Large Hadron Collider, each of the colliding proton beams was designed…

A: When an object is moving with a velocity comparable to that of light relativistic effects should be…

Q: What is the rest energy of a positive kaon, given its mass is 8.80 ✕ 10−28 kg? Give your answer in…

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Q: A kaon at rest decays into two pions ( KO → T* + n¯). Find the energy, momentum and the velocity of…

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Q: A new particle, the joelon, has just been discovered! Careful measurements show that the joelon has…

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Q: A short-lived particle with mass 454.4 MeV/c² and lifetime 2.5 μs is created in the upper atmosphere…

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Q: A supernova explosion of a 1.25 × 1031 kg star produces 1.9 × 1044 J of energy. Randomized…

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Q: The average lifetime of a pi meson in its own frame of reference (i.e., the proper lifetime) is 2.6…

A: Given Data: Average life time of pi meson (∆t) = 2.6×10-8 s.Speed of the pi meson (v) = 0.93c. To…

Q: A kaon at rest decays into two pions ( K° → n* +n¯). Find the energy, momentum and he velocity of…

A: Kaon decay  in two pions

Q: The neutron has a mass of 1.67 ✕ 10−27 kg. Consider a neutron moving with a speed of 0.910c. (Enter…

A: Given:- The proton has a mass m = 1.67 ✕ 10−27 kg a proton moving with a speed of 0.910c

Q: High-energy particles are observed in laboratories by photographing the tracks they leave in certain…

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Q: A neutral -meson is a particle that can be created by accelerator beams. If one such particle lives…

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Q: An antiproton p has the same rest energy as a proton. It is created in the reaction p + p → p + p +…

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Q: If a proton has a kinetic energy of 1.000 GeV, what is its momentum? (m, Mev) = 938.0 MeV/c2 1 Gev =…

A: Kinetic energy, KE =1 GeV=1000 MeV=103 MeV Mass of proton, mp=938 MeV/c2

Q: What is the rest energy (in joules) of a subatomic particle whose (rest) mass is 6.7×10−31 kg?  How…

A: Rest mass m0=6.7×10^-31 kg  Rest mass energy E=m0C2  C=3×10^8 m/s

Q: Giving your answers to four significant figures, find γ and β = u/c for the following particles when…

A: We are given the kinetic energy of particles. We are also given mass of particles. The energy is…

Q: While in flight, an unstable particle decays into three pions (rest mass 140 MeV/c²) according to…

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Q: Cosmic ray muons are produced high in the atmosphere (at 8000 m, say) and travel toward the earth at…

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