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…

A:

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

A:

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: 1) When pions are brought to rest their lifetime is 1.77 10-8 s. A beam of pions is produced in an…

A: Intensity is measured on a plane perpendicular to the direction of propagation of the energy, where…

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: A supernova explosion of a 1.15 × 1031 kg star produces 2.1 × 1044 J of energy. Randomized…

A:

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

A:

Q: How far could they travel in this time?

A: Given data:γ=11-v2c2Kinetic energy, KE = 500MeV

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: 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 neutral K meson (mass 497.7 MeV/c²) is mot with a kinetic energy of 77.0 MeV. It decays into meson…

A: Given, For K-meson, Mass, mK=497.7 MeV/c2 Kinetic energy, K.E.k=77 MeV For pi-meson, Mass, mπ=139.6…

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…

A:

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: Particle Decay: Aº pion decays via the processº → +1, emit- ting one photon in the forward direction…

A: The decay of pion is  π0→γ1+γ2 The rest mass energy of π0 is mπ=135 MeV/c2.  The momentum of the…

Q: An object with a rest mass of 18633.8 MeV/c2 is moving with a beta of 0.142. What is the…

A: Rest mass m0=18633.8 MeV/c2      β=vc=0.142 Relativistic kinetic energy : (K.E)rel=E-m0c2.....(1)…

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

A:

Q: After being produced, a neutral pion must travel down a tube that is 100 m long to the experimental…

A: Given, The length of the tube, L=100m The lifetime of pion, So, the minimum speed is given by,

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

A:

Q: Two protons traveling at the same speed collide head‑on in a particle accelerator, causing the…

A: Given Mass mπ = 139.6 MeV/c2 Reaction =p+p→p+n+π0

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: 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 +…

A:

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

A:

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

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Q: A kaon with a speed 0.8c in the laboratory decays into two pions, one positively charged and the…

A:

Q: 8. An electron travels at a speed of 8.80 × 9.11 × 10-³1 kg) MeV 107 m/s. What is its total energy?…

A: Given, The speed of the electron, v=8.80×107 m/s The mass of elctron,me=9.11×10-31 Kg

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

A: The kinetic energy of a particle moving with a speed is K=γ-1mc2 The mass of muon is m=105 MeV/c2…

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

A: In the theory of special relativity, time is considered relative and the measured time will depend…

Q: A particle is found to have a lifetime of 30 ms. It is found moving at a speed of 0.999c. How long…

A: As per the theory of special relativity time measured in a moving frame will be slower than the time…