(a) What is the uncertainty in the energy released in the decay of a τ− due to its short lifetime?(b) Is the uncertainty in this energy greater than or less than the uncertainty in the mass of the tau neutrino? Discuss the source of the uncertainty.

Q: Why do leptons have integral charge while quarks have fractional charge?

A:

Q: What is the distance (in fm) a f with kinetic energies of (a) 60 MeV, (b) 60 GeV fly before decay?

A:

Q: When an electron and positron collide at the SLAC facility, they each have 50.0 GeV kinetic…

A: Given: Energy during collision or kinetic energy , KE = 50 GeV = 50000 MeV

Q: A virtual particle having an approximate mass of 1014 GeV/c2 may be associated with the unification…

A: We know,

Q: Verify that, as stated in Module 43-1, neutrons in equilibrium with matter at room temperature, 300…

A: The expression for the average kinetic energy of the neutrons,

Q: Suppose a droplet of unknown mass remains suspended against gravity when Ey = -2.00  105 N/C. What…

A: The strength of the electric field is given as, Ey=-2×105 N/C The electric force exerted by the…

Q: Kane tic energY for an oblect With mass maud Velo city u given by: equation KE-L mV

A:

Q: Assuming conservation of momentum, what is the energy ofeach γ ray produced in the decay of a…

A: The energy of γ can be determine by,

Q: In UARM and free fall Time t is always positive (+). *

A: Required : True or False.

Q: What is the total energy of a proton whose kinetic energy is 25 GeV? What is its wavelength?

A:

Q: What wavelength photon would be required to ionizea hydrogen atom in the ground state and give the…

A: Given that : K.E. = 11.5 eV Ionization energy (I.E.) to transition a photon from ground to excited…

Q: A proton and an antiproton collide head-on, with each having a kinetic energy of 7.00 TeV (such as…

A:

Q: Taking the range of the strong nuclear force to be about 1 fermi ( 10−15 m ), calculate the…

A:

Q: Discuss the relation E=mc2 and its importance.

A:

Q: A neutral pion at rest decays into two photons according to Find the energy, momentum, and frequency…

A: a)By conservation of energy the energy of each of the two identical photon is 1/2E. The energy of…

Q: A particle of mass 250 gm was fıred from the origin with an initial velocity of 4 cm / s. Calculate…

A:

Q: What lifetime do you expect for an antineutron isolated from normal matter?

A:

Q: The principal decay mode of the sigma zero is ∑0 → ʌ0 + ϒ . Considering the preceding and the short…

A: Strangeness of LHS: S=-1 Strangeness of RHS: S=-1+0=-1 Therefore, strangeness is conserved.

Q: Suppose you are designing a proton decay experiment and you can detect 50 percent of the proton…

A: Given: A proton decay experiment and you can detect 50 percent of the proton decays in a tank of…

Q: The decay of one type of K-meson is cited as evidence that nature favors matter over antimatter.…

A: The universe consists of matter and no antimatter. Antimatter (specifically anti-particles) are…

Q: Show that all combinations of a quark and an antiquark produce only integral charges. Thus mesons…

A: qq¯ combination I3 S B Y Q paricle us¯ 1/2 1 0 1 1  k+ ds¯ -1/2 1 0 1 1  k0 su¯ -1/2 -1 0 -1…

Q: The decay mode of the negative muon is μ− → e− + ν -e + νμ .(a) Find the energy released in MeV.(b)…

A: The given reaction is,

Q: Is the decay μ− → e− + νe + νμ possible consideringthe appropriate conservation laws? State why or…

A:

Q: What is the mass of the lightest vector meson formed by light quarks and antiquarks (u and d)?…

A: We know that the Mesons are formed by the combination of quarks and antiquarks. The types of mesons…

Q: Why is it easier to see the properties of the c, b, and t quarks in mesons having composition W − or…

A: Mesons is one of the subatomic particles which composed of pair of quarks i.e., quark and…

Q: One decay mode for the eta-zero meson is η0 → π0 + π0 .(a) Write the decay in terms of the quark…

A:

Q: Given that z = -7, find Vz.

A:

Q: The half-lives of 235U and 238U are 7.04 × 108 years and 4.47 × 109 years, respectively, and the…

A: In this case Initially U2380=U2350 After time t , U238=13.7×U235 In this case, At=A0e-ktk=ln2t1/2

Q: Determine whether or not strangeness is conserved in the following decays and reactions. (a) A° → p+…

A: Step 1 (a) The given reaction is, The strangeness of the Λ0 is -1 The strangeness of the p is 0 The…

Q: Calculate the total kinetic energy (in MeV) carried away by the pions after this decay: Σ0 → n + π+

A:

Q: What is the ratio of the velocity of a 5.00-MeV β ray to that of an α particle with the same kinetic…

A: The kinetic energy for a relativistic particle,

Q: Calculate the total kinetic energy (in MeV) carried away by the pions after this decay: K0 → π+ + π-

A:

Q: One decay mode for the eta-zero meson is n0→π0+π0. How much energy is released?

A:

Q: How can the lifetime of a particle indicate that its decay is caused by the strong nuclear force?

A: Strong nuclear force is one of the fundamental force in nature. Among gravitational force,…

Q: •11 SSM www Which conservation law is violated in each of these proposed decays? Assume that the…

A: The given reaction,

Nuclear interactions

In nature, there are certain rules and standards for an interaction. These interactions are universally accepted. There are four types of interactions: