All matter is composed of quarks and leptons.

Q: How many half-lives have passed if about 3% (rounded) of the original parent material is left?

A: How many half-lives have passed if about 3% (rounded) of the original parent material is left?

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

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Q: What is the reason behind the creation of the Large Hadron Collider?

A: Required : What is the reason behind the creation of the Large Hadron Collider?

Q: What particle has the quark composition ūūd- ?

A: Quarks are elementary particles; building blocks of matter. According to the present model, there…

Q: Define the following terms:a) Quarksb) Nucleonc) Strong Force

A: a). Quark is an elementary particle which is the basic form of matter that can make heavier…

Q: Determine the muon-lepton number in the reaction u → e + De + V. (b) Determine the value of strange-…

A: The reaction is,

Q: The quark compositions of the proton and neutron are, respectively, uud and udd, where u is an up…

A: The quark composition of the proton is uud The quark composition of the neutron is udd The quark…

Q: Calculate the amount of energy in MeV released when a 0.69·10-27 kg and a 1.13·10-27 kg particle at…

A: Given M1 = 0.69 × 10-27 kg M2 = 1.13 × 10-27 kg To find  Amount of energy released in MeV

Q: The sigma-zero particle decays mostly via the reaction Σ0 → Λ0 + γ . Explain how this decay and the…

A: Both Σ0 and Λ0 particles have the same quark combination given as (uds). Particles with same quark…

Q: boson

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Q: Which of the following is NOT flavor of quark? A strange B charm C top (D red

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Q: Suppose leptons are created in a reaction. Does this imply the weak force is acting? (for example,…

A: Yes, the lepton creation in a reaction denotes action of weak force. The weak nuclear force causes…

Q: We need to estimate the temperature at recombination from the figure below. (Estimate a temperature…

A: From the graph, the temperature at the recombination i;

Q: Why do the charged particles flying through bubble chambers travel in spiral paths rather than in…

A: Charged particles flying through bubble chambers travel in spiral paths rather than in the circular…

Q: The starship Enterprise, of television and movie fame, is powered by combining matter and…

A: Understand that when matter and antimatter combines with each other, their mass also combines and…

Q: What occurs when a particle of matter and a particle of antimatter meet?

A: When a particle of matter and a particle of antimatter meet they annihilate each other and neither…

Q: What is the quark formation that makes up (a) the xi-minus particle and (b) the anti-xi-minus…

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Q: CERN can accelerate protons up to 99.9999991% of the speed of light. What is the γ factor for these…

A: Given that                   The speed of the protons is (v) = 99.9999991% of the velocity of the…

Q: Explain how conservation of baryon number is responsible for conservation of total atomic mass…

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Q: Which particles are categorized as Baryons?

A: Introduction: A quark is defined as a type of elementary particle and a fundamental constituent of…

Q: radius 32.0 cm Just before emerging from the deuterons. The Deuterons in a cyclotron describes a…

A: Given,Radius, R=32 cmfrequency, f=10 MHzmass of deutron, m=2×1.6×10-27 kg

Q: Doubly charged baryons are known to exist. Why are there no doubly charged mesons?

A: Mesons are charge less and mass less particles which exist in form of wave energy or packets of…

Q: Which of the following is composed of two down quarks and an up quark? O muon O electron O neutron O…

A: Down quark = -1e3 Up quark = 2e3 According to there are 2 down quarks and 1 up quarks Therefore,…

Q: Baryons need to be made up of an odd number of quarks. Give reason?

A: Introduction: In particle physics, a baryon is a type of composite subatomic particle which contains…

Q: How can the weak nuclear force change the flavor of a quark?

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Q: Why didn’t atoms exist until hundreds of thousands of years after the Big Bang?

A: When the Big Bang occurred, the temperature and the density was too high, and it didn’t allow to…

Q: Find the number of electrons, and of each species of quark, in 1 L of water.

A: The total number of molecules in water,

Q: What were the three quark types or flavors  proposed?

A: Quark is a fundamental particle, of which electrons, neutrons and protons are made of.

Q: Consider the following decay: π0 → μ- + e+ + υμ. What conservation laws are violated by this decay?…

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Q: Trace amounts of 7Li were created during Big Bang Nucleosynthesis.  Calculate the binding energy per…

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

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Q: Hadrons are composed of O quarks, antiquarks, O leptons or both O electrons O bosons

A: Hardons is the word comes from the Greek word hadrós which means thick. Therefore, the hardons…

Q: Is the proton stable?

A: Proton is absolutely stable.

Q: What is Higg's boson?

A: In the particle physics, Higgs boson is an elementary particle.It is called “God particle” in the…

Q: Mesons should be made up of an even number of quarks. Give reason?

A: Quarks are the fundamental building blocks of hadrons.…

Q: What is the energy of each photon produced by positron– electron annihilation? (a) 1/2 mev2 , where…

A: Annihilation is a process of converting mass into radiation. It follows from Einstein's mass-energy…

Q: The quark compositions of the proton and neutron are, respectively, uud and udd, where u is an up…

A: The case says that a proton is collided with an antineutron, so we have the reaction p + n →X +…

Q: Why we cannot isolate a single quark?

A: Quarks can never be isolated, when the elastic band breaks, then a new quark is produced in energy…

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

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