Which of the following processes exists and can be used to measure the Higgs self coupling parameter A at a hadron collider (only one correct answer). Explain yourchoice in the worked script.a. ggH → HH → e¹é¯e+é¯¯b. ggg HH → bbbbc. gg→ H → HH → τ+˜¯bbd. gg HZZ → ±±±¯bb→ττe. gg → Z → ZH → e*e¯bb

Step 1:This process exists and can be used to measure the Higgs self-coupling parameter at a hadron…

Answered: Which of the following processes exists…

Modern Physics

3rd Edition

ISBN:9781111794378

Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Publisher:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Chapter13: Nuclear Structure

Section: Chapter Questions

Problem 8P

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(a) Estimate the mass of the luminous matter in the known universe, given there are 1011 galaxies, each containing 1011 stars of average mass 1.5 times that of our Sun. (b) How many protons (the most abundant nuclide) are there in this mates? (c) Estimate the total number of particles in the observable universe by multiplying the answer to (b) by two, since there is an electron for each proton, and then by 109, since there are far more particles (such as photons and neutrinos) in space than in luminous matter.
A. Compiete the following nuclear reactions and identify the cosmic phase (big bang, stellar formation, stellar explosion) in which the reaction occurred! DON'T FORGET TO IDENTIFY IF ITS BIGBANG, STELLAR FORMATION OR STELLAR EXPLOSION 1. p+ H + y 2. He+H→+p - Si + Y Ca + Y 3. Mg+ - 4. 3Ar+ 5. 1Cd+ in-→ 48
4. Draw one tree-level, lowest-order Feynman diagram corresponding to the dominant force for each of the following Standard Model processes. Use only fundamental particles, label them, and clearly indicate which particles are in the initial state and which are in the final state. Show all spectator quarks. NB the notation X(919293) indicates that a hadron 'X' is composed of valence quarks with flavours 9₁, 92 and 93 respectively. 1. 7+ + 7¯ → et + e¯ (at a centre of mass energy of 90 GeV) T 2. et +eV, +, (at a centre of mass energy of 5 GeV) 3. A+(uud) →n + π (ud) 4. +(uus)p+nº
b. Answer the following questions. i. Determine E for a three-level system separated by hv between each level where the middle level is doubly degenerate. ii. Determine E for a level separation of 300 cm-1 at 300K. iii. Determine P, and P2 under conditions of part iii. above.
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A photon beam (2λ = 1.00 pm) is incident on a sphere with radius 1.00 mm. It has energy 100 MeV. a. Assuming that within the sphere there are 1000 type A-interactions, what is the cross section of this type-A interaction? b. Assuming that within the sphere there are 2000 type B-interactions, what is the cross section of this type-B interaction?
Q6: a- Give the possible values of the isotopic spin and its z-component for the following system of particles: n +p b- In the following reaction, what particle is possible for the unknown particle X? (The reaction is strong): p+p n* +n+ 1° + X Find the threshold energy for the reaction C- p+p p+p+ n°.
A nucleus traveling at speed vnucleus = c(1 - 10-5) decays with the emission of a particle of speed vdecay particle = c(1 - 2 x 10-4) at an angle of 45°, as shown in the diagram above. i) What is the velocity (speed and direction) of the decay particle on transforming to the stationary frame of reference of the nucleus. Clearly explain the quantities used in your evaluation, and show the directions and signs of quantities. Give the speed of the decay particle in the form c(1 - ?). ii) If the decay particle was an electron, what was its total energy in the rest frame of the nucleus? What was its total energy in the original frame shown in the above diagram?Give your answers in units of MeV.
More than 60 years ago, future Nobel laureate Sheldon Glashow predicted that if an antineutrino — the antimatter answer to the nearly massless neutrino — collided with an electron, it could produce a cascade of other particles. The Glashow resonance phenomenon is hard to detect, in large part because the antineutrino needs about 1,000 times more energy than what's produced in the most powerful colliders on Earth. 1. What is the threshold antineutrino energy for the Glashow resonance in peta electronvolts (PeV)? 2. What is this threshold energy in units of joules? 3.Now consider a baseball with the same kinetic energy as that of the Glashow resonance. What speed in m/s would correspond to this energy? 4.What is this rate in units of inches/second?

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