Inquiry into Physics
8th Edition
ISBN: 9781337515863
Author: Ostdiek
Publisher: Cengage
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Chapter 12, Problem 26P
To determine
The quark combination which makes up the given subatomic particle.
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The D.
meson possesses -1 unit of charge, -1 unit of strangeness, and -1 unit of charm. Identify the quark combination making up this rare subatomic particle.
CS
CS
dc
TheΥmeson,bbˉ, is the bottom-quark analog to theψ,ccˉ. Its mass is9460MeV/c2, and its lifetime is1.5×10−20sec. From this information, what can you say about the mass of the B meson,ubˉ? (The observed mass is5280MeV/c2.)
You have entered a graduate program in particle physics and are learning about the use of symmetry. You begin by repeating the analysis that led to the prediction of the Ω- particle. Nine of the spin- 3/2 baryons are four ∆ particles, each with mass 1232 MeV/c2 , strangeness 0, and charges +2e, +e, 0, and -e; three Σ* particles, each with mass 1385 Me/c2 , strangeness -1, and charges +e, 0, and -e; and two Ξ* particles, each with mass 1530 MeV/c2 , strangeness -2, and charges 0 and -e. (a) Place these particles on a plot of S versus Q. Deduce the Q and S values of the tenth spin- 3/2 baryon, the Ω- particle, and place it on your diagram. Also label the particles with their masses. The mass of the Ω- is 1672 MeV/c2 ; is this value consistent with your diagram? (b) Deduce the three-quark combinations (of u, d, and s) that make up each of these ten particles. Redraw the plot of S versus Q from part (a) with each particle labeled by its quark content. What regularities do you see?
Chapter 12 Solutions
Inquiry into Physics
Ch. 12 - Prob. 1AACh. 12 - Prob. 2AACh. 12 - Prob. 1PIPCh. 12 - Prob. 1MIOCh. 12 - Prob. 2MIOCh. 12 - Prob. 1QCh. 12 - Prob. 2QCh. 12 - Prob. 3QCh. 12 - Prob. 4QCh. 12 - Prob. 5Q
Ch. 12 - Prob. 6QCh. 12 - Prob. 7QCh. 12 - Prob. 8QCh. 12 - Prob. 9QCh. 12 - (Indicates a review question, which means it...Ch. 12 - Prob. 11QCh. 12 - Prob. 12QCh. 12 - (Indicates a review question, which means it...Ch. 12 - Prob. 14QCh. 12 - Prob. 15QCh. 12 - Prob. 16QCh. 12 - Prob. 17QCh. 12 - Prob. 18QCh. 12 - Prob. 19QCh. 12 - Prob. 20QCh. 12 - Prob. 21QCh. 12 - Prob. 22QCh. 12 - Prob. 23QCh. 12 - Prob. 24QCh. 12 - Prob. 25QCh. 12 - Prob. 26QCh. 12 - Prob. 27QCh. 12 - Prob. 28QCh. 12 - Prob. 29QCh. 12 - Prob. 30QCh. 12 - Prob. 31QCh. 12 - Prob. 32QCh. 12 - Prob. 33QCh. 12 - Prob. 34QCh. 12 - Prob. 35QCh. 12 - Prob. 36QCh. 12 - Prob. 37QCh. 12 - Prob. 38QCh. 12 - Prob. 39QCh. 12 - Prob. 40QCh. 12 - Prob. 41QCh. 12 - Prob. 42QCh. 12 - Prob. 43QCh. 12 - Prob. 44QCh. 12 - Prob. 1PCh. 12 - How fast would a muon have to be traveling...Ch. 12 - The lifetime of a free neutron is 886 s. If a...Ch. 12 - Prob. 4PCh. 12 - The formula for length contraction gives the...Ch. 12 - Prob. 6PCh. 12 - Prob. 7PCh. 12 - Prob. 8PCh. 12 - Prob. 9PCh. 12 - . In a particular beam of protons, each particle...Ch. 12 - . A particle of rest energy 140 MeV moves at a...Ch. 12 - . If the relativistic kinetic energy of a particle...Ch. 12 - Prob. 13PCh. 12 - Prob. 14PCh. 12 - Prob. 15PCh. 12 - . How many years would you have to wait to observe...Ch. 12 - Prob. 17PCh. 12 - Prob. 18PCh. 12 - . A compact neutron star has a mass of kg (about...Ch. 12 - Prob. 20PCh. 12 - Prob. 21PCh. 12 - Prob. 22PCh. 12 - Prob. 23PCh. 12 - Prob. 24PCh. 12 - Prob. 25PCh. 12 - Prob. 26PCh. 12 - Prob. 27PCh. 12 - Prob. 28PCh. 12 - Prob. 29PCh. 12 - Prob. 30PCh. 12 - Prob. 31PCh. 12 - . If the average lifetime of a proton was 1033...Ch. 12 - Prob. 1CCh. 12 - Prob. 2CCh. 12 - Prob. 3CCh. 12 - Prob. 4CCh. 12 - Prob. 5CCh. 12 - Prob. 6CCh. 12 - Prob. 7CCh. 12 - Prob. 8CCh. 12 - Prob. 9CCh. 12 - Prob. 10C
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- b) Neutral and charged pions decay in different ways: 7º → y + y and a → µ +ūµ. Which of the pions do you expect to have a longer life time and why? I need detailed answer with detailed explaation don't copy from anywherearrow_forwardThe decay of one type of K-meson is cited as evidence that nature favors matter over antimatter. Since mesons are composed of a quark and an antiquark, is it surprising that they would preferentially decay to one type over another? Is this an asymmetry in nature? Is the predominance of matter over antimatter an asymmetry?arrow_forwardCompute the momentum and energy of a top quark with a wavelength of 38nm. Energy: 5.216e-14 X Units: O Hertz (Hz) Joules (1) meters per second (m/s) O Kelvin (K) O parsecs (pc) Momentum: 1.743e-27 Units: O Joules per Kelvin (J/K) Joules seconds (J s) O meters per second (m/s) kilogram meter per second (kg m/s) X An un-named professor of quantum mechanics has a mass of 77kg. If he is running up the hall late to class at 3 m/s, what is his DeBroglie wavelength in meters? marrow_forward
- The only combination of quark colors that produces a white baryon isRGB. Identify all the color combinations that can produce a white meson.arrow_forwardAccording to the article Alien Antimatter Crashes into Earth e: 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 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 1,0 %3D times more energy than what's produced in the most powerful colliders on Earth. Let's compare this event to an ordinary baseball with a mass of 146 g. Please use three significant figures in your calculations.arrow_forwardIs it possible that some parts of the universe contain antimatter whose atoms have nuclei made of antiprotons and antineutrons, surrounded by positrons? How could we detect this condition without actually going there? Can we detect these antiatoms by identifying the light they emit as composed of antiphotons? Explain. What problems might arise if we actually did go there?arrow_forward
- choose the answer from the drop downarrow_forwardConservation Laws: State whether the following reactions are allowed or forbidden. If they are forbidden, state the reason(s). The quark contents of the charmed particles involved in the reaction are: the charmed hyperon A, is udc, the D+ meson is cd and the D- meson is ēd. Similarly, the beauty mesons below have quark content A, (udb) and B+ (ub). (i) + +P→ D¯ + Ac+nº B+ + A + ¯ (ii) +p (iii) K+p→K+ + E + (iv) + +pD+ + Ac+A+arrow_forward1. Given questions about reviewing the quark model a. With six different quark flavors, how many different meson pairings are possible? Let's say they come in the flavors u, d, c, s, t, and d. Please explain these combination ! b. With six different quark flavors, how many different Baryon pairings are possible? Let's say they come in the flavors u, d, c, s, t, and d. Please explain these combination !arrow_forward
- Determine the quark composition of the D0, D-, and D+ charmed mesons.arrow_forwardWhy does the n0 meson have such a short lifetime compared to most other mesons?arrow_forwardGive three (3) combinations of quarks (not antiquarks!) that will give baryons with the following charges. (Select all that apply.) (a) charge +1 O bbd st uub SS ucb ddt ctd (b) charge -1 O ssd ucs bbt cts bbb dsc bbs (c) charge 0 dds dsu SSC dsb ttd ddu ctbarrow_forward
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