Concept explainers
To explain: The possibility for the existence of antiatoms in some part of the universe, their detection, and the problems might arise if we actually did go there.
Answer to Problem 44.1DQ
There is possibility for the existence of antiatoms in the universe and their detection is not possible since their spectra will be the same as that of corresponding matter and the matter antimatter annihilation will result the destruction of our body if we actually go to a region of antimatter.
Explanation of Solution
The antiparticles bind with one another to form antimatter as exactly same as the ordinary particle bind to form the matter. If a positron and an antiproton bind together, the result will be an antihydrogen which can be considered the smallest antiatom. The physical principles indicate that in the universe, complex antimatter atomic nuclei composed of antiprotons and antineutrons are possible, as well as when they surrounded by positrons, the existence of antiatoms corresponding to the known chemical elements is also possible.
A specific method for the detection of the antimatter is not known since, if the neutral antiatoms do exist, their behavior will be exactly same as the normal atoms. So any spectra of an atom that given by the light that emit which composed of photons will be the same as the spectra that given by the antiatom, which composed of antiphotons. This is only because photon is its own antiparticle. So we cannot detect the antiatoms by identifying the light they emit as composed of antiphotons. The only way to identify the presence of antimatter is through their annihilation with matter. If we actually did go to the antimatter region the problem that might occur is that the annihilation of matter in our body with the antimatter in that region and thereby the complete destruction of our body.
Conclusion:
Thus, there is possibility for the existence of antiatoms in the universe and their detection is not possible since their spectra will be the same as that of corresponding matter and the matter antimatter annihilation will result the destruction of our body if we actually go to a region of antimatter.
Want to see more full solutions like this?
Chapter 44 Solutions
University Physics with Modern Physics (14th Edition)
- (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.arrow_forward(a) Do all particles having strangeness also have at least one strange quark in them? (b) Do all hadrons with a strange quark also have nonzero strangeness?arrow_forwardHow can quarks, which are fermions, combine to form bosons? Why must an even number combine to form a boson? Give one example by stating the quark substructure of a boson.arrow_forward
- 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?arrow_forwardOne of the decay modes of the omega minus is Ω− → Λ0 + K−..(a) What is the change in strangeness?(b) Verify that baryon number and charge are conserved,while lepton numbers are unaffected.(c) Write the equation in terms of the constituent quarks,indicating that the weak force is responsible.arrow_forward(a) A particle and its antiparticle are at rest relative to an observer and annihilate (completely destroying both masses), creating two γ rays of equal energy. What is the characteristic γ -ray energy you would look for if searching for evidence of proton-antiproton annihilation? (The fact thatsuch radiation is rarely observed is evidence that there is very little antimatter in the universe.) (b) How does this compare with the 0.511-MeV energy associated with electron-positron annihilation?arrow_forward
- Physics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPrinciples of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningModern PhysicsPhysicsISBN:9781111794378Author:Raymond A. Serway, Clement J. Moses, Curt A. MoyerPublisher:Cengage Learning
- College PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax CollegeCollege PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning