Warning: foreach() argument must be of type array|object, bool given in /var/www/html/web/app/themes/studypress-core-theme/template-parts/header/mobile-offcanvas.php on line 20

(a) What particle has the quark composition uยฏuยฏdยฏ?

(b) What should its decay mode be?

Short Answer

Expert verified

(a) The particle having the quark compositionuยฏuยฏdยฏis an antiproton.

(b) The decay mode of antiproton should be ฯ€0+eโˆ’.

Step by step solution

01

Concept Introduction

A quark is a basic ingredient of matter and a sort of elementary particle.

Antiquarks are the antiparticles that correspond to each flavour of quark.

02

Particle with quark composition uยฏuยฏdยฏ

(a)

From the table33.4, we can see that the quark composition of a proton is given byp=uud; and since antibaryons have the antiquarks of their counterparts, then the antiproton is given bypยฏ=uยฏuยฏdยฏ.

Therefore, the particle is an antiproton.

03

Decay mode of Antiproton

(b)

Proton particle decay as follows;

pโ†’ฯ€0+e+

Anti particle will decay as follows;

pโ€•โ†’ฯ€0+eโˆ’

Therefore the decay mode antiproton is pโ€•โ†’ฯ€0+eโˆ’.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Consider a detector needed to observe the proposed, but extremely rare, decay of an electron. Construct a problem in which you calculate the amount of matter needed in the detector to be able to observe the decay, assuming that it has a signature that is clearly identifiable. Among the things to consider are the estimated half-life (long for rare events), and the number of decays per unit time that you wish to observe, as well as the number of electrons in the detector substance.

When an electron and positron collide at the SLAC facility, they each have 50.0GeV kinetic energies. What is the total collision energy available, taking into account the annihilation energy? Note that the annihilation energy is insignificant, because the electrons are highly relativistic.

What are the advantages of colliding-beam accelerators? What are the disadvantages?

The primary decay mode for the negative pion ฯ€โˆ’โ†’ฮผโˆ’+ฯ…ยฏฮผ.

(a) What is the energy release in MeV in this decay?

(b) Using conservation of momentum, how much energy does each of the decay products receive, given the ฯ€โˆ’ is at rest when it decays? You may assume the muon antineutrino is massless and has momentum p=Eฮฝc, just like a photon.

(a) How much energy would be released if the proton did decay via the conjectured reaction pโ†’ฯ€0+e+?

(b) Given that the ฯ€0 decays to two ฮณs and that the e+ will find an electron to annihilate, what total energy is ultimately produced in proton decay?

(c) Why is this energy greater than the protonโ€™s total mass (converted to energy)?

See all solutions

Recommended explanations on Physics Textbooks

View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free