Range of strong nuclear force

  1. A Cyberphysics Page
  2. 22.2 Nuclear Forces and Radioactivity
  3. particle physics
  4. Weak interaction
  5. 10.2: Properties of Nuclei
  6. Nuclear Force


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A Cyberphysics Page

• • About this site • Recommendations by examination boards • • Extras Index • General help pages • How to 'cite' this site • Practical Investigations - ISAs • Useful Links to other sites • Wide Reading - Science in the news. • Cyberphysics on You Tube • PowerPoints • Interactive XL Spreadsheets • Crosswords • • Site-User Index • Student • Teacher • Parent • Student Teacher • Teaching Assistant • • UK KS3 (Age 11-14) • KS3 Practice questions • GCSE and 'O' Level - UK KS4 (Age 14 - 16) • GCSE Practice questions • A Level and AS level - UK KS 5 (Age 16 - 18) • • A Level/Pre-U Practice questions • Exam Skills • Revision Aids • Practical Investigations • • The brain and thought processes • Intelligence and IQ • Left or Right Brain Dominance • Personality type and studying skills • What lesson style suits you? • 'Big Five' Personality Traits • Myers Briggs Type Indicator • LSI - Learning Style Inventory • S.T.R.I.P.E. • Honey and Mumford System • • Ways to keep in touch • E-mail contact form • FaceBook • Google+ • Twitter • You Tube • Cybercomputing - a 'sister' site • Cyber-Chess - a 'brother' site • Webscaping - our site designers The force responsible for holding all nucleons together is called the strong nuclear force. The strong nuclear interaction is the mechanism responsible for this force and the The The graph below shows how the strong nuclear force between nucleons varies as the separation of the nucleons increases. It also shows how the repulsion between two protons ...

22.2 Nuclear Forces and Radioactivity

Teacher Support The learning objectives in this section will help your students master the following standards: • (5) Science concepts. The student knows the nature of forces in the physical world. The student is expected to: • (H) describe evidence for and effects of the strong and weak nuclear forces in nature. • (8) Science concepts. The student knows simple examples of atomic, nuclear, and quantum phenomena. The student is expected to: • (B) compare and explain the emission spectra produced by various atoms; and • (C) describe the significance of mass-energy equivalence and apply it in explanations of phenomena such as nuclear stability, fission, and fusion. Section Key Terms Teacher Support [BL] [OL] [AL]As in the beginning of Section 1, have students create a list of facts they have learned about the atom. Have the students update their list throughout this section. There is an ongoing quest to find the substructures of matter. At one time, it was thought that atoms would be the ultimate substructure. However, just when the first direct evidence of atoms was obtained, it became clear that they have a substructure and a tiny nucleus. The nucleus itself has spectacular characteristics. For example, certain nuclei are unstable, and their decay emits radiations with energies millions of times greater than atomic energies. Some of the mysteries of nature, such as why the core of Earth remains molten and how the Sun produces its energy, are explained by nuclear phenomena. ...

particle physics

The equation describing the force due to gravity is $$F = G \frac.$$ • Is there a similar equation that describes the force due to the strong nuclear force? • What are the equivalent of masses/charges if there is? • Is it still inverse square or something more complicated? From the study of the spectrum of quarkonium (bound system of quark and antiquark) and the comparison with positronium one finds as potential for the strong force $$V(r) = - \dfrac$. So it is not as universal as eg. the gravity law in Newtonian gravity. $\begingroup$ @Johannes I edited your comma to a decimal dot - it was a bit confusing to English speakers - I'm assuming you mean "nought point four fm". Interestingly, in my own land, the Australian engineering drawing standard used to use a comma for the decimal marker too and I still do privately in handwritten calcs because a dot is too easy to lose track of - the silliest notation ever for something so significant as the decimal marker - I assume this is why Europe and eng. standards use the comma. However, I never use it in English language communication as it definitely confuses people. $\endgroup$ At the level of quantum hadron dynamics (i.e. the level of nuclear physics, not the level of particle physics where the real strong force lives) one can talk about a Yukawa potential of the form $$ V(r) = - \frac $$ where $m$ is roughly the pion mass and $g$ is an effective coupling constant. To get the force related to this you would take the derivative...

Weak interaction

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10.2: Properties of Nuclei

[ "article:topic", "authorname:openstax", "atomic mass", "atomic mass unit", "atomic nucleus", "atomic number", "chart of the nuclides", "isotopes", "mass number", "neutron number", "nucleons", "nuclide", "radius of a nucleus", "strong nuclear force", "license:ccby", "showtoc:no", "program:openstax", "licenseversion:40", "source@https://openstax.org/details/books/university-physics-volume-3" ] \( \newcommand\) • • • • • Learning Objectives By the end of this section, you will be able to: • Describe the composition and size of an atomic nucleus • Use a nuclear symbol to express the composition of an atomic nucleus • Explain why the number of neutrons is greater than protons in heavy nuclei • Calculate the atomic mass of an element given its isotopes The atomic nucleus is composed of protons and neutrons (Figure \(\PageIndex\): The atomic nucleus is composed of protons and neutrons. Protons are shown in blue, and neutrons are shown in red. Counts of Nucleons The number of protons in the nucleus is given by the atomic number, \(Z\). The number of neutrons in the nucleus is the neutron number, \(N\). The total number of nucleons is the mass number, \(A\). These numbers are related by \[A = Z + N. \nonumber \] A nucleus is represented symbolically by \[_Z^AX, \nonumber \] where \(X\) represents the chemical element, \(A\) is the mass number, and \(Z\) is the atomic number. For example, \(_6^C\) nucleus.) In atomic mass units, the mass of a helium nucleus ( A = 4) is approximate...

Nuclear Force

Nuclear Physics Christopher R. Gould, ... Philip J. Siemens, in Encyclopedia of Physical Science and Technology (Third Edition), 2003 IX.AGeneral Features Nuclear forces are, to a high degree of accuracy, charge independent. That is to say, except for the explicit electromagnetic part, the neutron–neutron, neutron–proton, and proton–proton interactions are equal—when compared in the same state. The nucleon–nucleon force is primarily central: the force acts along the line joining the nucleons, and the corresponding potential is a function only of the distance of separation of the nucleons. However, noncentral components are significant, and the interaction also depends on the relative orbital angular momentum and the relative orientation of the two nucleon spins. This dependence dominates when the nucleons are far apart. In fact, the interaction contains all of the complications allowed by the fundamental symmetries of nature. The central two-body potential decreases more rapidly than the r −1 Coulomb form. The long and intermediate range part of the potential is negative and attractive. This is responsible for nuclear binding. The short range part is positive and strongly repulsive; it is sometimes approximated by a hard (infinite) core of radius 0.4–0.5fm. The strong repulsion plays a crucial role in nuclear saturation. Read more Micro World Alexander Bolonkin, in Universe, Human Immortality and Future Human Evaluation, 2012 2.3Nucleus, Protons, Neutrons, Quarks, and Nucl...