Radiation astronomy/Mesons/Quiz

< Radiation astronomy < Mesons
Event display from the CMS experiment shows examples of collisions that produced candidates for the rare decay of the Bs0 meson. Credit: CMS Collaboration.

Meson astronomy is a lecture and an article from the astronomy department. It is currently under development for possible inclusion in the advanced astronomy course: principles of radiation astronomy.

“The discovery [recorded in the event display on the right] came about when two Large Hadron Collider (LHC) experiments recently combined their results and found overwhelming evidence of an extremely rare decay of a particle known as the Bs0 meson.”[1]

The rare decay of the Bs0 meson is into two muons.[1]

"Bs0 mesons oscillate between their matter and their antimatter counterparts, a process first discovered at Fermilab in 2006."[1]

You are free to take this quiz based on meson astronomy at any time.

To improve your score, read and study the lecture, the links contained within, listed under See also, and in the course and astronomy resources template. This should give you adequate background to get 100 %.

As a "learning by doing" resource, this quiz helps you to assess your knowledge and understanding of the information, and it is a quiz you may take over and over as a learning resource to improve your knowledge, understanding, test-taking skills, and your score.

A suggestion is to have the lecture available in a separate window.

To master the information and use only your memory while taking the quiz, try rewriting the information from more familiar points of view, or be creative with association.

Enjoy learning by doing!

Quiz

Point added for a correct answer:   
Points for a wrong answer:
Ignore the questions' coefficients:

1. Yes or No, A meson is a subatomic particle that is intermediate in mass between an electron and a proton.

Yes
No

2. True or False, Like all elementary particles, the meson has a corresponding antiparticle of opposite spin but equal mass and charge.

TRUE
FALSE

3. What negatively charged particles may be used as tracers of cosmic magnetic fields?

4. True or False, The radius of the proton is 4 percent smaller than previously estimated.

TRUE
FALSE

5. Yes or No, Each type of meson has a corresponding antiparticle (antimeson).

Yes
No

6. Complete the text:

Charged-current charged pion production is a process in which a interacts with an atomic and produces a , a charged and recoiling nuclear fragments.

7. True or False, The phenomenology of cosmic ray cascades reflects in an essential way processes governed by the weak force.

TRUE
FALSE

8. Complete the text:

Muons are produced, along with other particles, when interact with in the Earth's atmosphere to produce of secondary particles.

9. True or False, Mesons inherit the high energy of the parent cosmic rays.

TRUE
FALSE

10. Yes or No, A meson apparently transmits the strong interaction that binds nucleons together in the atomic nucleus.

Yes
No

Your score is 0 / 0

Research

Hypothesis:

  1. Proving mesons are occurring astronomically requires demonstrating that products of such reactions exist.

Control groups

This is an image of a Lewis rat. Credit: Charles River Laboratories.

The findings demonstrate a statistically systematic change from the status quo or the control group.

“In the design of experiments, treatments [or special properties or characteristics] are applied to [or observed in] experimental units in the treatment group(s).[2] In comparative experiments, members of the complementary group, the control group, receive either no treatment or a standard treatment.[3]"[4]

Proof of concept

Def. a “short and/or incomplete realization of a certain method or idea to demonstrate its feasibility"[5] is called a proof of concept.

Def. evidence that demonstrates that a concept is possible is called proof of concept.

The proof-of-concept structure consists of

  1. background,
  2. procedures,
  3. findings, and
  4. interpretation.[6]

See also

References

  1. 1 2 3 Sheldon Stone (14 May 2015). "CERN Physicists Confirm Existence of Bs0 Meson". Sci-News.com. Retrieved 2015-11-12.
  2. ↑ Klaus Hinkelmann, Oscar Kempthorne (2008). Design and Analysis of Experiments, Volume I: Introduction to Experimental Design (2nd ed.). Wiley. ISBN 978-0-471-72756-9. http://books.google.com/?id=T3wWj2kVYZgC&printsec=frontcover.
  3. ↑ R. A. Bailey (2008). Design of comparative experiments. Cambridge University Press. ISBN 978-0-521-68357-9. http://www.cambridge.org/uk/catalogue/catalogue.asp?isbn=9780521683579.
  4. ↑ "Treatment and control groups, In: Wikipedia". San Francisco, California: Wikimedia Foundation, Inc. May 18, 2012. Retrieved 2012-05-31.
  5. ↑ "proof of concept, In: Wiktionary". San Francisco, California: Wikimedia Foundation, Inc. November 10, 2012. Retrieved 2013-01-13.
  6. ↑ Ginger Lehrman and Ian B Hogue, Sarah Palmer, Cheryl Jennings, Celsa A Spina, Ann Wiegand, Alan L Landay, Robert W Coombs, Douglas D Richman, John W Mellors, John M Coffin, Ronald J Bosch, David M Margolis (August 13, 2005). "Depletion of latent HIV-1 infection in vivo: a proof-of-concept study". Lancet 366 (9485): 549-55. doi:10.1016/S0140-6736(05)67098-5. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1894952/. Retrieved 2012-05-09.

External links

This is a research project at http://en.wikiversity.org

Development status: this resource is experimental in nature.
Educational level: this is a research resource.
Resource type: this resource is a quiz.
Subject classification: this is an astronomy resource.
This article is issued from Wikiversity - version of the Monday, February 01, 2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.