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PHYS 342 Modern Physics Project Discussion III

Today's Projects for Discussion:

a) Study a particle accelerators ‐‐ Large Hadron Collider (LHC) b) Search for Dark Matter

The projects that have been chosen so far include 36 people,13 teams.

1. Stevie Bastin, Stjepan Kraljic, Zack Rowe,  Gravitational wave/gravitons2. Lifu Wang, Weiyuan Deng, and Yufeng Zhang, Modern Experiment to Test Special 

Relativity3.Uladzimir Kasacheuski, Jonathan Brown,  and Vishal Patel, interview researchers at IUPUI4. Zongying Xu, Zheng Huang , and Jiani Xie, Blackbody Radiation5. Chuanyi Chen, Zihao Fu,  and Lingbin Meng, Introduction to General Relativity6. Hongkun Zhu, Guiming Chen,  and Jiawen Wang,  First gravitational wave observation7. Aaron,  Joseph, and Will,  atomic physics explanation of the helium laser 8. Daulton Eaton, Robert McKay,  and Guy Wiss, Monte Carlo Simulation Method for the 

Schrodinger equation9. Tianyang Wu, Haizhen Xie, and Bingcheng Zhou,  Neutrino physics10. Josiah Alstott, Thomas Freestone, and Ross Wallgren , Atomic  clock11. Chase Howard and Alex Canner,  Gravitational lensing12.  Kailiang Chen, Zhong Jin, Peiming Zhu, Quantum Information13. Ryan, Particle Acclerator ‐ LHC

You must email/give me your electronic version of .ppt or report (.doc, .pdf) before Apr.15 to secure a presentation time slot.

https://www.paperrater.com/plagiarism_checker

So far, So Good, expect 2/3 get >=B+

Bottom Line: We already have 413 points, only ~300 points left. You need at least 420 points in the end to safely pass.

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Large Hadron Collider (LHC)

Large Hadron Collider (LHC)

Projects:  You need to write a short review about the history of LHC and the problems that LHC will address. You also need to introduce  the basic structure and instrumentation of LHC. You can also introduce the recent discoveries found by LHC and the future plan of LHC.

http://home.web.cern.ch/topics/large-hadron-collider

https://www.youtube.com/watch?v=debQ60QVtYQ

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Big Bang

https://www.youtube.com/watch?v=VOz4PkdY7aAThe beginning of the universe

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Problems that LHC will address

Higgs Boson

https://www.youtube.com/watch?v=1_HrQVhgbeoThe God Particle: The Higgs Boson

https://www.youtube.com/watch?v=RIg1Vh7uPyw

Use water to understand the Higgs Boson

Projects for Discussion

Today's Projects for Discussion:

a) Study a Particle accelerators ‐‐ Large Hadron Collider (LHC) b) Search for Dark Matterc) Project selected by you! 

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In Ursa Major constellation. Distance is 30 million light years. For comparison, distance from Earth to the galactic center is a factor of ~1000 times less.

30 millions light years

Unknown Matter in the Universe

http://antwrp.gsfc.nasa.gov/apod

Horsehead Nebula. Pink background is hydrogen emission from IC434 emission.

Question: Is the mass in the universe all observable throughemission or absorption of electromagnetic radiation?

Dark Matter...is matter that does not shine or absorb light, and has therefore escaped direct detection by electromagnetictransducers like telescopes, radio antennas, x-ray satellites...

There is strong experimental evidence that there is more dark matter than luminous matter in the universe !

Search for Dark Matter Search for Dark Matter

Projects:  You need to write a short review about the search for dark matter. You need to introduce the evident of existing dark matter in the universe,  the possible candidates for dark matter, and how physicist detect dark matter in ongoing projects. 

http://science.nasa.gov/astrophysics/focus-areas/what-is-dark-energy/

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Examples of Rotation Curves DM Evidence IRotation Curves for Our Galaxy

The Correct Way to Think about Our Galaxy

Gravitational Microlensing

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DM Evidence II Gravitational Lensing in Clusters of Galaxies Microlensing Targets

Large Magellanic Cloud Small Magellanic Cloud

Possible Dark-Matter Candidates

Dark matter elastically scatters off nuclei

Nuclear recoils detected by phonons, scintillation, ionization, …, …

e,

DM

DIRECT DETECTION

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Neutrinos as Nonbaryonic Dark Matter

Superkamiokande, an Example of a Neutrino Observatory

About 100 neutrinos per cubic cm, throughout space.

Mass is about 0.05 eV = 1 / 10,000,000 mass of electron, although some uncertainty.

Neutrinos in the Universe have nearly as much mass as all of the stars!

Other Types of NonbaryonicDark Matter

XENON Dark Matter Detector

Large Hadron Collider at CERN

The LHC will search forsupersymmetric and other new subatomic particles.

X-ray Evidence for Dark Matter in Clusters of Galaxies

Need enough gravityto keep the X-ray gasfrom “boiling off” intointergalactic space.

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Dark Matter

Dark Matter

https://www.youtube.com/watch?v=yn24jK743gU

The most powerful machine: for people love experiments

https://www.youtube.com/watch?v=CwHH2mymUdI