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Data Portfolio Activity: �TOTEM 1 & 2

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The LHC - CMS

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TOTEM

TOTal Elastic and diffractive cross-section Measurement

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Designed to study to take precise measurements of protons as they emerge from CMS’s collision point in the “forward” direction.

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DAP: TOTEM 2

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AAPT Winter 2017 – Atlanta, GA

Analyze your 2 data points

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Build histograms!!

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de Broglie Wavelength

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

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Calculate “d”

(“diameter” of proton) using diffraction:

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Calculate de Broglie Wavelength for proton

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Back to this: Calculate “d”

(“diameter” of proton) using diffraction:

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Calculations – 2 of 2

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Calculations – 1 of 2

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Extra slides….

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http://quarknet.i2u2.org

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TOTEM Data Express

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Post data to class-wide histogram

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Sample Data

Scattering Angle, micro-rads