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Thomas Müller edited this page Aug 19, 2019 · 54 revisions

Writing Theses - some easy rules to improve the quality of the text

Language

  • Introduce every technical/physics/statistical/scientific/... term once and stick to this meaning throughout the entire thesis
  • Avoid synonyms: Use one, introduced term for once certain thing and repeat this term everywhere you want to talk about the same thing. Synonyms just confuse the reader, who might expect a subtle detail to be changed if the term is varied.
  • Avoid "lyric" or "bloomy" language. You write a clear scientific document and not a novel. Avoid every formulation, that only blows up the text but does not support its clearness.
  • Introduce and explain every symbol in formulae and do not vary symbols for the same things throughout the thesis.
  • Avoid CMS slang (e.g. "statistics" when you talk about statistical precision or sizes of datasets)
  • Prefer passive forms instead of e.g. "I/we do ..." or "a figure/table shows ..."
  • Get causalities right (also in the right order). E.g. in "thing A is like that because of reason B" the reason for A must really be B and not vice versa (or without clear dependency). You can avoid troubles with that by writing less sentences containing "because", "since" or "therefore".
  • Everything can be formulated positively. E.g. write "multiple approaches leading to the same results prove the robustness of the results" instead of "... show that the results are not wrong."
  • CMS Guidelines for Authors

Physics

  • Write understandable for colleagues that are on the level you where at the beginning of the time working on your thesis.
  • It helps to start with inserting the result plots and their captions in order to structure the result of the text to support the message you want to transfer with your results.
  • Write intruction and conclusion chapters at last, when it is absolutely clear, what you want to communicate. Put the most efforts in these chapters, which are always read.
  • Describe and evaluate your results. Do not leave the interpretation of results (formulae, figures, tables, ...) to the reader but show your understanding and expertise.
  • Describe and evaluate figures (and tables with results) in their captions to simplify a quick look over a large text (even professors do not read theses completely).
  • Get inspiration from previous theses in the same field regarding introductory chapters.

Technical aspects

  • Do not re-invent the wheel. Use common styles for citations, references, ...
  • Ask the colleague of choice for a Latex template.
  • Use latex commands for frequently used words like Standard Model, such that it is persistent. It is the easiest way to have standard model always with capital.

Good scientific practice

  • Every result, text, number, plot, sketch, work, ... must be clearly cited, that is taken over from others.
  • Citations for theoretical/statistical introductions: common text books
  • Citations for CMS chapters: technical design reports
  • Try to put only personal results (plots, numbers) in your main analysis chapters. Re-do plots (adapted to your needs) from group members/colleagues if necessary.

Analysis Notes

Analysis notes (ANs) can be surveyed and uploaded on the iCMS server. To survey ANs check the left box View CMS notes. To upload a new AN do the following:

  • click the link under Submission/New Note.
  • fill in the fields to your best knowledge.
  • you only can create a new note if you upload something. Adding an empty white page or the pdf set of slides is enough to initiate the process.
  • you will get a notification via mail that contains the Id of the note (usually in form AN-YY-NNN).
  • from that point on you are the only person allowed to upload new versions of this document.

To request an entry in the CMS svn server for CMS documents write an email to George Alverson containing the following information:

  • the ID of the AN.
  • the information you get from lxplus5 phonebook -A for each person that should have upload rights for the svn. Usually you get feedback within the next minutes that this repository has been created.

To download ANs from the CMS svn server for CMs documents to the following (for first download):

## login to lxplus, cd in a directory with enough disc space
svn co -N svn+ssh://svn.cern.ch/reps/tdr2 Notes
cd Notes
svn update utils
svn update -N notes
svn update notes/AN-YY-NNN

After the first download do the following:

## login to lxplus, cd in the directory Notes
eval `./notes/tdr runtime -sh` # for tcsh. use -csh for cshell
cd notes/AN-YY-NNN/trunk
## edit the template, then to build the document
tdr  --style=an b AN-YY-NNN
## use the following flag for to compile into a final document (w/o draft)
tdr --nodraft --style=an b AN-YY-NNN

It might be that this also works on your personal PC directly.

Instructions taken from KITHiggsAnalysisTWiki#AnalysisNotes

In order to upload a draft to iCMS, which is not connected to the SVN server, go to the iCMS server and then left to My Pending and Action on Analysis Notes under Submission. Then in the right part select your AN and click on Edit And Publish file to upload a PDF file.

General

How to analyse LHC data - Using a physics analysis as an example: presentation by Alex Nehrkorn

Theses

  1. Internal PhD, master and bachelor theses

  2. Sebastian Wozniewski (KIT, CMS)

  3. Stefan Wunsch (KIT, CMS)

  4. Martin Brenzke (RWTH, IceCube)

Tau trigger, reconstruction and identification

  1. Tau ID Performance at CMS in Run II with the 2016 pp Dataset

Higgs Combination / Combine Tool

  1. [Procedure for the LHC Higgs boson search combination in Summer 2011] (http://cdsweb.cern.ch/record/1379837/files/NOTE2011_005.pdf)

SM H->tautau

  1. Reconstruction of the Higgs mass in H→ττ Events by Dynamical Likelihood techniques (Svfit)
  2. Reconstruction of the Higgs mass in events with Higgs bosons decaying into a pair of τ leptons using matrix element techniques (Svfit)
  3. Observation of the Higgs boson decay to a pair of ττ leptons

Higgs Spin and CP (general)

  1. Higgs Spin and Parity: CMS publications, ATLAS publications
  2. Measurement of the properties of a Higgs boson in the four-lepton final state
  3. Handbook of LHC Higgs cross sections: 3. Higgs Properties

Higgs CP (initial state)

  1. Gluon-fusion contributions to Phi+2 jet production

  2. Constraining CP-violating Higgs sectors at the LHC using gluon fusion

  3. Test of CP Invariance in vector-boson fusion production of the Higgs boson using the Optimal Observable method in the ditau decay channel with the ATLAS detector

Higgs CP (final state)

  1. Prospects of constraining the Higgs CP nature in the tau decay channel at the LHC
  2. Determination of the Higgs CP-mixing angle in the tau decay channels
  3. Determination of the Higgs CP mixing angle in the tau decay channels at the LHC including the Drell-Yan background
  4. Higgs CP properties using the tau decay modes at the ILC
  5. Determination of the CP parity of Higgs bosons in their tau decay channels at the ILC

Z->tautau polarisation

  1. Measurement of the τ leptons polarization produced in Z^0 decay at CMS and determination of the effective weak mixing angle sin^2 θ^lep_eff
  2. Measurement of the tau polarisation in Z decays at the LHC
  3. Tau-Id performance to separate tau leptons with helicity +1 and -1 using τ → a1 ν → 3π± ν and τ → ρ ν → π± π0 ν decays

MadGraph (matrix elements, reweighting)

  1. The Higgs Characterisation model
  2. MadGraph Reweighting (FAQ)

Lepton Flavour Violation

  1. Search for Lepton Flavor Violation in Z decays in pp collisions at sqrt(s)=8 TeV
  2. Higgs Lepton Flavour Violating CMS publications

MSSM H->tautau

  1. Search for additional neutral MSSM Higgs bosons in the di-tau final state in pp collisions at sqrt(s) = 13 TeV
  2. (Analysis Note) Search for MSSM H/A to tautau using the full 2016 dataset

SM H->WW

  1. First results on Higgs to WW at √s=13 TeV
  2. Higgs to WW measurements with 15.2 fb−1 of 13 TeV proton-proton collisions
  3. (Analysis Note) Higgs Boson decaying to WW in the leptonic final state at 13 TeV
  4. (Analysis Note) Higgs to WW measurement at 13 TeV using full 2016 dataset

High mass H->WW

  1. Search for a Higgs boson in the mass range from 145 to 1000 GeV decaying to a pair of W or Z bosons
  2. Search for high mass Higgs to WW with fully leptonic decays using 2015 data
  3. (Analysis Note) Search for high mass resonances using WW with fully leptonic decays at 13 TeV
  4. (Analysis Note) Search for high mass resonances using WW with fully leptonic decays with 2016 data

General MSSM

  1. Summary results of high mass BSM Higgs searches using CMS run-I data
  2. MSSM Higgs Boson Searches at the LHC: Benchmark Scenarios after the Discovery of a Higgs-like Particle
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