Changes between Initial Version and Version 1 of Zprime

Timestamp:

Mar 20, 2012, 4:17:31 PM (13 years ago)

Author:

trac

Comment:

--

Zprime

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+
+
+== Z and Z' phenomenology at the LHC ==
+
+=== People ===
+
+        Valentin Hirshi, Fabio Maltoni, Francesco Tramontano
+
+=== Motivations ===
+
+        Many BSM models predict the existence of a parter of the Z with enhanced (suppressed) couplings to  heavy  (light) fermions. 
+This might entail a strong suppression of the production rates, as for the Higgs. We explore the idea that, as for the Higgs, the
+gluon gluon channel might actually provide the leading production channel. 
+
+=== Working plan ===
+
+  Phase I
+
+   * Verify (or not) Bij and Glover calculation  ([attachment:NPBnigel.pdf paper]). This can be done by explicit
+      comparison or by checking the decay results.
+   * Study the heavy top limit of the calculation and build the corresponding EFT. 
+   * Implement the EFT in Feynrules.
+   * Perform the calculation directly in the EFT and check the results.
+
+  Phase II
+
+   * Write a code (Mathematica or Fortran or C++) which calculates cross section at hadron colliders. 
+   * Study the NNNLO effects on the Z and Z' inclusive cross section (Fabio has a code for NNLO Z production).
+   * Implement the effective field theory in MadGraph and the full calculation correction.
+
+  Phase III
+ 
+   * Get to know the models which predict a fermiophobic Z' in detail.
+   * Construct a reasonable parameter space to be studied, including indirect constraints.
+   * Propose discovery channels at the LHC.
+
+  Phase IV
+ 
+   * Write the report and paper
+
+  Phase V
+
+   *  Book the flight to Stocholm
+
+
+=== Status and reports ===
+
+
+   * Here information on the status of the project is collected.
+
+
+