.. _sphx_glr_auto_examples_Particle_Physics_plot_dchp2.py:


DCHP2
=====

Doubly Charged Higgs Production




.. image:: /auto_examples/Particle_Physics/images/sphx_glr_plot_dchp2_001.png
    :align: center





.. code-block:: python

    import matplotlib
    matplotlib.rcParams['mathtext.fontset'] = 'stix'
    matplotlib.rcParams['font.family'] = 'STIXGeneral'

    from feynman import Diagram

    fig = matplotlib.pyplot.figure(figsize=(10.,10.))
    ax = fig.add_axes([0,0,1,1], frameon=False)

    diagram = Diagram(ax)
    diagram.text(.4,0.9,"Doubly Charged Higgs Production", fontsize=40)
    q1in = diagram.vertex(xy=(.1,.75), marker='')
    q2in= diagram.vertex(xy=(.1,.25), marker='')
    v1 = diagram.vertex(xy=(.3,.75))
    v2 = diagram.vertex(xy=(.3,.25))
    vmerge = diagram.vertex(xy=(.6,.5))
    higgsout = diagram.vertex(xy=(.8,.5))
    q1pout = diagram.vertex(xy=(.95,.75), marker='')
    q2pout = diagram.vertex(xy=(.95,.25), marker='')
    l1out = diagram.vertex(xy=(.95,.62), marker='')
    l2out = diagram.vertex(xy=(.95,.38), marker='')

    lw = 5
    # Quarks
    q1 = diagram.line(q1in, v1, color='blue', lw=lw, arrow_param=dict(color='blue', length=0.08, width=0.02))
    q2 = diagram.line(q2in, v2, color='blue', lw=lw, arrow_param=dict(color='blue', length=0.08, width=0.02))
    q1p = diagram.line(v1, q1pout, color='blue', lw=lw, arrow_param=dict(color='blue', length=0.08, width=0.02))
    q2p = diagram.line(v2, q2pout, color='blue', lw=lw, arrow_param=dict(color='blue', length=0.08, width=0.02))
    diagram.text(.05, 0.75, "q", fontsize=40)
    diagram.text(.05, 0.25, "q",fontsize=40)
    diagram.text(0.98, 0.75, r"$\mathrm{q}^\prime$", fontsize=40)
    diagram.text(0.98, 0.25, r"$\mathrm{q}^\prime$",fontsize=40)

    # Bosons
    w1 = diagram.line(v1, vmerge, style='wiggly', color='green', lw=lw)
    w2 = diagram.line(v2, vmerge, style='wiggly', color='green', lw=lw)
    higgs = diagram.line(vmerge, higgsout, arrow=False, ls='dashed', lw=lw, dashes=(4, 2))
    diagram.text(0.35, 0.6, r"$W^+$", fontsize=40)
    diagram.text(0.35, 0.38, r"$W^+$", fontsize=40)
    diagram.text(0.72, 0.55, r"$H^{++}$", fontsize=40)

    # Leptons
    l1 = diagram.line(l1out, higgsout, color='blue', lw=lw, arrow_param=dict(color='blue', length=0.08, width=0.02))
    l2 = diagram.line(l2out, higgsout, color='blue', lw=lw, arrow_param=dict(color='blue', length=0.08, width=0.02))
    diagram.text(0.98, 0.62, r"$l^+$", fontsize=40)
    diagram.text(0.98, 0.38, r"$l^+$", fontsize=40)


    diagram.plot()
    matplotlib.pyplot.show()

**Total running time of the script:** ( 0 minutes  0.090 seconds)



.. only :: html

 .. container:: sphx-glr-footer


  .. container:: sphx-glr-download

     :download:`Download Python source code: plot_dchp2.py <plot_dchp2.py>`



  .. container:: sphx-glr-download

     :download:`Download Jupyter notebook: plot_dchp2.ipynb <plot_dchp2.ipynb>`


.. only:: html

 .. rst-class:: sphx-glr-signature

    `Gallery generated by Sphinx-Gallery <https://sphinx-gallery.readthedocs.io>`_