rection.
<p>
For practical reasons the properties of all elements of the LHC are defined in the MADX input as if
they apply to a clockwise proton beam ("LHC beam 1"). This allows a single definition for elements
traversed by both beams. Their effects on a beam with identical particle charge but running in the
opposite direction ("LHC beam 2") must then be reversed inside the program.
<p>
In MADX this may be taken into account by setting the value of the <b>BV</b> attribute in the
<b>Beam</b> commands. In th