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Higgs Pair Production at the LHC - Desy

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This Work<br />

Introduction<br />

Calcul<strong>at</strong>ions<br />

Numerical results<br />

Conclusion<br />

Aim: Calcul<strong>at</strong>ion of NLO QCD corrections to <strong>the</strong> following processes<br />

SM<br />

p p → H H Z<br />

p p → H H W +<br />

p p → H H W −<br />

MSSM<br />

H1 =<br />

MH =?<br />

„<br />

Φ =<br />

„ 1√2 (v1 + φ1 − iχ1)<br />

−φ −<br />

1<br />

„ «<br />

H<br />

= R(α)<br />

h<br />

„ « 0<br />

G<br />

= R(β)<br />

A<br />

„ φ1<br />

φ2<br />

„<br />

χ1<br />

φ +<br />

1<br />

√ 2 (v + H + iφ 0 )<br />

«<br />

, H2 =<br />

«<br />

, R(α) =<br />

χ2<br />

« „ ±<br />

G<br />

,<br />

H ±<br />

«<br />

„<br />

«<br />

,<br />

φ +<br />

2<br />

√<br />

1<br />

(v2 + φ2 + iχ2)<br />

2<br />

“ ”<br />

cos α sin α<br />

− sin α cos α ,<br />

„ ±<br />

φ<br />

= R(β) 1<br />

φ ±<br />

«<br />

2<br />

tan β = v2<br />

= ?, MA = ?, α = F(tanβ, MA, MW,MZ, . . . )<br />

v1<br />

Marina Billoni <strong>Higgs</strong> <strong>Pair</strong> <strong>Production</strong> <strong>at</strong> <strong>the</strong> <strong>LHC</strong><br />

«

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