STOP-ANTISTOP AND SBOTTOM-ANTISBOTTOM PRODUCTION AT LHC: A ONE-LOOP SEARCH FOR MODEL PARAMETERS DEPENDENCE

被引：25

作者：

Beccaria, M. ^{[1
,2
]}

Macorini, G. ^{[3
,4
]}

Panizzi, L. ^{[3
,4
]}

Renard, F. M. ^{[5
]}

Verzegnassi, C. ^{[3
,4
]}

机构：

[1] Univ Salento, Dipartimento Fis, Salento, Italy

[2] Ist Nazl Fis Nucl, Sez Lecce, Lecce, Italy

[3] Univ Trieste, Dipartimento Fis Teor, I-34127 Trieste, Italy

[4] Ist Nazl Fis Nucl, Sez Trieste, Trieste, Italy

[5] Univ Montpellier 2, Lab Phys Theor & Astroparticules, F-34095 Montpellier 5, France

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS A | 2008年 / 23卷 / 30期

关键词：

Supersymmetry; stop; sbottom; mSUGRA; one-loop electroweak corrections; LHC;

D O I：

10.1142/S0217751X08041694

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We have computed the one-loop electroweak expression of diagonal and nondiagonal stop-antistop and sbottom-antisbottom production from initial state gluons at LHC. We have investigated the possibility that the one-loop effects exhibit a dependence on "extra" supersymmetric parameters different from the final squark masses. Our results, given for a choice of twelve SUSY benchmark points in the MSSM with mSUGRA symmetry breaking, show that in some cases a mild dependence might arise, at the percent relative level, of not simple experimental detection.

引用

页码：4779 / 4810

页数：32

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