750 GeV diphotons: implications for supersymmetric unification
750 GeV diphotons: implications for supersymmetric unification
复制标题
DOI：
10.1007/jhep03(2016)017
复制
发表时间：
2015-12
影响因子：
5.4
通讯作者：
L. Hall;K. Harigaya;Y. Nomura
中科院分区：
文献类型：
--
作者：
L. Hall;K. Harigaya;Y. Nomura
微扰超对称规范耦合统一在六种理论中是可能的，其中矢量物质的完整 SU (5) TeV 尺度多重态解释了所报道的 750 GeV 双光子共振的大小，解释为单重态多重态。其中之一具有完整的矢量物质生成和统一的规范耦合 α G∼ 1。矢量夸克和轻子的环增强了双光子信号速率，特别是当三线性 A 耦合很大时。如果不存在 SH u H d 耦合，则 s 和 a 都会对共振做出贡献，如果 s 和 a 的质量分裂是由矢量物质环引起的，则共振可能具有较大的表观宽度。宽度敏感地取决于 A 参数以及矢量夸克和轻子质量的相位。矢量夸克和/或夸克预计将在大型强子对撞机的范围内。如果存在 SH u H d 耦合，a 会导致窄双光子共振，而在未来的大型强子对撞机运行中可能会发现具有衰变 s→ hh、W+ W−、ZZ 的第二共振。在一些理论中，需要软参数的非标准起源或运行，例如涉及共形隐藏扇区交互。
Perturbative supersymmetric gauge coupling unification is possible in six theories where complete SU (5) TeV-scale multiplets of vector matter account for the size of the reported 750 GeV diphoton resonance, interpreted as a singlet multiplet. One of these has a full generation of vector matter and a unified gauge coupling α G∼ 1. The diphoton signal rate is enhanced by loops of vector squarks and sleptons, especially when the trilinear A couplings are large. If the SH u H d coupling is absent, both s and a can contribute to the resonance, which may then have a large apparent width if the mass splitting from s and a arises from loops of vector matter. The width depends sensitively on A parameters and phases of the vector squark and slepton masses. Vector quarks and/or squarks are expected to be in reach of the LHC. If the SH u H d coupling is present, a leads to a narrow diphoton resonance, while a second resonance with decays s→ hh, W+ W−, ZZ is likely to be discovered at future LHC runs. In some of the theories a non-standard origin or running of the soft parameters is required, for example involving conformal hidden sector interactions.