论文标题
$ u（1）_ {b_3-l_2} $说明中性当前$ b- $异常
$U(1)_{B_3-L_2}$ Explanation of the Neutral Current $B-$Anomalies
论文作者
论文摘要
我们研究了一种投机性短途力量，该力量是为了解释某些中性衰减的$ B $ HADRON的测量值与其标准模型预测之间观察到的差异。该力源自自发损坏的$ u（1）_ {b_3-l_2} $扩展到标准模型，其中额外的标准模型字段的额外量子数量由第三个家庭baryon number Minus第二家族Lepton编号给出。超出标准模型的唯一字段是三个右中微子，这是一个与$ u（1）_ {b_3-l_2} $相关的量规字段和一个标准模型单元组复合体标量，它破坏$ u（1）_ {b_3-l_2} $，a“ flavon'。这种简单的模型通过涉及涉及TEV量表的$ z^\ prime $ vector玻色子的交互，可以成功解释中性的当前$ b-$异常，同时适应其他经验约束。在安萨斯（Ansatz）用于费米昂混合的情况下，最新的$ b- $异常组合，LHC直接$ z^\ prime $搜索限制和其他界限排除了域0.15 tev $ <m_ {z^\ prime} <$ 1.9 <$ 1.9 tev <$ 1.9 tev在95 $ \％$ pusits水平上。对于更大的$ z^\ prime $ s，该型号具有{\ em flavonstrahung} \信号，其中$ pp $碰撞会产生$ z^\ prime $和flavon，随后腐烂了两个higgs玻色子。
We investigate a speculative short-distance force, proposed to explain discrepancies observed between measurements of certain neutral current decays of $B$ hadrons and their Standard Model predictions. The force derives from a spontaneously broken, gauged $U(1)_{B_3-L_2}$ extension to the Standard Model, where the extra quantum numbers of Standard Model fields are given by third family baryon number minus second family lepton number. The only fields beyond those of the Standard Model are three right-handed neutrinos, a gauge field associated with $U(1)_{B_3-L_2}$ and a Standard Model singlet complex scalar which breaks $U(1)_{B_3-L_2}$, a `flavon'. This simple model, via interactions involving a TeV scale force-carrying $Z^\prime$ vector boson, can successfully explain the neutral current $B-$anomalies whilst accommodating other empirical constraints. In an ansatz for fermion mixing, a combination of up-to-date $B-$anomaly fits, LHC direct $Z^\prime$ search limits and other bounds rule out the domain 0.15 TeV$< M_{Z^\prime} <$ 1.9 TeV at the 95$\%$ confidence level. For more massive $Z^\prime$s, the model possesses a {\em flavonstrahlung}\ signal, where $pp$ collisions produce a $Z^\prime$ and a flavon, which subsequently decays into two Higgs bosons.
