论文标题
为排除$ r_ {d^{（*）}} $异常的费用的希格斯解释
Towards ruling out the charged Higgs interpretation of the $R_{D^{(*)}}$ anomaly
论文作者
论文摘要
由臭名昭著的Lepton风味普遍性比率$ r_ {d^{（*）}} $的动机，我们研究了大型强子撞机（LHC）对低质量的Higgs boson $ higgs boson $ h^ - 比400美元的$ 400 \ $ GEV，$ 400的敏感性。从$ b_c \toτν$衰减，$ b_ {s} $混合数据，tau sleptons和di-jet搜索的当前约束结合，可以解释$ r_ {d^{（*）} $ andomaly在$ 1 \ $ 1 \，σ$ culve a flow-mass fall-mass fall-mass fall-mass fall-mass fill-mass fall-mass fall-masged higgs。在这种情况下，我们估计了LHC搜索共鸣$ H^ - $生产的范围，在该搜索中，最终状态包含一个充满活力的$τ$ Lepton衰变，具有大横向动量的中微子和额外的$ B $ -JET（$ b $ jet（$ pp \ to B +τ_h +ν$）。从抑制标准模型背景的$τν$共振搜索利润中需要额外的$ b $ tagged Jet，因此它允许我们判断$ r_ {d^{（*）}} $ ANOMALY的低质量$ h^ - $解释。为了证明这一点，我们对$τν$共振搜索进行了快速对撞机模拟，并使用额外的$ b $ tagged喷气机进行，发现整个质量范围的大多数有趣的参数区域都可以使用当前的集成亮度$ 139 \，$ fb $^{ - 1} $进行探测。
Motivated by the notorious anomaly in the lepton flavor universality ratios $R_{D^{(*)}}$, we study the sensitivity of the Large Hadron Collider (LHC) to a low-mass charged Higgs boson $H^-$ lighter than $400\,$GeV in a generic two Higgs doublet model. A combination of current constraints from the $B_c\toτν$ decay, $B_{s}$ meson mixing data, tau sleptons and di-jet searches at the LHC allows to explain the $R_{D^{(*)}}$ anomaly at the $1\,σ$ level by a low-mass charged Higgs. In this context, we estimate the reach of an LHC search for resonant $H^-$ production, where the final state contains an energetic $τ$ lepton decaying hadronically, a neutrino with large transverse momentum, and an additional $b$-jet ($pp \to b+τ_h + ν$). Requiring the additional $b$-tagged jet in the $τν$ resonance search profits from the suppression of the Standard Model background, and therefore it allows us to judge the low-mass $H^-$ interpretation of the $R_{D^{(*)}}$ anomaly. To demonstrate this, we perform a fast collider simulation for the $τν$ resonance search with an additional $b$-tagged jet, and find that most of the interesting parameter region of the whole mass range can already be probed with the current integrated luminosity of $139\,$fb$^{-1}$.
