Study of $e^+e^-\to Υ(\rm1S,2S)η$ and $e^+e^-\to Υ(\rm 1S)η^{\prime}$ at $\sqrt{s}=10.866$ GeV with the Belle detector
Belle Collaboration, E. Kovalenko, A. Garmash, P. Krokovny, I. Adachi, H. Aihara, D. M. Asner, V. Aulchenko, T. Aushev, R. Ayad, V. Babu, S. Bahinipati, P. Behe… 展开作者
Belle Collaboration, E. Kovalenko, A. Garmash, P. Krokovny, I. Adachi, H. Aihara, D. M. Asner, V. Aulchenko, T. Aushev, R. Ayad, V. Babu, S. Bahinipati, P. Behera, J. Bennett, M. Bessner, T. Bilka, J. Biswal, A. Bobrov, A. Bondar, G. Bonvicini, A. Bozek, M. Bračko, T. E. Browder, M. Campajola, L. Cao, D. Červenkov, M. -C. Chang, B. G. Cheon, K. Chilikin, H. E. Cho, K. Cho, S. -J. Cho, S. -K. Choi, Y. Choi, S. Choudhury, D. Cinabro, S. Cunliffe, S. Das, G. De Nardo, F. Di Capua, Z. Doležal, T. V. Dong, S. Eidelman, D. Epifanov, T. Ferber, A. Frey, B. G. Fulsom, R. Garg, V. Gaur, N. Gabyshev, A. Giri, P. Goldenzweig, K. Gudkova, C. Hadjivasiliou, T. Hara, K. Hayasaka, W. -S. Hou, C. -L. Hsu, T. Iijima, K. Inami, A. Ishikawa, R. Itoh, M. Iwasaki, W. W. Jacobs, Y. Jin, K. K. Joo, G. Karyan, H. Kichimi, C. Kiesling, C. H. Kim, D. Y. Kim, K. -H. Kim, S. H. Kim, Y. -K. Kim, K. Kinoshita, P. Kodyš, T. Konno, A. Korobov, S. Korpar, P. Križan, R. Kroeger, T. Kuhr, M. Kumar, R. Kumar, K. Kumara, A. Kuzmin, Y. -J. Kwon, K. Lalwani, J. S. Lange, S. C. Lee, Y. B. Li, L. Li Gioi, J. Libby, K. Lieret, D. Liventsev, C. MacQueen, M. Masuda, T. Matsuda, D. Matvienko, M. Merola, F. Metzner, K. Miyabayashi, R. Mizuk, G. B. Mohanty, M. Nakao, A. Natochii, L. Nayak, M. Niiyama, N. K. Nisar, S. Nishida, K. Ogawa, S. Ogawa, H. Ono, P. Oskin, P. Pakhlov, G. Pakhlova, S. Pardi, H. Park, S. -H. Park, S. Patra, S. Paul, T. K. Pedlar, R. Pestotnik, L. E. Piilonen, T. Podobnik, E. Prencipe, M. T. Prim, A. Rabusov, M. Röhrken, A. Rostomyan, N. Rout, G. Russo, D. Sahoo, S. Sandilya, A. Sangal, T. Sanuki, V. Savinov, G. Schnell, C. Schwanda, Y. Seino, K. Senyo, M. E. Sevior, C. Sharma, J. -G. Shiu, B. Shwartz, A. Sokolov, E. Solovieva, M. Starič, Z. S. Stottler, M. Sumihama, T. Sumiyoshi, W. Sutcliffe, M. Takizawa, U. Tamponi, K. Tanida, F. Tenchini, K. Trabelsi, M. Uchida, T. Uglov, Y. Unno, K. Uno, S. Uno, P. Urquijo, Y. Usov, R. Van Tonder, G. Varner, A. Vinokurova, E. Waheed, C. H. Wang, M. -Z. Wang, P. Wang, M. Watanabe, O. Werbycka, E. Won, W. Yan, S. B. Yang, H. Ye, J. H. Yin, Y. Yusa, Z. P. Zhang, V. Zhilich, V. Zhukova
We report the first observation of the processes $e^+e^-\toΥ(\rm 1S,2S)η$ at $\sqrt{s}=10.866$~GeV with a $10.2σ$ and $16.5σ$ significance respectively. The measured Born cross sections are $σ(e^+e^- \to Υ(2S)η)=2.07 \pm 0.21 \pm 0.19$~pb, and $σ(e^+e^- \to Υ(\rm 1S)η)=0.42 \pm 0.08 \pm 0.04$~pb. We also set the upper limit on the cross section of the process $e^+e^- \to Υ(\rm 1S)η^{\prime}$ to be $σ(e^+e^- \to Υ(\rm 1S)η^{\prime})<0.035$~pb at $90\%$ CL. The results are obtained with the data sample collected with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider in the energy range from $10.63$~GeV to $11.02$~GeV.
Belle II是Belle实验的重大升级，在日本的$B$工厂SuperKEKB运行。由于SuperKEKB对撞机的设计光度为8 $\;\times\;$ 10 $^{35}$ cm $^{-2}$ s $^{-1}$，大约是KEKB的40倍，Belle II的目标是在8年内收集50 ab $^{-1}$的数据。用于物理分析的第一次数据采集运行已于2018年4月开始，亮度低于用于调试目的的设计亮度。即使使用早期的数据集，具有高达20 fb $^{-1}$的积分亮度，Belle II也可以改善暗区领域的当前结果。在本文中，我们将提出预期的Belle II的不可见衰减的暗光子，类轴子粒子和不可见衰减的$Z^{\prime}$假设$L_μ-L_τ$模型的灵敏度。
Search for dark matter production in association with the Z$^{\prime}$ boson at the LHC in pp collisions at $\sqrt{s}$ = 8 TeV using Monte Carlo simulations
Charged current $b \to c τ\barν_τ$ anomalies in a general $W^\prime$ boson scenario
从Belle实验获得的最新实验信息，以及BABAR和LHCb实验积累的信息，都表明了与带电电流跃迁$b \to c τ\barν_τ$相关的$R(D)$和$R(D^{*})$比值中存在异常。尽管Belle的测量结果与标准模型（SM）的预测一致，但新的实验世界平均值仍然表现出紧张。此外，由Belle协作组观察到的与通道$B \to D^\ast τ\barν_τ$相关的$D^\ast$纵向极化$F_L(D^\ast)$和由LHCb协作组测量的比率$R(J/ψ)$也显示出与它们相应的SM估计的差异。我们提出了一个模型独立的研究的基础上，最一般的有效拉格朗日产生树级的有效贡献的过渡$b \to c τ\barν_τ$诱导的一般$W^\prime$玻色子。而不是考虑任何特定的新物理（NP）实现，我们进行了分析，考虑所有不同的手征电荷的魅力底部和$τ$ - $ν_τ$相互作用项与带电$W^\prime$玻色子解释的异常。我们提出了一个唯象的参数空间的研究允许新的实验$b \to c τ\barν_τ$数据和单tau签名$pp \to τ_h X + \rm{MET}$在大型强子对撞机。为了比较，我们包括一些$W^\prime$玻色子NP实现，已经在文献中研究。
Measurement of the $ZZ$ production cross section in $pp$ collisions at $\sqrt{s}$ = 8 TeV using the $ZZ\to\ell^{-}\ell^{+}\ell^{\prime -}\ell^{\prime +}$ and $ZZ\to\ell^{-}\ell^{+}ν\barν$ channels with the ATLAS detector
Search for vector-boson resonances decaying to a top quark and bottom quark in the lepton plus jets final state in $pp$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector
Search for a new heavy gauge boson resonance decaying into a lepton and missing transverse momentum in 36 fb$^{-1}$ of $pp$ collisions at $\sqrt{s} =$ 13 TeV with the ATLAS experiment
Search for resonant $WZ \rightarrow \ellν\ell^{\prime}\ell^{\prime}$ production in proton$-$proton collisions at $\mathbf{\sqrt{s} = 13}$ TeV with the ATLAS detector
Search for Minimal Supersymmetric Standard Model Higgs bosons $H/A$ and for a $Z^{\prime}$ boson in the $ττ$ final state produced in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS Detector
Search for resonances decaying into a weak vector boson and a Higgs boson in the fully hadronic final state produced in proton$-$proton collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector
Search for additional heavy neutral Higgs and gauge bosons in the ditau final state produced in 36 fb$^{-1}$ of $pp$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector
Search for heavy resonances decaying to a $W$ or $Z$ boson and a Higgs boson in the $q\bar{q}^{(\prime)}b\bar{b}$ final state in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector
Measurement of $WW/WZ \to \ell νq q^{\prime}$ production with the hadronically decaying boson reconstructed as one or two jets in $pp$ collisions at $\sqrt{s}=8$ TeV with ATLAS, and constraints on anomalous gauge couplings
Search for the production of dark matter candidates in association with heavy dimuon resonance using the CMS open data for pp collisions at $\sqrt{s}$ = 8 TeV
Search for dark matter in events with a hadronically decaying vector boson and missing transverse momentum in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector
Search for the production of dark matter in the framework of Mono-Z$^{\prime}$ portal at the ILC simulated electron-positron collisions at $\sqrt{s} = 500$ GeV
Search for the production of dark fermion candidates in association with heavy neutral gauge boson decaying to dimuon in proton-proton collisions at $\sqrt{s} = 8$ TeV using the CMS open data
