关于$\it NN$ -去偶重子$d^\ast_1$的存在性（1956）
On the existence of the $\it NN$-decoupled dibaryon $d^\ast_1$(1956)
摘要：
我们提出了强有力的实验证据，存在一个非奇异的$\it NN$ -解耦的重子，质量约为1956兆电子伏稳定的强衰变，这是一个非常有可能的候选人长期寻求的多夸克强子的重子数B=2。首先，我们提出了第一个证据，证明这种被称为$d^{\ast }_{1}$（1956）的重子的存在，它是在JINR测量的能量为216 MeV的$pp \to pp γγ$反应在$\pm 90^0$发射的符合光子的能谱中发现的。然后，我们发现在几个实验中的单光子的能量谱和不变的质量谱的光子对的光子产生过程引起的核子核子和核子核碰撞在中间能量的签名。
英文摘要：
We present strong experimental evidence for the existence of a nonstrange $\it NN$-decoupled dibaryon with a mass of about 1956 MeV stable against strong decay, which is a very likely candidate for long-sought multiquark hadrons with the baryon number B=2. We start by presenting the first evidence for the existence of this dibaryon called $d^{\ast }_{1}$(1956), that was found in the energy spectrum of coincident photons emitted at $\pm 90^0$ from the reaction $pp \to pp γγ$ at an energy of 216 MeV measured at JINR. We then show its signatures found in several experimental energy spectra of single photons and invariant mass spectra of photon pairs from photon production processes induced by nucleon-nucleon and nucleon-nucleus collisions at intermediate energies.
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