用CMS探测器首次测量了$\sqrt{s_\mathrm{NN}} =$ 5.02 TeV超周边pPb碰撞中$ρ^0$（770）的光生.在$\langle W_{γ\mathrm{p}}\rangle =$ 92.6 GeV处，光子-质子质心能量$W_{γ\mathrm{p}}$在29和213 GeV之间时，截面$σ(γ$ p $\to$ $ρ^0$（770）p）为11.0 $\pm$ 1.4（stat）$\pm$ 1.0（syst）$μ$ b。微分截面d $σ/$ d $|t|$是在0.025 $< |t| < 1$ GeV $^{2}$的区间内测量的，作为$W_{γ\mathrm{p}}$的函数，其中$t$是质子顶点处四动量转移的平方。结果与以前的测量和理论预测进行了比较。测得的横截面$σ(γ$ p $ \to ρ^0$（770）p）与光子-质子质心具有幂律依赖性，与HERA进行的电子-质子碰撞测量一致。还测量了微分截面d $σ/$ d $|t|$的指数斜率的$W_{γ\mathrm{p}}$依赖性。
英文摘要：
Exclusive $ρ^0$(770) photoproduction is measured for the first time in ultraperipheral pPb collisions at $\sqrt{s_\mathrm{NN}} =$ 5.02 TeV with the CMS detector. The cross section $σ(γ$p $\to$ $ρ^0$(770)p) is 11.0 $\pm$ 1.4 (stat) $\pm$ 1.0 (syst) $μ$b at $\langle W_{γ\mathrm{p}}\rangle =$ 92.6 GeV for photon-proton centre-of-mass energies $W_{γ\mathrm{p}}$ between 29 and 213 GeV. The differential cross section d$σ/$d$|t|$ is measured in the interval 0.025 $< |t| < 1$ GeV$^{2}$ as a function of $W_{γ\mathrm{p}}$, where $t$ is the squared four-momentum transfer at the proton vertex. The results are compared with previous measurements and theoretical predictions. The measured cross section $σ(γ$ p$ \to ρ^0$(770)p) has a power-law dependence on the photon-proton centre-of-mass, consistent with electron-proton collision measurements performed at HERA. The $W_{γ\mathrm{p}}$ dependence of the exponential slope of the differential cross section d$σ/$d$|t|$ is also measured.
Nuclear effects in photoproduction of heavy quarks and vector mesons in ultraperipheral PbPb and pPb collisions at the LHC
通过比较$c\bar{c}$和b-b（bar）在PbPb和pPb碰撞中的光生截面，可以得到对核遮蔽效应的敏感性.光生矢量介子对底层胶子的分布更为敏感。本文研究了在sqrt（s_NN）=5 TeV和sqrt（s_NN）=2.76 $ TeV, respectively. The potentials of using these processes for constraining nuclear gluon shadowing are explored. It is found that photoproduction of $ J/J条件下，在大型强子对撞机上进行的超周边pPb和PbPb碰撞中，重夸克光生和矢量介子光生的截面及其与快度的关系。特别是PbPb碰撞中的$ and $对胶子遮蔽表现出很好的敏感性。
Double D meson production in ultraperipheral $pp$, $pPb$ and $PbPb$ collisions
Institute of Modern Physics, Chinese Academy of Sciences（中国科学院近代物理研究所）；University of Chinese Academy of Sciences（中国科学院大学）；State Key Laboratory of Heavy Ion Science and Technology, Institute of Modern Physics, Chinese Academy of Sciences（中国科学院近代物理研究所重离子科学和技术国家重点实验室）；Institute of Physics and Mathematics, Federal University of Pelotas（巴利亚联邦大学物理与数学研究所）
Incoherent $ρ$ meson photoproduction in ultraperipheral nuclear collisions at the LHC
利用Gribov-Glauber模型的光子-核散射和广义矢量介子模型的光子强子结构，对大型强子对撞机中Pb-Pb超周边碰撞（UPC）中的非相干光生$ρ$截面进行了预测.我们发现，非弹性核阴影的影响是显着的，并导致额外的25%的抑制的非相干截面。将我们的预测与STARlight Monte Carlo框架的预测进行比较，我们观察到非常显著的差异。
Evaluating the ratio of the exclusive vector meson photoproduction to inclusive hadron/jet production cross section in ultraperipheral heavy ion collisions
Universidade Federal de Santa Catarina（圣卡塔琳娜联邦大学）；Federal University of Rio Grande do Sul (UFRGS)（南里奥格兰德联邦大学）
Accessing transverse nucleon and gluon distributions in heavy nuclei using coherent vector meson photoproduction at high energies in ion ultraperipheral collisions
Exclusive $ρ$ and $J/Ψ$ photoproduction in ultraperipheral $pA$ collisions: Predictions of the gluon saturation models for the momentum transfer distributions
Probing gluon fluctuations in nuclei with the first energy-dependent measurement of incoherent J/$ψ$ photoproduction in ultraperipheral PbPb collisions
Inclusive heavy meson photoproduction in $pPb$ and $PbPb$ collisions
Federal University of Pelotas（佩洛塔斯联邦大学）；The Henryk Niewodniczański Institute of Nuclear Physics Polish Academy of Sciences (PAN)（波兰科学院亨利克·涅沃德尼茨基核物理研究所）
Probing small Bjorken-$x$ nuclear gluonic structure via coherent J/$ψ$ photoproduction in ultraperipheral PbPb collisions at $\sqrt{s_\mathrm{NN}}$ = 5.02 TeV
Evidence of Spin-Interference Effects in Exclusive $J/ψ\to e^+e^-$ Photoproduction in Ultraperipheral Heavy-Ion Collisions
Texas A&M University（德克萨斯农工大学）；Czech Technical University in Prague（布拉格捷克理工大学）；AGH University of Krakow（克拉科夫AGH科技大学）；Panjab University（潘杰布大学）；Variable Energy Cyclotron Centre（变能回旋加速器中心）；Kent State University（肯特州立大学）；Brookhaven National Laboratory（布鲁克海文国家实验室）；Fudan University（复旦大学）；Abilene Christian University（阿比林基督教大学）；Instituto de Alta Investigación, Universidad de Tarapacá（塔拉帕卡大学高等研究所）；Shandong University（山东大学）；Indian Institute of Science Education and Research (IISER)（印度科学教育与研究机构）；University of California, Riverside（加州大学河滨分校）；Indian Institute of Science Education and Research (IISER) Tirupati（提鲁帕蒂印度科学教育与研究机构）；University of Houston（休斯顿大学）；University of Jammu（詹穆大学）；State University of New York, Stony Brook（纽约州立大学石溪分校）
The QCD Pomeron in Ultraperipheral Heavy Ion Collisions: IV. Photonuclear Production of Vector Mesons
在QCD色偶极图中研究了超周边重离子碰撞中矢量介子的光核产生，着重讨论了饱和模型。计算了A + A --> V + A + A（V = ρ，ω，phi，J/Psi）过程的积分截面和快度分布，并给出了RHIC和LHC能量下轻核和重核散射的理论估计。与最近的STAR数据的ρ介子相干产生的比较也被提出。此外，我们还计算了RHIC、Tevatron和LHC能区质子-质子碰撞中矢量介子的光生。
On theoretical uncertainty of color dipole phenomenology in the J/Psi and Upsilon photoproduction in pA and AA collisions at the CERN Large Hadron Collider
Measurement of muon pairs produced via $γγ$ scattering in non-ultraperipheral Pb+Pb collisions at $\sqrt{s_{_\mathrm{NN}}} = 5.02$ TeV with the ATLAS detector
Measurement of the impact-parameter dependent azimuthal anisotropy in coherent $ρ^0$ photoproduction in Pb$-$Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV
ALICE 首次测量 5.02 TeV 超边缘 Pb–Pb 碰撞中相干 ρ⁰ 光生衰变的碰撞参数依赖方位角各向异性，发现小碰撞参数下 cos(2ϕ) 振幅增大约一个数量级。
