利用大型强子对撞机（LHC）中13万亿电子伏特质子-质子碰撞的MoEDAL前向捕获探测器寻找磁单极子。
Search for Magnetic Monopoles with the MoEDAL Forward Trapping Detector in 13 TeV Proton-Proton Collisions at the LHC.
作者信息
Acharya B, Alexandre J, Baines S, Benes P, Bergmann B, Bernabéu J, Branzas H, Campbell M, Caramete L, Cecchini S, de Montigny M, De Roeck A, Ellis J R, Fairbairn M, Felea D, Flores J, Frank M, Frekers D, Garcia C, Hirt A M, Janecek J, Kalliokoski M, Katre A, Kim D-W, Kinoshita K, Korzenev A, Lacarrère D H, Lee S C, Leroy C, Lionti A, Mamuzic J, Margiotta A, Mauri N, Mavromatos N E, Mermod P, Mitsou V A, Orava R, Parker B, Pasqualini L, Patrizii L, Păvălaş G E, Pinfold J L, Popa V, Pozzato M, Pospisil S, Rajantie A, Ruiz de Austri R, Sahnoun Z, Sakellariadou M, Sarkar S, Semenoff G, Shaa A, Sirri G, Sliwa K, Soluk R, Spurio M, Srivastava Y N, Suk M, Swain J, Tenti M, Togo V, Tuszyński J A, Vento V, Vives O, Vykydal Z, Whyntie T, Widom A, Willems G, Yoon J H, Zgura I S
机构信息
Physics Department, Theoretical Particle Physics & Cosmology Group, King's College, London, United Kingdom.
International Centre for Theoretical Physics, Trieste, Italy.
出版信息
Phys Rev Lett. 2017 Feb 10;118(6):061801. doi: 10.1103/PhysRevLett.118.061801.
MoEDAL is designed to identify new physics in the form of long-lived highly ionizing particles produced in high-energy LHC collisions. Its arrays of plastic nuclear-track detectors and aluminium trapping volumes provide two independent passive detection techniques. We present here the results of a first search for magnetic monopole production in 13 TeV proton-proton collisions using the trapping technique, extending a previous publication with 8 TeV data during LHC Run 1. A total of 222 kg of MoEDAL trapping detector samples was exposed in the forward region and analyzed by searching for induced persistent currents after passage through a superconducting magnetometer. Magnetic charges exceeding half the Dirac charge are excluded in all samples and limits are placed for the first time on the production of magnetic monopoles in 13 TeV pp collisions. The search probes mass ranges previously inaccessible to collider experiments for up to five times the Dirac charge.
MoEDAL旨在通过识别高能大型强子对撞机（LHC）碰撞中产生的长寿命高电离粒子来发现新物理。其塑料核径迹探测器阵列和铝俘获体提供了两种独立的被动探测技术。在此，我们展示了首次使用俘获技术在13 TeV质子 - 质子碰撞中寻找磁单极子产生的结果，扩展了之前关于LHC运行1期间8 TeV数据的一篇发表文章。总共222千克的MoEDAL俘获探测器样本暴露在前向区域，并通过在穿过超导磁力计后搜索感应持续电流进行分析。在所有样本中排除了超过狄拉克电荷一半的磁荷，并首次对13 TeV质子 - 质子碰撞中磁单极子的产生设置了限制。该搜索探测了对撞机实验之前无法达到的质量范围，最高可达五倍狄拉克电荷。
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