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We report on a search for millicharged particles (mCPs) produced in cosmic ray proton atmospheric interactions using data collected during the first science run of the LUX-ZEPLIN experiment. The mCPs produced by two processes -- meson decay…

高能物理 - 实验 · 物理学 2025-06-19 J. Aalbers , D. S. Akerib , A. K. Al Musalhi , F. Alder , C. S. Amarasinghe , A. Ames , T. J. Anderson , N. Angelides , H. M. Araújo , J. E. Armstrong , M. Arthurs , A. Baker , S. Balashov , J. Bang , J. W. Bargemann , E. E. Barillier , D. Bauer , K. Beattie , T. Benson , A. Bhatti , A. Biekert , T. P. Biesiadzinski , H. J. Birch , E. Bishop , G. M. Blockinger , B. Boxer , C. A. J. Brew , P. Brás , S. Burdin , M. Buuck , M. C. Carmona-Benitez , M. Carter , A. Chawla , H. Chen , J. J. Cherwinka , Y. T. Chin , N. I. Chott , M. V. Converse , R. Coronel , A. Cottle , G. Cox , D. Curran , C. E. Dahl , I. Darlington , S. Dave , A. David , J. Delgaudio , S. Dey , L. de Viveiros , L. Di Felice , C. Ding , J. E. Y. Dobson , E. Druszkiewicz , S. Dubey , S. R. Eriksen , A. Fan , S. Fayer , N. M. Fearon , N. Fieldhouse , S. Fiorucci , H. Flaecher , E. D. Fraser , T. M. A. Fruth , R. J. Gaitskell , A. Geffre , J. Genovesi , C. Ghag , A. Ghosh , R. Gibbons , S. Gokhale , J. Green , M. G. D. van der Grinten , J. J. Haiston , C. R. Hall , T. J. Hall , S. Han , E. Hartigan-O'Connor , S. J. Haselschwardt , M. A. Hernandez , S. A. Hertel , G. Heuermann , G. J. Homenides , M. Horn , D. Q. Huang , D. Hunt , E. Jacquet , R. S. James , J. Johnson , A. C. Kaboth , A. C. Kamaha , Meghna K. K. , D. Khaitan , A. Khazov , I. Khurana , J. Kim , Y. D. Kim , J. Kingston , R. Kirk , D. Kodroff , L. Korley , E. V. Korolkova , H. Kraus , S. Kravitz , L. Kreczko , V. A. Kudryavtsev , C. Lawes , D. S. Leonard , K. T. Lesko , C. Levy , J. Lin , A. Lindote , W. H. Lippincott , M. I. Lopes , W. Lorenzon , C. Lu , S. Luitz , P. A. Majewski , A. Manalaysay , R. L. Mannino , C. Maupin , M. E. McCarthy , G. McDowell , D. N. McKinsey , J. McLaughlin , J. B. McLaughlin , R. McMonigle , E. Mizrachi , A. Monte , M. E. Monzani , J. D. Morales Mendoza , E. Morrison , B. J. Mount , M. Murdy , A. St. J. Murphy , A. Naylor , H. N. Nelson , F. Neves , A. Nguyen , C. L. O'Brien , I. Olcina , K. C. Oliver-Mallory , J. Orpwood , K. Y Oyulmaz , K. J. Palladino , J. Palmer , N. J. Pannifer , N. Parveen , S. J. Patton , B. Penning , G. Pereira , E. Perry , T. Pershing , A. Piepke , Y. Qie , J. Reichenbacher , C. A. Rhyne , A. Richards , Q. Riffard , G. R. C. Rischbieter , E. Ritchey , H. S. Riyat , R. Rosero , T. Rushton , D. Rynders , D. Santone , A. B. M. R. Sazzad , R. W. Schnee , G. Sehr , B. Shafer , S. Shaw , T. Shutt , J. J. Silk , C. Silva , G. Sinev , J. Siniscalco , R. Smith , V. N. Solovov , P. Sorensen , J. Soria , I. Stancu , A. Stevens , K. Stifter , B. Suerfu , T. J. Sumner , M. Szydagis , D. R. Tiedt , M. Timalsina , Z. Tong , D. R. Tovey , J. Tranter , M. Trask , M. Tripathi , A. Usón , A. Vacheret , A. C. Vaitkus , O. Valentino , V. Velan , A. Wang , J. J. Wang , Y. Wang , J. R. Watson , L. Weeldreyer , T. J. Whitis , K. Wild , M. Williams , W. J. Wisniewski , L. Wolf , F. L. H. Wolfs , S. Woodford , D. Woodward , C. J. Wright , Q. Xia , J. Xu , Y. Xu , M. Yeh , D. Yeum , W. Zha , E. A. Zweig

As neutrinoless double-beta decay experiments become more sensitive and intrinsic radioactivity in detector materials is reduced, previously minor contributions to the background must be understood and eliminated. With this in mind,…

For a high energy electron facility, the estimates of induced radioactivity in materials are of major importance to keep exposure to personnel and to the environment as low as reasonably achievable. In addition, an accurate prediction of…

仪器与探测器 · 物理学 2014-06-10 He Lijuan , Li Yuxiong , Yu Guobing , Ren Guangyi , Duan Zongjin

Recently, the KM3NeT experiment reported the detection of a neutrino with exceptionally high energy E = 220 PeV, whose origin remains unclear. The corresponding value of the neutrino flux is in tension with the results of other high-energy…

高能天体物理现象 · 物理学 2026-04-13 M. Yu. Kuznetsov , N. A. Petrov , Y. S. Savchenko

Xenon dual-phase time projections chambers (TPCs) have proven to be a successful technology in studying physical phenomena that require low-background conditions. With 40t of liquid xenon (LXe) in the TPC baseline design, DARWIN will have a…

仪器与探测器 · 物理学 2024-07-26 M. Adrover , L. Althueser , B. Andrieu , E. Angelino , J. R. Angevaare , B. Antunovic , E. Aprile , M. Babicz , D. Bajpai , E. Barberio , L. Baudis , M. Bazyk , N. Bell , L. Bellagamba , R. Biondi , Y. Biondi , A. Bismark , C. Boehm , A. Breskin , E. J. Brookes , A. Brown , G. Bruno , R. Budnik , C. Capelli , J. M. R. Cardoso , A. Chauvin , A. P. Cimental Chavez , A. P. Colijn , J. Conrad , J. J. Cuenca-García , V. D'Andrea , M. P. Decowski , A. Deisting , P. Di Gangi , S. Diglio , M. Doerenkamp , G. Drexlin , K. Eitel , A. Elykov , R. Engel , S. Farrell , A. D. Ferella , C. Ferrari , H. Fischer , M. Flierman , W. Fulgione , P. Gaemers , R. Gaior , M. Galloway , N. Garroum , S. Ghosh , F. Girard , R. Glade-Beucke , F. Glück , L. Grandi , J. Grigat , R. Größle , H. Guan , M. Guida , R. Hammann , V. Hannen , S. Hansmann-Menzemer , N. Hargittai , T. Hasegawa , C. Hils , A. Higuera , K. Hiraoka , L. Hoetzsch , M. Iacovacci , Y. Itow , J. Jakob , F. Jörg , M. Kara , P. Kavrigin , S. Kazama , M. Keller , B. Kilminster , M. Kleifges , M. Kobayashi , A. Kopec , B. von Krosigk , F. Kuger , H. Landsman , R. F. Lang , I. Li , S. Li , S. Liang , S. Lindemann , M. Lindner , F. Lombardi , J. Loizeau , T. Luce , Y. Ma , C. Macolino , J. Mahlstedt , A. Mancuso , T. Marrodán Undagoitia , J. A. M. Lopes , F. Marignetti , K. Martens , J. Masbou , S. Mastroianni , S. Milutinovic , K. Miuchi , R. Miyata , A. Molinario , C. M. B. Monteiro , K. Morå , E. Morteau , Y. Mosbacher , J. Müller , M. Murra , J. L. Newstead , K. Ni , U. G. Oberlack , I. Ostrovskiy , B. Paetsch , M. Pandurovic , Q. Pellegrini , R. Peres , J. Pienaar , M. Pierre , M. Piotter , G. Plante , T. R. Pollmann , L. Principe , J. Qi , J. Qin , M. Rajado Silva , D. Ramírez García , A. Razeto , S. Sakamoto , L. Sanchez , P. Sanchez-Lucas , J. M. F. dos Santos , G. Sartorelli , A. Scaffidi , P. Schulte , H. -C. Schultz-Coulon , H. Schulze Eißing , M. Schumann , L. Scotto Lavina , M. Selvi , F. Semeria , P. Shagin , S. Sharma , W. Shen , M. Silva , H. Simgen , R. Singh , M. Solmaz , O. Stanley , M. Steidl , P. L. Tan , A. Terliuk , D. Thers , T. Thümmler , F. Tönnies , F. Toschi , G. Trinchero , R. Trotta , C. Tunnell , P. Urquijo , K. Valerius , S. Vecchi , S. Vetter , G. Volta , D. Vorkapic , W. Wang , K. M. Weerman , C. Weinheimer , M. Weiss , D. Wenz , C. Wittweg , J. Wolf , T. Wolf , V. H. S. Wu , M. Wurm , Y. Xing , M. Yamashita , J. Ye , G. Zavattini , K. Zuber

In-situ ${\gamma}$-ray measurements were performed using a portable high purity germanium spectrometer in Hall-C at the second phase of the China Jinping Underground Laboratory (CJPL-II) to characterise the environmental radioactivity…

仪器与探测器 · 物理学 2021-02-10 H. Ma , Z. She , W. H. Zeng , Z. Zeng , M. K. Jing , Q. Yue , J. P. Cheng , J. L. Li , H. Zhang

Neutrons produced by cosmic muon interactions are important contributors to backgrounds in underground detectors when searching for rare events. Typically such neutrons can dominate the background, as they are particularly difficult to…

天体物理仪器与方法 · 物理学 2015-06-22 A Empl , E. V. Hungerford , R. Jasim , P. Mosteiro

We use an updated version of {\it SimProp}, a Monte Carlo simulation scheme for the propagation of ultra-high energy cosmic rays, to compute cosmogenic neutrino fluxes expected on Earth in various scenarios. These fluxes are compared with…

高能天体物理现象 · 物理学 2015-10-07 R. Aloisio , D. Boncioli , A di Matteo , A. F. Grillo , S. Petrera , F. Salamida

During 2013-2015 an expansion of the China JinPing underground Laboratory (CJPL) will be undertaken along a main branch of a bypass tunnel in the JinPing tunnel complex. This second phase of CJPL will increase laboratory space to…

仪器与探测器 · 物理学 2014-04-29 Jainmin Li , Xiangdong Ji , Wick Haxton , Joseph S. Y. Wang

Ultrahigh energy cosmic ray (UHECR) protons interacting with the cosmic microwave background (CMB) produce UHE electrons and gamma-rays that in turn initiate electromagnetic cascades on CMB and infrared photons. As a result, a background of…

高能天体物理现象 · 物理学 2015-05-18 V. Berezinsky , A. Gazizov , M. Kachelriess , S. Ostapchenko

We present an updated version of the {\it SimProp} Monte Carlo code to study the propagation of ultra high energy cosmic rays in astrophysical backgrounds computing the cosmogenic neutrino fluxes expected on earth. The study of secondary…

高能天体物理现象 · 物理学 2015-08-11 R. Aloisio , D. Boncioli , A. di Matteo , A. F. Grillo , S. Petrera , F. Salamida

CoGeNT employs p-type point-contact (PPC) germanium detectors to search for Weakly Interacting Massive Particles (WIMPs). By virtue of its low energy threshold and ability to reject surface backgrounds, this type of device allows an…

A telescope of two coaxial scintillation detectors (an upper thin CsJ crystal of d63x0,35mm2 and a lower thick NaJ crystal of d150x100 mm2) located vertically on the surface of the Earth was used to have during T=106 hours 20 events…

高能物理 - 实验 · 物理学 2007-05-23 Bazhutov Yu. N

The concept of the LAr TPC technology that is an excellent tracking - calorimeter detector will be used for the next generations of neutrino experiments. In this class of detectors both the scintillation light emitted and the charge…

仪器与探测器 · 物理学 2018-09-26 Mihaela Pârvu , I. Lazanu

A dedicated cosmic muon Monte-Carlo event generator CMSCGEN has been developed for the CMS experiment. The simulation relies on parameterisations of the muon energy and the incidence angle, based on measured and simulated data of the cosmic…

高能物理 - 实验 · 物理学 2011-07-05 Lars Sonnenschein

We report an experimental investigation on the irradiation of copper thin films with high repetition rate femtosecond laser pulses (1040 nm, 50 MHz), in ambient air and liquid water. We observe a novel, striking phenomenon of chromatic…

材料科学 · 物理学 2016-05-25 Shutong He , Salvatore Amoruso , Dongqing Pang , Chingyue Wang , Minglie Hu

Four categories of events have been identified in the EDELWEISS-I dark matter experiment using germanium cryogenic detectors measuring simultaneously charge and heat signals. These categories of events are interpreted as electron and…

CDMS II data from the 5-tower runs at the Soudan Underground Laboratory were reprocessed with an improved charge-pulse fitting algorithm. Two new analysis techniques to reject surface-event backgrounds were applied to the 612 kg days…