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The coefficients that describe the anisotropy in the azimuthal distribution of particles are lower when the particles are recorded in a detector with finite granularity and measures only hits. This arises due to loss of information because…

Nuclear Experiment · Physics 2011-09-13 Sudhir Raniwala , Marek Idzik , Rashmi Raniwala , Yogendra P. Viyogi

The design and construction of a recoil detector for the measurement of recoil protons of antiproton-proton elastic scattering at scattering angles close to 90$^{\circ}$ are described. The performance of the recoil detector has been tested…

Instrumentation and Detectors · Physics 2015-06-23 Q. Hu , U. Bechstedt , A. Gillitzer , D. Grzonka , A. Khoukaz , F. Klehr , A. Lehrach , D. Prasuhn , J. Ritman , T. Sefzick , T. Stockmann , A. Täschner , P. Wuestner , H. Xu

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…

Data are presented from the DRIFT-IId detector housed in the Boulby mine in northeast England. A 0.8 m^3 fiducial volume, containing partial pressures of 30 Torr CS2 and 10 Torr CF4, was exposed for a duration of 47.4 live-time days with…

There has been a recent surge in statistical methods for handling the lack of adequate positivity when using inverse probability weights (IPW). However, these nascent developments have raised a number of questions. Thus, we demonstrate the…

Methodology · Statistics 2024-02-05 Roland A. Matsouaka , Yi Liu , Yunji Zhou

A random sequence having two segments being the homogeneous Markov processes is registered. Each segment has his own transition probability law and the length of the segment is unknown and random. The transition probabilities of each…

Statistics Theory · Mathematics 2020-11-17 A. Ochman-Gozdek , W. Sarnowski , K. J. Szajowski

Causal discovery methods aim to infer causal direction from observational data. Functional causal discovery approaches use structural asymmetries to identify causal directionality but rely on strong modeling assumptions and provide limited…

Methodology · Statistics 2026-05-14 Shreya Prakash , Fan Xia , Elena A. Erosheva

The DAMA/LIBRA collaboration has detected an annual modulation of the recoil rate in NaI crystals with the phase expected for WIMP scattering events. This signal is dramatically inconsistent with upper limits from other experiments for…

Cosmology and Nongalactic Astrophysics · Physics 2010-09-14 Douglas P. Finkbeiner , Tongyan Lin , Neal Weiner

The first underground data run of the ZEPLIN-II experiment has set a limit on the nuclear recoil rate in the two-phase xenon detector for direct dark matter searches. In this paper the results from this run are converted into the limits on…

Astrophysics · Physics 2009-06-23 G. J. Alner et al.

Anomalies are strange data points; they usually represent an unusual occurrence. Anomaly detection is presented from the perspective of Wireless sensor networks. Different approaches have been taken in the past, as we will see, not only to…

Machine Learning · Computer Science 2017-08-30 Pelumi Oluwasanya

Background: Nuclear recoil from scattering with weakly interacting massive particles (WIMPs) is a signature searched for in direct detection of dark matter. The underlying WIMP-nucleon interactions could be spin and/or orbital angular…

High Energy Physics - Phenomenology · Physics 2025-10-13 Raghda Abdel Khaleq , Giorgio Busoni , Cedric Simenel , Andrew E. Stuchbery

The statistical expectation values of the temperature fluctuations of the Cosmic Microwave Background (CMB) are assumed to be preserved under rotations of the sky. We investigate the Statistical Isotropy (SI) of the CMB anisotropy maps…

Astrophysics · Physics 2009-11-10 Amir Hajian , Tarun Souradeep , Neil Cornish

We consider inference on the first principal direction of a $p$-variate elliptical distribution. We do so in challenging double asymptotic scenarios for which this direction eventually fails to be identifiable. In order to achieve…

Statistics Theory · Mathematics 2019-08-30 Davy Paindaveine , Julien Remy , Thomas Verdebout

Liquid xenon is an important detection medium in direct dark matter experiments, which search for low-energy nuclear recoils produced by the elastic scattering of WIMPs with quarks. The two existing measurements of the relative…

The Dark Matter Time Projection Chamber (DMTPC) experiment uses CF_4 gas at low pressure (0.1 atm) to search for the directional signature of Galactic WIMP dark matter. We describe the DMTPC apparatus and summarize recent results from a…

Propensity score matching is commonly used to draw causal inference from observational survival data. However, its asymptotic properties have yet to be established, and variance estimation is still open to debate. We derive the statistical…

Methodology · Statistics 2024-12-24 Tongrong Wang , Honghe Zhao , Shu Yang , Shuhan Tang , Zhanglin Cui , Li Li , Douglas E. Faries

We report on the first search for nuclear recoils from dark matter in the form of weakly interacting massive particles (WIMPs) with the XENONnT experiment which is based on a two-phase time projection chamber with a sensitive liquid xenon…

High Energy Physics - Experiment · Physics 2023-08-08 XENON Collaboration , E. Aprile , K. Abe , F. Agostini , S. Ahmed Maouloud , L. Althueser , B. Andrieu , E. Angelino , J. R. Angevaare , V. C. Antochi , D. Antón Martin , F. Arneodo , L. Baudis , A. L. Baxter , M. Bazyk , L. Bellagamba , R. Biondi , A. Bismark , E. J. Brookes , A. Brown , S. Bruenner , G. Bruno , R. Budnik , T. K. Bui , C. Cai , J. M. R. Cardoso , D. Cichon , A. P. Cimental Chavez , A. P. Colijn , J. Conrad , J. J. Cuenca-García , J. P. Cussonneau , V. D'Andrea , M. P. Decowski , P. Di Gangi , S. Di Pede , S. Diglio , K. Eitel , A. Elykov , S. Farrell , A. D. Ferella , C. Ferrari , H. Fischer , M. Flierman , W. Fulgione , C. Fuselli , P. Gaemers , R. Gaior , A. Gallo Rosso , M. Galloway , F. Gao , R. Glade-Beucke , L. Grandi , J. Grigat , H. Guan , M. Guida , R. Hammann , A. Higuera , C. Hils , L. Hoetzsch , N. F. Hood , J. Howlett , M. Iacovacci , Y. Itow , J. Jakob , F. Joerg , A. Joy , N. Kato , M. Kara , P. Kavrigin , S. Kazama , M. Kobayashi , G. Koltman , A. Kopec , F. Kuger , H. Landsman , R. F. Lang , L. Levinson , I. Li , S. Li , S. Liang , S. Lindemann , M. Lindner , K. Liu , J. Loizeau , F. Lombardi , J. Long , J. A. M. Lopes , Y. Ma , C. Macolino , J. Mahlstedt , A. Mancuso , L. Manenti , F. Marignetti , T. Marrodán Undagoitia , K. Martens , J. Masbou , D. Masson , E. Masson , S. Mastroianni , M. Messina , K. Miuchi , K. Mizukoshi , A. Molinario , S. Moriyama , K. Morå , Y. Mosbacher , M. Murra , J. Müller , K. Ni , U. Oberlack , B. Paetsch , J. Palacio , R. Peres , C. Peters , J. Pienaar , M. Pierre , V. Pizzella , G. Plante , J. Qi , J. Qin , D. Ramírez García , R. Singh , L. Sanchez , J. M. F. dos Santos , I. Sarnoff , G. Sartorelli , J. Schreiner , D. Schulte , P. Schulte , H. Schulze Eißing , M. Schumann , L. Scotto Lavina , M. Selvi , F. Semeria , P. Shagin , S. Shi , E. Shockley , M. Silva , H. Simgen , A. Takeda , P. -L. Tan , A. Terliuk , D. Thers , F. Toschi , G. Trinchero , C. Tunnell , F. Tönnies , K. Valerius , G. Volta , C. Weinheimer , M. Weiss , D. Wenz , C. Wittweg , T. Wolf , V. H. S. Wu , Y. Xing , D. Xu , Z. Xu , M. Yamashita , L. Yang , J. Ye , L. Yuan , G. Zavattini , M. Zhong , T. Zhu

In this paper we study the effect of the channeling of ions recoiling from collisions with weakly interacting massive particles (WIMPs) in single crystal detectors. In particular we investigate the possibility that channeling may give rise…

Instrumentation and Methods for Astrophysics · Physics 2015-05-19 Richard J. Creswick , Shmuel Nussinov , Frank T. Avignone

Bayesian statistical methods offer a simple and consistent framework for incorporating uncertainties into a multi-parameter inference problem. In this work we apply these methods to a selection of current direct dark matter searches. We…

High Energy Physics - Phenomenology · Physics 2015-05-28 Chiara Arina , Jan Hamann , Yvonne Y. Y. Wong

Inverse Probability Weighting (IPW) is widely used in empirical work in economics and other disciplines. As Gaussian approximations perform poorly in the presence of "small denominators," trimming is routinely employed as a regularization…

Econometrics · Economics 2019-05-28 Xinwei Ma , Jingshen Wang
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