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The PoGO+ Balloon-Borne Hard X-ray Polarimetry Mission

The PoGO mission, including the PoGOLite Pathfinder and PoGO+, aims to provide polarimetric measurements of the Crab system and Cygnus X-1 in the hard X-ray band. Measurements are conducted from a stabilized balloon-borne platform, launched…

Instrumentation and Methods for Astrophysics · Physics 2018-03-07 M. Friis , M. Kiss , V. Mikhalev , M. Pearce , H. Takahashi

Measurement of transverse polarization of $\Lambda$ and $\bar{\Lambda}$ hyperons inside jets in $pp$ collisions at $\sqrt{s}=200$ GeV

A surprisingly large transverse polarization of $\Lambda$ hyperons in unpolarized hadron-nucleon/nucleus collisions has been observed for 50 years, and the origin of this polarization remains an important open question. Recently,…

High Energy Physics - Experiment · Physics 2026-05-14 STAR Collaboration , B. E. Aboona , J. Adam , G. Agakishiev , I. Aggarwal , M. M. Aggarwal , Z. Ahammed , A. Aitbayev , I. Alekseev , E. Alpatov , A. K. Alshammri , A. Aparin , S. Aslam , J. Atchison , G. S. Averichev , V. Bairathi , X. Bao , P. Barik , K. Barish , S. Behera , P. Bhaga t , A. Bhasin , S. Bhatta , I. G. Bordyuzhin , J. D. Brandenburg , A. V. Brandin , C. Broodo , X. Z. Cai , H. Caines , M. Calderón de la Barca Sánchez , D. Cebra , J. Ceska , I. Chakaberia , Y. S. Chang , Z. Chang , A. Chatterjee , D. Chen , J. H. Chen , L. Chen , Q. Chen , W. Chen , Z. Chen , J. Cheng , Y. Cheng , W. Christie , X. Chu , S. Corey , H. J. Crawford , G. Dale-Gau , A. Das , D. De Souza Lemos , T. G. Dedovich , I. M. Deppner , A. A. Derevschikov , A. Deshpande , A. Dhamija , A. Dimri , P. Dixit , X. Dong , J. L. Drachenberg , E. Duckworth , J. C. Dunlop , Y. S. El-Feky , J. Engelage , G. Eppley , S. Esumi , O. Evdokimov , O. Eyser , B. Fan , Y. Fang , R. Fatemi , S. Fazio , H. Feng , Y. Feng , E. Finch , Y. Fisyak , F. A. Flor , B. Fu , C. Fu , T. Fu , T. Gao , Y. Gao , G. Garcia , F. Geurts , A. Gibson , A. Giri , K. Gopal , M. Gor don , X. Gou , D. Grosnick , A. Gu , J. Gu , A. Gupta , A. Hamed , R. J. Hamilton , J. Han , X. Han , M. D. Harasty , J. W. Harris , H. Harrison-Smith , L. B. Havener , X. H. He , Y. He , C. Hu , Q. Hu , Y. Hu , H. Huang , H. Z. Huang , S. L. Huang , T. Huang , Y. Huang , Y. Huang , Y. Huan g , M. Isshiki , W. W. Jacobs , A. Jalotra , C. Jena , Y. Ji , J. Jia , X. Jiang , C. Jin , Y. Jin , N. Jindal , X. Ju , E. G. Judd , S. Kabana , D. Kalinkin , J. Kang , K. Kang , A. R. Kanuganti , D. Kapukchyan , K. Kauder , D. Keane , A. Kechechyan , M. Kesler , A. Khanal , A. Khanal , J. Kim , A. Kiselev , A. G. Knospe , L. Kochenda , Y. Kong , A. A. Korobitsin , B. Korodi , A. Yu. Kraeva , P. Kravtsov , L. Kumar , M. C. Labonte , R. Lacey , J. M. Landgraf , C. Larson , A. Lebedev , R. Lednicky , J. H. Lee , Y. H. Leung , C. Li , D. Li , H-S. Li , H. Li , H. Li , H. Li , W. Li , X. Li , X. Li , Y. Li , Z. Li , Z. Li , X. Liang , T. Lin , Y. Lin , C. Liu , G. Liu , H. Liu , L. Liu , L. Liu , Z. Liu , Z. Liu , T. Ljubicic , O. Lomicky , E. M. Loyd , T. Lu , J. Luo , X. F. Luo , V. B. Luong , L. Ma , R. Ma , Y. G. Ma , N. Magdy , B. Maghoul , R. Manikandhan , O. M atonoha , K. Menduli , K. Mi , N. G. Minaev , B. Mohanty , B. Mondal , M. M. Mondal , I. Mooney , D. A. Morozov , M. I. Nagy , C. J. Naim , A. S. Nain , J. D. Nam , M. Nasim , H. Nasrulloh , E. Nedorezov , J. M. Nelson , M. Nie , G. Nigmatkulov , T. Niida , L. V. Nogach , T. Nonaka , G. Odyniec , A. Ogawa , S. Oh , V. A. Okorokov , K. Okubo , B. S. Page , M. Pal , S. Pal , A. Pandav , A. Panday , A. K. Pandey , Y. Panebratsev , T. Pani , P. Parfenov , A. Paul , S. Paul , C. Perkins , S. Ping , I. D. Ponce Pinto , M. Posik , E. Pottebaum , A. Povarov , S. Prodhan , T. L. Protzman , N. K. Pruthi , J. Putschke , Y. Qi , Z. Qin , H. Qiu , S. K. Radhakrishnan , A. Rana , R. L. Ray , C. W. Robertson , O. V. Rogachevsky , M. A. Rosales Aguilar , D. Roy , L. Ruan , A. K. Sahoo , N. R. Sahoo , H. Sako , S. Salur , S. S. Sambyal , E. Samigullin , D. T. Samuel , J. K. Sandhu , S. Sato , B. C. Schaefer , N. Schmitz , J. Seger , R. Seto , P. Seyboth , N. Shah , E. Shahaliev , P. V. Shanmuganathan , T. Shao , M. Sharma , N. Sharma , R. Sharma , S. R. Sharma , A. I. Sheikh , D. Shen , D. Y. Shen , K. Shen , S. Shi , Y. Shi , Shilpa , E. Shulga , F. S , J. Singh , S. Singha , P. Sinha , M. J. Skoby , Y. Söhngen , Y. Song , T. D. S. Stanislaus , M. Strikhanov , Y. Su , X. Sun , Y. Sun , B. Surrow , D. N. Svirida , Z. W. Sweger , A. C. Tamis , A. H. Tang , Z. Tang , A. Taranenko , T. Tarnowsky , J. H. Thomas , A. Timofeev , D. Tl usty , M. V. Tokarev , D. Torres-Valladares , S. Trentalange , O. D. Tsai , C. Y. Tsang , Z. Tu , J. E. Tyler , T. Ullrich , D. G. Underwood , G. Van Buren , A. N. Vasiliev , F. Videbæk , S. Vokal , S. A. Voloshin , F. Wang , G. Wang , G. Wang , J. S. Wang , J. Wang , K. Wang , X. W ang , Y. Wang , Y. Wang , Y. Wang , Z. Wang , Z. Wang , Z. Wang , J. C. Webb , P. C. Weidenkaff , G. D. Westfall , H. Wieman , G. Wilks , S. W. Wissink , C. P. Wong , J. Wu , X. Wu , X. Wu , X. Wu , B. Xi , Y. Xiao , Z. G. Xiao , G. Xie , W. Xie , H. Xu , N. Xu , Q. H. Xu , X. Xu , Y. Xu , Y. Xu , Y. Xu , Y. Xu , Z. Xu , Z. Xu , G. Yan , Z. Yan , C. Yang , Q. Yang , S. Yang , Y. Yang , Z. Ye , Z. Ye , L. Yi , Y. Yu , W. Yuan , W. Zha , C. Zhang , D. Zhang , J. Zhang , K. Zhang , L. Zhang , S. Zhang , W. Zhang , W. Zhang , X. Zhang , Y. Zhang , Y. Zhang , Y. Zhang , Y. Zhang , Z. Zhan g , Z. Zhang , F. Zhao , J. Zhao , S. Zhou , Y. Zhou , C. Zhu , X. Zhu , M. Zurek , M. Zyzak

PRIMAGAL: a PRIMAger Galactic Plane Far-IR polarization survey to quantify the magnetic fields' role in the formation and evolution of large star-forming filaments

The PRIMAger instrument on board the proposed PRIMA satellite will offer the unprecedented capability to obtain hundreds of square-degree maps in polarised emission at sub-arcminute resolution in four Far-IR bands. This will open a unique…

Astrophysics of Galaxies · Physics 2025-05-19 S. Molinari , J. D. Soler , V. -M. Pelkonen , A. Nucara , E. Schisano , A. Traficante , C. Mininni , M. Benedettini , A. Coletta , D. Elia , S. Pezzuto

Response of the first POLAR-2 Prototype to Polarized Beams

POLAR-2 is a dedicated gamma-ray polarimeter currently foreseen to be launched towards the China Space Station around 2027. The design of the detector is based on the legacy of its predecessor mission POLAR which was launched in 2016.…

Instrumentation and Methods for Astrophysics · Physics 2025-01-14 Merlin Kole , Nicolas de Angelis , Ana Bacelj , Franck Cadoux , Agnieszka Elwertowska , Johannes Hulsman , Hancheng Li , Grzegorz Łubian , Tomasz Kowalski , Gilles Koziol , Agnieszka Pollo , Nicolas Produit , Dominik Rybka , Adrien Stil , Jianchao Sun , Xin Wu , Kacper Zezuliński , Shuang-Nan Zhang

Observations of Polarized Dust Emission at Far-infrared through Millimeter Wavelengths

Interstellar polarization at far-infrared through millimeter wavelengths (0.1 - 1 mm) is primarily due to thermal emission from dust grains aligned with magnetic fields. This mechanism has led to studies of magnetic fields in a variety of…

Astrophysics of Galaxies · Physics 2009-04-14 John E. Vaillancourt

A measurement of the polarization-temperature angular cross power spectrum of the Cosmic Microwave Background from the 2003 flight of BOOMERANG

We present a measurement of the temperature-polarization angular cross power spectrum, <TE>, of the Cosmic Microwave Background. The result is based on $\sim 200$ hours of data from 8 polarization sensitive bolometers operating at 145 GHz…

Astrophysics · Physics 2010-11-11 F Piacentini , P Ade , J Bock , J Bond , J Borrill , A Boscaleri , P Cabella , C Contaldi , B Crill , P de Bernardis , G De Gasperis , A de Oliveira-Costa , G De Troia , G Di Stefano , E Hivon , A Jaffe , T Kisner , W Jones , A Lange , S Masi , P Mauskopf , C MacTavish , A Melchiorri , T Montroy , P Natoli , C Netterfield , E Pascale , D Pogosyan , G Polenta , S Prunet , S Ricciardi , G Romeo , J Ruhl , P Santini , M Tegmark , M Veneziani , N Vittorio

Design of a Nondestructive Two-in-One Instrument for Measuring the Polarization and Energy Spectrum at an X-ray FEL Facility

The free electron laser (FEL), as a next-generation light source, is an attractive tool in scientific frontier research because of its advantages of full coherence, ultra-short pulse duration, and controllable polarization. Owing to the…

Instrumentation and Detectors · Physics 2017-10-25 Qingmin Zhang , Bangjie Deng , Yuanmiaoliang Chen , Bochao Liu , Shaofei Chen , Jinquan Fan , Lie Feng , Haixiao Deng , Bo Liu , Dong Wang

Separation of two contributions to the high energy emission of Cygnus X-1: Polarization measurements with INTEGRAL SPI

Operational since 2002 on-board the INTEGRAL observatory, the SPI spectrometer can be used to perform polarization measurements in the hard X-ray/soft gamma-ray domain (~ 130 keV - 8 MeV). However, this phenomenon is complex to measure at…

High Energy Astrophysical Phenomena · Physics 2015-06-11 E. Jourdain , J. P. Roques , M. Chauvin , D. J. Clark

Longitudinal double spin asymmetry in jet production at STAR

We present recent measurements of the longitudinal double-spin asymmetry A_LL for the inclusive production of jets at midrapidity in polarized proton-proton collisions at sqrt(s)=200GeV. The data amount to an integrated luminosity of 3pb-1…

High Energy Physics - Experiment · Physics 2007-06-20 Katarzyna Kowalik

POLAR-2, the next generation of GRB polarization detector

The POLAR-2 Gamma-Ray Burst (GRB) Polarimetry mission is a follow-up to the successful POLAR mission. POLAR collected six months of data in 2016-2017 on board the Tiangong-2 Chinese Space laboratory. From a polarization study on 14 GRBs,…

Instrumentation and Methods for Astrophysics · Physics 2023-09-04 Nicolas Produit , Merlin Kole , Xin Wu , Nicolas De Angelis , Hancheng Li , Dominik Rybka , Agnieszka Pollo , Slawomir Mianowski , Jochen Greiner , J. Michael Burgess , Jianchao Sun , Shuang-Nan Zhang

The large scale polarization explorer (LSPE) for CMB measurements: performance forecast

[Abridged] The measurement of the polarization of the Cosmic Microwave Background radiation is one of the current frontiers in cosmology. In particular, the detection of the primordial B-modes, could reveal the presence of gravitational…

Instrumentation and Methods for Astrophysics · Physics 2021-08-10 The LSPE collaboration , G. Addamo , P. A. R. Ade , C. Baccigalupi , A. M. Baldini , P. M. Battaglia , E. S. Battistelli , A. Baù , P. de Bernardis , M. Bersanelli , M. Biasotti , A. Boscaleri , B. Caccianiga , S. Caprioli , F. Cavaliere , F. Cei , K. A. Cleary , F. Columbro , G. Coppi , A. Coppolecchia , F. Cuttaia , G. D'Alessandro , G. De Gasperis , M. De Petris , V. Fafone , F. Farsian , L. Ferrari Barusso , F. Fontanelli , C. Franceschet , T. C. Gaier , L. Galli , F. Gatti , R. Genova-Santos , M. Gerbino , M. Gervasi , T. Ghigna , D. Grosso , A. Gruppuso , R. Gualtieri , F. Incardona , M. E. Jones , P. Kangaslahti , N. Krachmalnicoff , L. Lamagna , M. Lattanzi , C. H. López-Caraballo , M. Lumia , R. Mainini , D. Maino , S. Mandelli , M. Maris , S. Masi , S. Matarrese , A. May , L. Mele , P. Mena , A. Mennella , R. Molina , D. Molinari , G. Morgante , U. Natale , F. Nati , P. Natoli , L. Pagano , A. Paiella , F. Panico , F. Paonessa , S. Paradiso , A. Passerini , M. Perez-de-Taoro , O. A. Peverini , F. Piacentini , L. Piccirillo , G. Pisano , D. Poletti , G. Presta , S. Realini , N. Reyes , J. A. Rubino-Martin , M. Sandri , S. Sartor , F. Pezzotta , G. Polenta , A. Rocchi , A. Schillaci , G. Signorelli , B. Siri , M. Soria , F. Spinella , V. Tapia , A. Tartari , A. C. Taylor , L. Terenzi , M. Tomasi , E. Tommasi , C. Tucker , D. Vaccaro , D. M. Vigano , F. Villa , G. Virone , N. Vittorio , A. Volpe , R. E. J. Watkins , A. Zacchei , M. Zannoni

The 2023 Balloon Flight of the ComPair Instrument

The ComPair balloon instrument is a prototype gamma-ray telescope that aims to further develop technology for observing the gamma-ray sky in the MeV regime. ComPair combines four detector subsystems to enable parallel Compton scattering and…

Instrumentation and Methods for Astrophysics · Physics 2024-10-04 Lucas D. Smith , Nicholas Cannady , Regina Caputo , Carolyn Kierans , Nicholas Kirschner , Iker Liceaga-Indart , Julie McEnery , Zachary Metzler , A. A. Moiseev , Lucas Parker , Jeremy Perkins , Makoto Sasaki , Adam J. Schoenwald , Daniel Shy , Janeth Valverde , Sambid Wasti , Richard Woolf , Aleksey Bolotnikov , Thomas J. Caligiure , A. Wilder Crosier , Jack Fried , Priyarshini Ghosh , Sean Griffin , J. Eric Grove , Elizabeth Hays , Emily Kong , John Mitchell , Bernard Phlips , Clio Sleator , D. J. Thompson , Eric Wulf , Anna Zajczyk

Interferometric characterization of pulse front tilt of spatiotemporally focused femtosecond laser pulses for three-dimensional micromachining application

We report on an experimental measurement of the pulse front tilt (PFT) of spatiotemporally focused femtosecond laser pulses in the focal plane in both air and bulk transparent materials, which is achieved by examination of the interference…

Optics · Physics 2014-09-02 Zhaohui Wang , Fei He , Jielei Ni , Chenrui Jing , Hongqiang Xie , Bin Zeng , Wei Chu , Lingling Qiao , Ya Cheng

Balloon-Borne Hard X-Ray Imaging and Future Surveys

Several payloads for hard X-ray (20-600 keV) imaging with coded aperture telescopes have been developed for balloon flight observations of cosmic x-ray sources. We briefly review the characteristics of these, particularly the EXITE2 system.…

Astrophysics · Physics 2009-10-30 Jonathan E. Grindlay

Atmospheric monitoring in the mm and sub-mm bands for cosmological observations: CASPER2

Cosmological observations from ground at millimetre and sub-millimetre wavelengths are affected by atmospheric absorption and consequent emission. The low and high frequency (sky noise) fluctuations of atmospheric performance imply careful…

Instrumentation and Methods for Astrophysics · Physics 2015-06-12 Marco De Petris , Simone De Gregori , Barbara Decina , Luca Lamagna , Juan R. Pardo

Analysis of a JWST NIRSpec Lab Time Series: Characterizing Systematics, Recovering Exoplanet Transit Spectroscopy, and Constraining a Noise Floor

The James Webb Space Telescope's NIRSpec instrument will unveil the nature of exoplanet atmospheres across the wealth of planet types, from temperate terrestrial worlds to ultrahot Jupiters. In particular, the 0.6-5.3 micron PRISM mode is…

Earth and Planetary Astrophysics · Physics 2022-03-30 Zafar Rustamkulov , David Sing , Rongrong Liu , Ashley Wang

Multiband optical polarimetry of the BL Lac object PKS 2155--304. Intranight and long term variability

The polarized and total flux of the BL Lac object PKS 2155-304 were monitored intensively and simultaneously in the optical UBVRI bands with the Turin photopolarimeter at the CASLEO 2.15 m telescope during 4 campaigns in June, August,…

Astrophysics · Physics 2009-10-31 Leonardo Tommasi , Ruben Diaz , Eliana Palazzi , Elena Pian , Ennio Poretti , Franco Scaltriti , Aldo Treves

The Antarctic Impulsive Transient Antenna Ultra-high Energy Neutrino Detector Design, Performance, and Sensitivity for 2006-2007 Balloon Flight

We present a detailed report on the experimental details of the Antarctic Impulsive Transient Antenna (ANITA) long duration balloon payload, including the design philosophy and realization, physics simulations, performance of the instrument…

Astrophysics · Physics 2009-09-28 ANITA collaboration , P. Gorham , P. Allison , S. Barwick , J. Beatty , D. Besson , W. Binns , C. Chen , P. Chen , J. Clem , A. Connolly , P. Dowkontt , M. DuVernois , R. Field , D. Goldstein , A. Goodhue , C. Hast , C. Hebert , S. Hoover , M. Israel , J. Kowalski , J. Learned , K. Liewer , J. Link , E. Lusczek , S. Matsuno , B. Mercurio , C. Miki , P. Miocinovic , J. Nam , C. Naudet , R. Nichol , K. Palladino , K. Reil , A. Romero-Wolf , M. Rosen , L. Ruckman , D. Saltzberg , D. Seckel , G. Varner , D. Walz , Y. Wang , F. Wu

Recent STAR Measurements to Constrain the Polarized Gluon Distribution Function of the Proton

The STAR experiment has been studying the spin structure of the proton, using the unique high-energy polarized proton collider, the Relativistic Heavy Ion Collider (RHIC). The kinematic coverage at STAR allows accessing gluons because…

Nuclear Experiment · Physics 2018-09-05 Amilkar Quintero

Testing particle acceleration models for BL LAC jets with the Imaging X-ray Polarimetry Explorer

To determine if the recently launched Imaging X-ray Polarimetry Explorer (IXPE) can follow the polarization variations induced by different particle acceleration mechanisms in blazars jets we simulate observations of a high synchrotron peak…

High Energy Astrophysical Phenomena · Physics 2022-06-29 L. Di Gesu , F. Tavecchio , I. Donnarumma , A. Marscher , M. Pesce-Rollins , M. Landoni