Related papers: Physics Results from COMPASS

Dihadron Transverse-Spin Asymmetries in Muon-Deuteron Deep-Inelastic Scattering

In 2022, the COMPASS collaboration performed semi-inclusive measurements of deep-inelastic muon-scattering on a transversely polarised deuteron (6LiD) target. From these data, transverse-spin-dependent dihadron asymmetries are extracted…

High Energy Physics - Experiment · Physics 2025-12-30 G. D. Alexeev , M. G. Alexeev , C. Alice , A. Amoroso , V. Andrieux , V. Anosov , S. Asatryan , K. Augsten , W. Augustyniak , C. D. R. Azevedo , B. Badelek , R. Beck , J. Beckers , Y. Bedfer , V. Benesova , J. Bernhard , F. Bradamante , A. Bressan , W. -C . Chang , C. Chatterjee , M. Chiosso , S. -U. Chung , A. Cicuttin , M. L. Crespo , D. D'Ago , S. Dalla Torre , S. S. Dasgupta , S. Dasgupta , M. Dehpour , F. Delcarro , I. Denisenko , O. Yu. Denisov , S. V. Donskov , N. Doshita , Ch. Dreisbach , W. Dün nweber , R. R. Dusaev , D. Ecker , P. Faccioli , M. Faessler , M. Finger , M. Finger , H. Fischer , K. J. Flöthner , W. Florian , J. M. Friedrich , V. Frolov , L. G. Garcia Ordòñez , O. P. Gavrichtchouk , S. Gerassimov , J. Giarra , D. Giordan o , A. Grasso , A. Gridin , M. Grosse Perdekamp , B. Grube , M. Grüner , A. Guskov , P. Haas , D. von Harrach , M. Hoffmann , A. Hoghmrtsyan , N. d'Hose , C. -Y. Hsieh , S. Ishimoto , A. Ivanov , T. Iwata , V. Jary , E. Jelinkova , R. Joosten , E. Kabuß , F. Kaspar , A. Kerbizi , B. Ketzer , G. V. Khaustov , T. Klasek , J. H. Koivuniemi , V. N. Kolosov , K. Kondo Horikawa , I. Konorov , A. Yu. Korzenev , A. M. Kotzinian , O. M. Kouznetsov , A. Koval , F. Kunne , K. Kurek , R. P. Kurjata , A. Kveton , K. Lavickova , S. Levorato , Y. -S. Lian , J. Lichtenstadt , P. -J. Lin , R. Longo , V. E. Lyubovitskij , A. Maggiora , N. Makke , G. K. Mallot , A. Maltsev , A. Martin , H. Marukyan , J. Marzec , J. Matoušek , T. Matsuda , C. Menezes Pires , F. Metzge r , W. Meyer , M. Mikhasenko , E. Mitrofanov , D. Miura , Y. Miyachi , R. Molina , A. Movsisian , A. Moretti , A. Nagaytsev , D. Neyret , M. Niemiec , J. Nový , W. -D. Nowak , G. Nukazuka , A. G. Olshevsky , M. Ostrick , D. Panzieri , B. Parsamyan , S. P aul , H. Pekeler , J. -C. Peng , M. Pešek , D. V. Peshekhonov , M. Pešková , S. Platchkov , J. Pochodzalla , V. A. Polyakov , P. Pucci , C. Quintans , G. Reicherz , C. Riedl , D. I. Ryabchikov , A. Rychter , A. Rymbekova , V. D. Samoylenko , A. S andacz , S. Sarkar , I. A. Savin , G. Sbrizzai , H. Schmieden , A. Selyunin , S. Seriubin , L. Sinha , D. Spülbeck , A. Srnka , M. Stolarski , M. Sulc , H. Suzuki , S. Tessaro , F. Tessarotto , A. Thiel , F. Tosello , A. Townsend , V. Tskhay , B. Valino ti , B. M. Veit , J. F. C. A. Veloso , A. Vijayakumar , M. Virius , M. Wagner , S. Wallner , K. Zaremba , M. Zavertyaev , M. Zemko , E. Zemlyanichkina , M. Ziembicki

Spin Physics Detector at NICA

The Spin Physics Detector is one of two large setups at the NICA collider under construction at JINR (Dubna). The ultimate goal of the studies at SPD is the measurement of different spin observables in polarized proton-proton and…

High Energy Physics - Experiment · Physics 2023-01-18 V. P. Ladygin

A novel design of general-purpose spectrometer with nucleon polarimeter function

The spin polarization of hadrons is a key observable for probing the details of particle and nuclear interactions, offering information not available from other measurements. Currently, general-purpose spectrometers lack the capability to…

High Energy Physics - Experiment · Physics 2025-12-03 Chuang-Xin Lin , Xiao-Rong Lv , Boxing Gou , Ai-Qiang Guo , Yu-Tie Liang

Experimental investigation of transverse spin asymmetries in muon-p SIDIS processes: Sivers asymmetries

The COMPASS Collaboration at CERN has measured the transverse spin azimuthal asymmetry of charged hadrons produced in semi-inclusive deep inelastic scattering using a 160 GeV positive muon beam and a transversely polarised NH_3 target. The…

High Energy Physics - Experiment · Physics 2015-06-05 C. Adolph , M. G. Alekseev , V. Yu. Alexakhin , Yu. Alexandrov , G. D. Alexeev , A. Amoroso , A. A. Antonov , A. Austregesilo , B. Badelek , F. Balestra , J. Barth , G. Baum , Y. Bedfer , J. Bernhard , R. Bertini , M. Bettinelli , K. Bicker , J. Bieling , R. Birsa , J. Bisplinghoff , P. Bordalo , F. Bradamante , C. Braun , A. Bravar , A. Bressan , E. Burtin , L. Capozza , M. Chiosso , S. U. Chung , A. Cicuttin , M. L. Crespo , S. Dalla Torre , S. Das , S. S. Dasgupta , S. Dasgupta , O. Yu. Denisov , L. Dhara , S. V. Donskov , N. Doshita , V. Duic , W. Duennweber , M. Dziewiecki , A. Efremov , C. Elia , P. D. Eversheim , W. Eyrich , M. Faessler , A. Ferrero , A. Filin , M. Finger , M. Finger , H. Fischer , C. Franco , N. du Fresne von Hohenesche , J. M. Friedrich , V. Frolov , R. Garfagnini , F. Gautheron , O. P. Gavrichtchouk , S. Gerassimov , R. Geyer , M. Giorgi , I. Gnesi , B. Gobbo , S. Goertz , S. Grabmueller , A. Grasso , B. Grube , R. Gushterski , A. Guskov , T. Guthoerl , F. Haas , D. von Harrach , F. H. Heinsius , F. Herrmann , C. Hess , F. Hinterberger , N. Horikawa , Ch. Hoeppner , N. d'Hose , S. Ishimoto , O. Ivanov , Yu. Ivanshin , T. Iwata , R. Jahn , V. Jary , P. Jasinski , R. Joosten , E. Kabuss , D. Kang , B. Ketzer , G. V. Khaustov , Yu. A. Khokhlov , Yu. Kisselev , F. Klein , K. Klimaszewski , S. Koblitz , J. H. Koivuniemi , V. N. Kolosov , K. Kondo , K. Koenigsmann , I. Konorov , V. F. Konstantinov , A. Korzenev , A. M. Kotzinian , O. Kouznetsov , M. Kraemer , Z. V. Kroumchtein , F. Kunne , K. Kurek , L. Lauser , A. A. Lednev , A. Lehmann , S. Levorato , J. Lichtenstadt , T. Liska , A. Maggiora , A. Magnon , N. Makke , G. K. Mallot , A. Mann , C. Marchand , A. Martin , J. Marzec , T. Matsuda , G. Meshcheryakov , W. Meyer , T. Michigami , Yu. V. Mikhailov , M. A. Moinester , A. Morreale , A. Mutter , A. Nagaytsev , T. Nagel , T. Negrini , F. Nerling , S. Neubert , D. Neyret , V. I. Nikolaenko , W. D. Nowak , A. S. Nunes , A. G. Olshevsky , M. Ostrick , A. Padee , R. Panknin , D. Panzieri , B. Parsamyan , S. Paul , E. Perevalova , G. Pesaro , D. V. Peshekhonov , G. Piragino , S. Platchkov , J. Pochodzalla , J. Polak , V. A. Polyakov , J. Pretz , M. Quaresma , C. Quintans , J. -F. Rajotte , S. Ramos , V. Rapatsky , G. Reicherz , A. Richter , E. Rocco , E. Rondio , N. S. Rossiyskaya , D. I. Ryabchikov , V. D. Samoylenko , A. Sandacz , M. G. Sapozhnikov , S. Sarkar , I. A. Savin , G. Sbrizzai , P. Schiavon , C. Schill , T. Schlueter , K. Schmidt , L. Schmitt , K. Schoenning , S. Schopferer , M. Schott , W. Schroeder , O. Yu. Shevchenko , L. Silva , L. Sinha , A. N. Sissakian , M. Slunecka , G. I. Smirnov , S. Sosio , F. Sozzi , A. Srnka , L. Steiger , M. Stolarski , M. Sulc , R. Sulej , H. Suzuki , P. Sznajder , S. Takekawa , J. Ter Wolbeek , S. Tessaro , F. Tessarotto , L. G. Tkatchev , S. Uhl , I. Uman , M. Vandenbroucke , M. Virius , N. V. Vlassov , L. Wang , M. Wilfert , R. Windmolders , W. Wislicki , H. Wollny , K. Zaremba , M. Zavertyaev , E. Zemlyanichkina , M. Ziembicki , N. Zhuravlev , A. Zvyagin

Na61/Shine at the CERN SPS

Status of the new experimental program to study hadron production in hadron-nucleus and nucleus-nucleus collisions at the CERN SPS will be presented. In particular, a detailed physics motivation and experimental strategy will be given for…

Nuclear Experiment · Physics 2008-12-18 NA61 Collaboration , Andras Laszlo

Determination of Delta G/G from Open Charm events at COMPASS

One of the main goals of the COMPASS experiment at CERN is the determination of the gluon polarisation in the nucleon, Delta G/G. It is determined from spin asymmetries in the scattering of 160 GeV/c polarised muons on a polarised LiD…

High Energy Physics - Experiment · Physics 2011-11-10 S. Koblitz

Diffractive pion production at COMPASS -- First results on 3$\pi$ final states - neutral mode

The COMPASS experiment at CERN is designed for light hadron spectroscopy with emphasis on the detection of new states, in particular the search for exotic states and glue-balls. After a short pilot run in 2004 (190 GeV/c negative pion beam,…

High Energy Physics - Experiment · Physics 2019-08-14 Frank Nerling

Cross Sections and Charged Pion Spectra in Proton-Carbon Interactions at 31 GeV/c

As neutrino long baseline experiments enter a new domain of precision, the careful study of systematic errors due to poor knowledge of production cross sections for pions and kaons require more dedicated measurements for precise neutrino…

High Energy Physics - Experiment · Physics 2019-08-14 L. S. Esposito

NA61/SHINE experiment - programme beyond 2020

The fixed-target NA61/SHINE experiment (SPS CERN) looks for the critical point (CR) of strongly interacting matter and the properties of the onset of deconfinement. It is a scan of measurements of particle spectra and fluctuations in…

Nuclear Experiment · Physics 2018-11-15 Ludwik Turko

First Measurement of the Transverse Spin Asymmetries of the Deuteron in Semi-Inclusive Deep Inelastic Scattering

First measurements of the Collins and Sivers asymmetries of charged hadrons produced in deep-inelastic scattering of muons on a transversely polarized 6-LiD target are presented. The data were taken in 2002 with the COMPASS spectrometer…

High Energy Physics - Experiment · Physics 2012-08-27 The COMPASS Collaboration

A First Measurement of the Tensor-Polarized Structure Function b1d

The Hermes experiment studies the spin structure of the nucleon using the 27.6 GeV longitudinally polarized positron beam of HERA and an internal target of pure gases. In addition to the well-known spin structure function g_1, measured…

High Energy Physics - Experiment · Physics 2019-08-15 Marco Contalbrigo

Conceptual design of the Spin Physics Detector

The Spin Physics Detector, a universal facility for studying the nucleon spin structure and other spin-related phenomena with polarized proton and deuteron beams, is proposed to be placed in one of the two interaction points of the NICA…

High Energy Physics - Experiment · Physics 2022-02-04 V. M. Abazov , V. Abramov , L. G. Afanasyev , R. R. Akhunzyanov , A. V. Akindinov , N. Akopov , I. G. Alekseev , A. M. Aleshko , V. Yu. Alexakhin , G. D. Alexeev , M. Alexeev , A. Amoroso , I. V. Anikin , V. F. Andreev , V. A. Anosov , A. B. Arbuzov , N. I. Azorskiy , A. A. Baldin , V. V. Balandina , E. G. Baldina , M. Yu. Barabanov , S. G. Barsov , V. A. Baskov , A. N. Beloborodov , I. N. Belov , A. P. Belova , A. V. Belyaev , A. Ya. Berdnikov , Ya. A. Berdnikov , A. V. Berezhnoy , V. V. Bleko , A. V. Bobkov , D. N. Bogoslovsky , I. N. Boguslavsky , E. V. Boltushkin , E. E. Boos , V. E. Burtsev , Lei Chen , A. S. Chepurnov , M. Chiosso , A. Chumakov , O. D. Dalkarov , A. Datta , E. I. Demikhov , I. I. Denisenko , O. Yu. Denisov , V. N. Duginov , V. B. Dunin , K. Dygnarowicz , A. V. Efremov , R. El-Kholy , D. A. Eliseev , T. L. Enik , O. L. Fedin , G. A. Feofilov , Yu. N. Filatov , M. Finger , M. Finger , V. N. Frolov , G. Galinski , A. S. Galoyan , C. E Garsia Trapaga , O. P. Gavrishchuk , S. G. Gerasimov , L. Glonti , S. V. Goloskokov , G. A. Golovanov , A. A. Golubev , Golubykh S. M. , Goncharov P. V. , Grafov N. O. , Gribkov D. Y. , A. S. Gribovsky , A. O. Gridin , B. V. Grinyov , K. I. Gritsay , S. A. Gromov , V. A. Gromov , Yu. V. Gurchin , Yu. V. Gusakov , A. V. Guskov , F. Guzman , J. Haidenbauer , M. Havranek , A. V. Ivanov , N. Ya. Ivanov , A. Yu. Isupov , V. Jary , Shi-Hai Jia , D. Jokovic , A. Kaplii , A. V. Karpishkov , E. A. Kasianova , G. D. Kekelidze , S. V. Khabarov , P. R. Kharusov , A. N. Khrenov , V. T. Kim , N. V. Kirichkov , D. Yu. Kirin , I. Kishchin , A. Klekotko , Ya. Klopot , A. Kluev , E. S. Kokoulina , V. I. Komarov , A. M. Kondratenko , M. A. Kondratenko , I. Konorov , Yu. A. Kopylov , M. V. Korjik , P. S. Korovkin , A. Yu. Korzenev , E. V. Kostukov , A. Kotzinian , A. D. Kovalenko , V. N. Kovalenko , Kozhin M. A. , V. A. Kramarenko , V. N. Kruglov , A. Kubankin , Yu. Kubankin , S. Kuleshov , V. E. Kovtun , A. V. Kulikov , V. S. Kurbatov , R. Kurjata , S. A. Kutuzov , E. V. Kuznetsova , E. A. Ladygin , V. P. Ladygin , D. M. Larionova , D. Lednicky , R. Lednicky , Pei-Yu Li , Xiao-Mei Li , A. S. Lobko , E. Luschevskaya , A. I. L'vov , V. N. Lyashchenko , V. M. Lysan , V. Lyubovitskij , A. Maggiora , V. P. Maleev , A. Maltsev , T. V. Malykhina , A. M. Makankin , V. V. Makarenko , D. Maletic , D. B. Malkevich , M. Marcisovsky , E. V. Martovitsky , J. Marzec , M. M. Merkin , G. V. Meshcheriakov , Yu. M. Mitrankov , M. M. Mitrankova , E. O. Mitrofanov , B. Morozov , I. V. Moshkovsky , A. Movsisyan , S. N. Nagorniy , P. Yu. Nechaeva , M. A. Nefedov , Yu. A. Nefedov , M. A. Negodaev , G. Neue , D. N. Nikiforov , V. A. Nikitin , A. S. Nikolaev , D. A. Oleynik , G. A. Ososkov , D. Panzieri , B. Parsamyan , S. S. Parzhitsky , G. Pastuszak , V. V. Pavlov , A. A. Pavlova , I. S. Pelevanyuk , E. E. Perepelkin , D. V. Peshekhonov , A. Sh. Petrosyan , A. A. Piskun , V. V. Plotnikov , D. V. Podgainy , P. Polozov , R. V. Polyakova , V. V. Polyansky , V. V. Popov , J. Popule , I. Prochazka , I. K. Prokhorov , S. N. Reva , S. G. Reznikov , E. P. Rezvaya , J. -M. Richard , O. V. Rogachevsky , V. M. Romanov , A. I. Rudenko , M. A. Rumyantsev , V. Rusinov , N. A. Rybakov , A. Rychter , A. Rymbekova , A. B. Safonov , K. M. Salamatin , V. A. Saleev , A. G. Samartsev , A. A. Savenkov , M. Savic , A. A. Semak , V. N. Shaikovsky , A. A. Shavrin , A. I. Sheremeteva , S. S. Shimanskii , A. V. Shipilova , K. Shtejer , R. Shulyakovsky , A. A. Sinitsa , N. B. Skachkov , A. N. Skachkova , M. Slunecka , V. Sluneckova , A. A. Solin , A. V. Solin , Jin-Xin Song , V. V. Sotnikov , Peng-Fei Sun , S. Yu. Starikova , A. V. Stavinskiy , E. A. Streletskaya , M. Strikman , D. Strusik-Kotlozh , S. I. Suchkov , R. I. Sultanov , Hao Sun , D. N. Svirida , O. G. Tarasov , E. I. Tarkovskyi , A. Temerbayev , A. A. Terekhin , Tereschenko V. V. , Terkulov A. R. , Teryaev O. V. , Tishevsky A. V. , Tkachenko A. V. , A. A. V. V. Tokmenin , L. Tomasek , E. Tomasi-Gustafsson , N. P. Topchiev , N. D. Topilin , B. L. Topko , F. Tosello , A. Trifonov , Yu. A. Troyan. , N. O. Trunov , R. Tsenov , E. A. Usenko , V. V. Uzhinsky , Yu. N. Uzikov , F. F. Valiev , E. V. Vasilieva , V. V. Vechernin , A. Yu. Verkheev , L. S. Vertogradov , Yu. L. Vertogradova , V. A. Vesenkov , M. Virius , N. I. Volchansky , I. S. Volkov , P. V. Volkov , A. Vorobiev , V. Vrba , Qian Wang , I. P. Yudin , J. Zamora , N. I. Zamyatin , K. Zaremba , A. V. Zelenov , E. V. Zemlyanichkina , Yun-Yu Zhang , Jun-Wei Zhang , Ming-Rui Zhao , Qiang Zhao , Yu Zhi , A. S. Zhemchugov , A. Zhevlakov , N. M. Zhigareva , P. N. Zhmurin , I. A. Zhukov , N. I Zhuravlev. , M. Ziembicki , A. V. Zinin , E. V. Zubarev , M. I. Zuev

Spin physics with STAR

The STAR collaboration aims to study polarized proton-proton collisions at RHIC. The emphasis of the spin run this year is on transverse single spin asymmetries. Beyond 2001, we aim to determine directly and precisely the gluon…

High Energy Physics - Phenomenology · Physics 2019-08-14 Joanna Kiryluk

Search of critical effects in NA61/SHINE

NA61/SHINE is a multi-purpose experiment to study hadron-proton, hadron-nucleus and nucleus-nucleus collisions at the CERN Super Proton Synchrotron (SPS). The experiment performs unique measurements for the physics of strong interactions as…

Nuclear Experiment · Physics 2020-05-13 Magdalena Kuich

New Results from the Cosmic-Ray Program of the NA61/SHINE facility at the CERN SPS

The NA61/SHINE experiment at the SPS accelerator at CERN is a unique facility for the study of hadronic interactions at fixed target energies. The data collected with NA61/SHINE is relevant for a broad range of topics in cosmic-ray physics…

High Energy Astrophysical Phenomena · Physics 2019-09-17 Michael Unger , NA61 Collaboration

A prototype electromagnetic calorimeter for the MUonE experiment: status and first performance results

The MUonE experiment proposes a novel approach to determine the leading hadronic contribution to the muon g-2, from a precise measurement of the differential cross section of the $\mu-e$ elastic scattering, achievable by using the CERN SPS…

High Energy Physics - Experiment · Physics 2024-01-09 E. Spedicato

Looking for the phase transition - recent NA61/SHINE results

The fixed-target NA61/SHINE experiment (SPS CERN) looks for the critical point of strongly interacting matter and the properties of the onset of deconfinement. It is a two dimensional scan of measurements of particle spectra and…

High Energy Physics - Experiment · Physics 2018-07-01 Ludwik Turko

Possible measurements of GPDs at COMPASS

This paper presents the reactions which can be performed at COMPASS to study the Generalized Parton Distributions (GPDs). The high energy muon beam at CERN allows to measure Hard Exclusive Meson Production or Deeply Virtual Compton…

High Energy Physics - Experiment · Physics 2007-05-23 N. d'Hose , E. Burtin , P. A. M. Guichon , J. Marroncle , M. Moinester , J. Pochodzalla , A. Sandacz

Measurement of the Pion Polarizability at COMPASS

The value of the pion polarizability is predicted with high precision by Chiral Perturbation Theory. However, the existing experimental values are at tension with this prediction as well as among themselves. The COMPASS experiment at the…

High Energy Physics - Experiment · Physics 2014-02-13 Stefan Huber

Kaon spectrum revisited

The European Organization for Nuclear Research (CERN) has recently approved a world-unique QCD facility in which an updated version of the external M2 beam line of the CERN SPS in conjunction with a universal spectrometer of the COMPASS…

High Energy Physics - Phenomenology · Physics 2022-09-27 U. Taboada-Nieto , P. G. Ortega , D. R. Entem , F. Fernández , J. Segovia