Related papers: Probing resonance matter with virtual photons

Origin of the low-mass electron pair excess in light nucleus-nucleus collisions

We report measurements of electron pair production in elementary p+p and d+p reactions at 1.25 GeV/u with the HADES spectrometer. For the first time, the electron pairs were reconstructed for n+p reactions by detecting the proton spectator…

Nuclear Experiment · Physics 2014-11-20 The HADES Collaboration , G. Agakishiev , A. Balanda , D. Belver , A. V. Belyaev , A. Blanco , M. Böhmer , J. L. Boyard , P. Braun-Munzinger , P. Cabanelas , E. Castro , S. Chernenko , T. Christ , M. Destefanis , J. Díaz , F. Dohrmann , A. Dybczak , L. Fabbietti , O. V. Fateev , P. Finocchiaro , P. Fonte , J. Friese , I. Fröhlich , T. Galatyuk , J. A. Garzón , R. Gernhäuser , A. Gil , C. Gilardi , M. Golubeva , D. González-Díaz , F. Guber , T. Hennino , R. Holzmann , I. Iori , A. Ivashkin , M. Jurkovic , B. Kämpfer , T. Karavicheva , D. Kirschner , I. Koenig , W. Koenig , B. W. Kolb , R. Kotte , F. Krizek , R. Krücken , W. Kühn , A. Kugler , A. Kurepin , S. Lang , J. S. Lange , K. Lapidus , T. Liu , L. Lopes , M. Lorenz , L. Maier , A. Mangiarotti , J. Markert , V. Metag , B. Michalska , J. Michel , E. Morinière , J. Mousa , C. Müntz , L. Naumann , J. Otwinowski , Y. C. Pachmayer , M. Palka , Y. Parpottas , V. Pechenov , O. Pechenova , J. Pietraszko , W. Przygoda , B. Ramstein , A. Reshetin , A. Rustamov , A. Sadovsky , P. Salabura , A. Schmah , E. Schwab , Yu. G. Sobolev , S. Spataro , B. Spruck , H. Ströbele , J. Stroth , C. Sturm , M. Sudol , A. Tarantola , K. Teilab , P. Tlusty , M. Traxler , R. Trebacz , H. Tsertos , V. Wagner , M. Weber , M. Wisniowski , T. Wojcik , J. Wüstenfeld , S. Yurevich , Y. V. Zanevsky , P. Zhou

Analysis of Dilepton Invariant Mass Spectrum in C+C at 2 and 1 AGeV

Recently the HADES collaboration has published the invariant mass spectrum of $e^+e^-$ pairs, dN/dM$_{e^+e^-}$, produced in C+C collisions at 2 AGeV. Using electromagnetic probes, one hopes to get in this experiment information on hadron…

Nuclear Theory · Physics 2008-11-26 M. Thomère , C. Hartnack , G. Wolf , J. Aichelin

Elementary Collisions with HADES

The "High Acceptance DiElectron Spectrometer" (HADES) at GSI, Darmstadt, is investigating the production of e+e- pairs in A+A, p+A and N+N collisions. The latter program allows for the reconstruction of individual sources. This strategy…

Nuclear Experiment · Physics 2019-08-13 I. Froehlich

Meson and di-electron production with HADES

The HADES experiment, installed at GSI, Darmstadt, measures di-electron production in A+A, p/pi+N and p/pi+A collisions. Here, the pi0 and eta Dalitz decays have been reconstructed in the exclusive p+p reaction at 2.2 GeV to form a…

Nuclear Experiment · Physics 2009-11-13 I. Froehlich

Dielectron production in pp and dp collisions at 1.25 GeV/u with HADES

Inclusive production of e+e--pairs in pp and dp collisions at a kinetic beam energy of 1.25 GeV/u has been studied with the HADES spectrometer. In the latter case, the main goal was to obtain data on pair emission in quasi-free np…

Nuclear Experiment · Physics 2019-08-13 K. Lapidus

Di-electron spectrum at mid-rapidity in $p+p$ collisions at $\sqrt{s} = 200$ GeV

We report on mid-rapidity mass spectrum of di-electrons and cross sections of pseudoscalar and vector mesons via $e^{+}e^{-}$ decays, from $\sqrt{s} = 200$ GeV $p+p$ collisions, measured by the large acceptance experiment STAR at RHIC. The…

Nuclear Experiment · Physics 2012-09-11 L. Adamczyk , G. Agakishiev , M. M. Aggarwal , Z. Ahammed , A. V. Alakhverdyants , I. Alekseev , J. Alford , B. D. Anderson , C. D. Anson , D. Arkhipkin , E. Aschenauer , G. S. Averichev , J. Balewski , A. Banerjee , Z. Barnovska , D. R. Beavis , R. Bellwied , M. J. Betancourt , R. R. Betts , A. Bhasin , A. K. Bhati , H. Bichsel , J. Bielcik , J. Bielcikova , L. C. Bland , I. G. Bordyuzhin , W. Borowski , J. Bouchet , A. V. Brandin , S. G. Brovko , E. Bruna , S. Bueltmann , I. Bunzarov , T. P. Burton , J. Butterworth , X. Z. Cai , H. Caines , M. Calderón de la Barca Sánchez , D. Cebra , R. Cendejas , M. C. Cervantes , P. Chaloupka , Z. Chang , S. Chattopadhyay , H. F. Chen , J. H. Chen , J. Y. Chen , L. Chen , J. Cheng , M. Cherney , A. Chikanian , W. Christie , P. Chung , J. Chwastowski , M. J. M. Codrington , R. Corliss , J. G. Cramer , H. J. Crawford , X. Cui , A. Davila Leyva , L. C. De Silva , R. R. Debbe , T. G. Dedovich , J. Deng , R. Derradi de Souza , S. Dhamija , L. Didenko , F. Ding , A. Dion , P. Djawotho , X. Dong , J. L. Drachenberg , J. E. Draper , C. M. Du , L. E. Dunkelberger , J. C. Dunlop , L. G. Efimov , M. Elnimr , J. Engelage , G. Eppley , L. Eun , O. Evdokimov , R. Fatemi , S. Fazio , J. Fedorisin , R. G. Fersch , P. Filip , E. Finch , Y. Fisyak , C. A. Gagliardi , D. R. Gangadharan , F. Geurts , A. Gibson , S. Gliske , Y. N. Gorbunov , O. G. Grebenyuk , D. Grosnick , S. Gupta , W. Guryn , B. Haag , O. Hajkova , A. Hamed , L-X. Han , J. W. Harris , J. P. Hays-Wehle , S. Heppelmann , A. Hirsch , G. W. Hoffmann , D. J. Hofman , S. Horvat , B. Huang , H. Z. Huang , P. Huck , T. J. Humanic , L. Huo , G. Igo , W. W. Jacobs , C. Jena , J. Joseph , E. G. Judd , S. Kabana , K. Kang , J. Kapitan , K. Kauder , H. W. Ke , D. Keane , A. Kechechyan , A. Kesich , D. Kettler , D. P. Kikola , J. Kiryluk , I. Kisel , A. Kisiel , V. Kizka , S. R. Klein , D. D. Koetke , T. Kollegger , J. Konzer , I. Koralt , L. Koroleva , W. Korsch , L. Kotchenda , P. Kravtsov , K. Krueger , Kulakov , L. Kumar , M. A. C. Lamont , J. M. Landgraf , S. LaPointe , J. Lauret , A. Lebedev , R. Lednicky , J. H. Lee , W. Leight , M. J. LeVine , C. Li , L. Li , W. Li , X. Li , X. Li , Y. Li , Z. M. Li , L. M. Lima , M. A. Lisa , F. Liu , T. Ljubicic , W. J. Llope , R. S. Longacre , Y. Lu , X. Luo , A. Luszczak , G. L. Ma , Y. G. Ma , D. M. M. D. Madagodagettige Don , D. P. Mahapatra , R. Majka , O. I. Mall , S. Margetis , C. Markert , H. Masui , H. S. Matis , D. McDonald , T. S. McShane , S. Mioduszewski , M. K. Mitrovski , Y. Mohammed , B. Mohanty , M. M. Mondal , B. Morozov , M. G. Munhoz , M. K. Mustafa , M. Naglis , B. K. Nandi , Md. Nasim , T. K. Nayak , J. M. Nelson , L. V. Nogach , J. Novak , G. Odyniec , A. Ogawa , K. Oh , A. Ohlson , V. Okorokov , E. W. Oldag , R. A. N. Oliveira , D. Olson , P. Ostrowski , M. Pachr , B. S. Page , S. K. Pal , Y. X. Pan , Y. Pandit , Y. Panebratsev , T. Pawlak , B. Pawlik , H. Pei , C. Perkins , W. Peryt , P. Pile , M. Planinic , J. Pluta , D. Plyku , N. Poljak , J. Porter , A. M. Poskanzer , C. B. Powell , D. Prindle , C. Pruneau , N. K. Pruthi , M. Przybycien , P. R. Pujahari , J. Putschke , H. Qiu , R. Raniwala , S. Raniwala , R. L. Ray , R. Redwine , R. Reed , C. K. Riley , H. G. Ritter , J. B. Roberts , O. V. Rogachevskiy , J. L. Romero , J. F. Ross , L. Ruan , J. Rusnak , N. R. Sahoo , I. Sakrejda , S. Salur , A. Sandacz , J. Sandweiss , E. Sangaline , A. Sarkar , J. Schambach , R. P. Scharenberg , A. M. Schmah , B. Schmidke , N. Schmitz , T. R. Schuster , J. Seele , J. Seger , P. Seyboth , N. Shah , E. Shahaliev , M. Shao , B. Sharma , M. Sharma , S. S. Shi , Q. Y. Shou , E. P. Sichtermann , R. N. Singaraju , M. J. Skoby , D. Smirnov , N. Smirnov , D. Solanki , P. Sorensen , U. G. deSouza , H. M. Spinka , B. Srivastava , T. D. S. Stanislaus , S. G. Steadman , J. R. Stevens , R. Stock , M. Strikhanov , B. Stringfellow , A. A. P. Suaide , M. C. Suarez , M. Sumbera , X. M. Sun , Y. Sun , Z. Sun , B. Surrow , D. N. Svirida , T. J. M. Symons , A. Szanto de Toledo , J. Takahashi , A. H. Tang , Z. Tang , L. H. Tarini , T. Tarnowsky , D. Thein , J. H. Thomas , J. Tian , A. R. Timmins , D. Tlusty , M. Tokarev , T. A. Trainor , S. Trentalange , R. E. Tribble , P. Tribedy , B. A. Trzeciak , O. D. Tsai , J. Turnau , T. Ullrich , D. G. Underwood , G. Van Buren , G. van Nieuwenhuizen , J. A. Vanfossen, , R. Varma , G. M. S. Vasconcelos , F. Videbæk , Y. P. Viyogi , S. Vokal , S. A. Voloshin , A. Vossen , M. Wada , F. Wang , G. Wang , H. Wang , J. S. Wang , Q. Wang , X. L. Wang , Y. Wang , G. Webb , J. C. Webb , G. D. Westfall , C. Whitten , H. Wieman , S. W. Wissink , R. Witt , W. Witzke , Y. F. Wu , Z. Xiao , W. Xie , K. Xin , H. Xu , N. Xu , Q. H. Xu , W. Xu , Y. Xu , Z. Xu , L. Xue , Y. Yang , Y. Yang , P. Yepes , Y. Yi , K. Yip , I-K. Yoo , M. Zawisza , H. Zbroszczyk , J. B. Zhang , S. Zhang , W. M. Zhang , X. P. Zhang , Y. Zhang , Z. P. Zhang , F. Zhao , J. Zhao , C. Zhong , X. Zhu , Y. H. Zhu , Y. Zoulkarneeva , M. Zyzak

Dielectron Production in C+C Collisions at 1 GeV/u and the Solution to the DLS Puzzle

The production of e+e- pairs in C+C collisions at 1 GeV/u was investigated with the HADES experiment at GSI, Darmstadt. In the invariant-mass region $ 0.15\: GeV/c^{2} \leq M_{ee} \leq 0.5\: GeV/c^{2}$ the measured pair yield shows a strong…

Nuclear Experiment · Physics 2019-08-13 Y. C. Pachmayer

Analysis of the exclusive final state npe$^+$e$^-$ in quasi-free np reaction

We report on the investigation of dielectron production in tagged quasi-free neutron-proton collisions by using a deuteron beam of kinetic energy 1.25 GeV/u inpinging on a liquid hydrogen target. Our measurements with HADES confirm a…

Nuclear Experiment · Physics 2017-09-15 J. Adamczewski-Musch , O. Arnold , E. T. Atomssa , C. Behnke , A. Belounnas , A. Belyaev , J. C. Berger-Chen , J. Biernat , A. Blanco , C. Blume , M. Böhmer , P. Bordalo , S. Chernenko , L. Chlad , C. Deveaux , J. Dreyer , A. Dybczak , E. Epple , L. Fabbietti , O. Fateev , P. Filip , P. Finocchiaro , P. Fonte , C. Franco , J. Friese , I. Fröhlich , T. Galatyuk , J. A. Garzón , R. Gernhäuser , M. Golubeva , F. Guber , M. Gumberidze , S. Harabasz , T. Heinz , T. Hennino , S. Hlavac , C. Höhne , R. Holzmann , A. Ierusalimov , A. Ivashkin , B. Kämpfer , T. Karavicheva , B. Kardan , I. Koenig , W. Koenig , B. W. Kolb , G. Korcyl , G. Kornakov , R. Kotte , W. Kühn , A. Kugler , T. Kunz , A. Kurepin , A. Kurilkin , P. Kurilkin , V. Ladygin , R. Lalik , K. Lapidus , A. Lebedev , T. Liu , L. Lopes , M. Lorenz , T. Mahmoud , L. Maier , A. Mangiarotti , J. Markert , S. Maurus , V. Metag , J. Michel , E. Morinière , D. M. Mihaylov , S. Morozov , C. Müntz , R. Münzer , L. Naumann , K. N. Nowakowski , M. Palka , Y. Parpottas , V. Pechenov , O. Pechenova , O. Petukhov , J. Pietraszko , W. Przygoda , S. Ramos , B. Ramstein , A. Reshetin , P. Rodriguez-Ramos , P. Rosier , A. Rost , A. Sadovsky , P. Salabura , T. Scheib , H. Schuldes , E. Schwab , F. Scozzi , F. Seck , P. Sellheim , J. Siebenson , L. Silva , Yu. G. Sobolev , S. Spataro , H. Ströbele , J. Stroth , P. Strzempek , C. Sturm , O. Svoboda , P. Tlusty , M. Traxler , H. Tsertos , E. Usenko , V. Wagner , C. Wendisch , M. G. Wiebusch , J. Wirth , Y. Zanevsky , P. Zumbruch , A. V. Sarantsev

Production and evolution path of dileptons at HADES energies

Dilepton production in intermediate energy nucleus-nucleus collisions as well as in elementary proton-proton reactions is analysed within the UrQMD transport model. For C+C collisions at 1 AGeV and 2 AGeV the resulting invariant mass…

Nuclear Theory · Physics 2009-07-09 K. Schmidt , E. Santini , S. Vogel , C. Sturm , M. Bleicher , H. Stoecker

Measurements of non-photonic electrons with the STAR experiment

Non-photonic electrons (NPE), produced by semileptonic decays of D and B mesons, are good probes to study the properties of hot and dense medium created in relativistic heavy ion collisions at RHIC. Studies of heavy quark production in p+p…

High Energy Physics - Experiment · Physics 2019-08-13 Olga Rusňáková

Charged pion production in C+C and Ar+KCl collisions measured with HADES

Results of a study of charged pion production in 12C+12C collisions at incident beam energies of 1A GeV and 2A GeV, and 40Ar+natKCl at 1.76AGeV, using the spectrometer HADES at GSI, are presented. We have performed a measurement of the…

Nuclear Experiment · Physics 2009-06-15 The HADES Collaboration , P. Tlusty , G. Agakishiev , A. Balanda , G. Bellia , D. Belver , A. Belyaev , A. Blanco , M. Boehmer , J. L. Boyard , P. Braun-Munzinger , P. Cabanelas , E. Castro , S. Chernenko , T. Christ , M. Destefanis , J. Diaz , F. Dohrmann , A. Dybczak , L. Fabbietti , O. Fateev , P. Finocchiaro , P. Fonte , J. Friese , I. Froehlich , T. Galatyuk , J. A. Garzon , R. Gernhaeuser , A. Gil , C. Gilardi , M. Golubeva , D. Gonzalez-Diaz , E. Grosse , F. Guber , M. Heilmann , T. Hennino , R. Holzmann , A. Ierusalimov , I. Iori , A. Ivashkin , M. Jurkovic , B. Kaempfer , K. Kanaki , T. Karavicheva , D. Kirschner , I. Koenig , W. Koenig , B. W. Kolb , R. Kotte , A. Kozuch , A. Krasa , F. Krizek , R. Kruecken , W. Kuehn , A. Kugler , A. Kurepin , J. Lamas-Valverde , S. Lang , J. S. Lange , K. Lapidus , T. Liu , L. Lopes , M. Lorenz , L. Maier , A. Mangiarotti , J. Marin , J. Markert , V. Metag , B. Michalska , J. Michel , D. Mishra , E. Moriniere , J. Mousa , C. Muentz , L. Naumann , R. Novotny , J. Otwinowski , Y. C. Pachmayer , M. Palka , Y. Parpottas , V. Pechenov , O. Pechenova , T. Perez Cavalcanti , J. Pietraszko , W. Przygoda , B. Ramstein , A. Reshetin , A. Rustamov , A. Sadovsky , P. Salabura , A. Schmah , R. Simon , Yu. G. Sobolev , S. Spataro , B. Spruck , H. Stroebele , J. Stroth , C. Sturm , M. Sudol , A. Tarantola , K. Teilab , M. Traxler , R. Trebacz , H. Tsertos , I. Veretenkin , V. Wagner , M. Weber , M. Wisniowski , J. Wuestenfeld , S. Yurevich , Y. Zanevsky , P. Zhou , P. Zumbruch

Inclusive Dielectron Production in Ar+KCl Collisions at 1.76 AGeV studied with HADES

Results of the HADES measurement of inclusive dielectron production in Ar+KCl collisions at a kinetic beam energy of 1.76 AGeV are presented. For the first time, high mass resolution spectroscopy was performed. The invariant mass spectrum…

Nuclear Experiment · Physics 2010-04-22 The HADES Collaboration , F. Krizek , G. Agakishiev , A. Balanda , G. Bellia , D. Belver , A. Belyaev , A. Blanco , M. Boehmer , J. L. Boyard , P. Braun-Munzinger , P. Cabanelas , E. Castro , S. Chernenko , T. Christ , M. Destefanis , J. Diaz , F. Dohrmann , A. Dybczak , L. Fabbietti , O. Fateev , P. Finocchiaro , P. Fonte , J. Friese , I. Froehlich , T. Galatyuk , J. A. Garzon , R. Gernhaeuser , A. Gil , C. Gilardi , M. Golubeva , D. Gonzalez-Diaz , E. Grosse , F. Guber , M. Heilmann , T. Hennino , R. Holzmann , A. Ierusalimov , I. Iori , A. Ivashkin , M. Jurkovic , B. Kaempfer , K. Kanaki , T. Karavicheva , D. Kirschner , I. Koenig , W. Koenig , B. W. Kolb , R. Kotte , A. Kozuch , A. Krasa , R. Kruecken , W. Kuehn , A. Kugler , A. Kurepin , J. Lamas-Valverde , S. Lang , J. S. Lange , K. Lapidus , T. Liu , L. Lopes , M. Lorenz , L. Maier , A. Mangiarotti , J. Marin , J. Markert , V. Metag , B. Michalska , J. Michel , D. Mishra , E. Moriniere , J. Mousa , C. Muentz , L. Naumann , R. Novotny , J. Otwinowski , Y. C. Pachmayer , M. Palka , Y. Parpottas , V. Pechenov , O. Pechenova , T. Perez Cavalcanti , J. Pietraszko , W. Przygoda , B. Ramstein , A. Reshetin , A. Rustamov , A. Sadovsky , P. Salabura , A. Schmah , R. Simon , Yu. G. Sobolev , S. Spataro , B. Spruck , H. Stroebele , J. Stroth , C. Sturm , M. Sudol , A. Tarantola , K. Teilab , P. Tlusty , M. Traxler , R. Trebacz , H. Tsertos , I. Veretenkin , V. Wagner , M. Weber , M. Wisniowski , J. Wuestenfeld , S. Yurevich , Y. Zanevsky , P. Zhou , P. Zumbruch

Dielectron production in 12C+12C collisions at 2 AGeV with HADES

The invariant-mass spectrum of $e^+ e^-$ pairs produced in $^{12}$C+$^{12}$C collisions at an incident energy of 2 GeV per nucleon has been measured for the first time. The measured pair production probabilities span over five orders of…

Nuclear Experiment · Physics 2012-03-22 Piotr Salabura

Inclusive production of protons, anti-protons, neutrons, deuterons and tritons in p+C collisions at 158 GeV/c beam momentum

The production of protons, anti-protons, neutrons, deuterons and tritons in minimum bias p+C interactions is studied using a sample of 385 734 inelastic events obtained with the NA49 detector at the CERN SPS at 158 GeV/c beam momentum. The…

High Energy Physics - Experiment · Physics 2015-03-20 The NA49 Collaboration , B. Baatar , G. Barr , J. Bartke , L. Betev , O. Chvala , J. Dolejsi , V. Eckardt , H. G. Fischer , Z. Fodor , A. Karev , V. Kolesnikov , M. Kowalski , M. Makariev , A. Malakhov , M. Mateev , G. Melkumov , A. Rybicki , N. Schmitz , P. Seyboth , R. Stock , G. Tinti , D. Varga , G. Vesztergombi , S. Wenig

Light Fragment Yields from Central Au + Au Collisions at 11.5 A GeV/c

Inclusive double differential multiplicities of deuterons, ^3H, ^3He, and ^4He measured by E877 for 11.5 A GeV/c Au+Au collisions at the AGS are presented. Light fragments at beam-rapidity are measured for the first time at AGS energies.…

Nuclear Experiment · Physics 2011-08-19 The E877 Collaboration , J. Barrette

Hydrodynamical Description of 200 A GeV/c S+Au Collisions: Hadron and Electromagnetic Spectra

We study relativistic S+Au collisions at 200 A GeV/c using a hydrodynamical approach. We test various equations of state (EOSs), which are used to describe the strongly interacting matter at densities attainable in the CERN-SPS heavy ion…

Nuclear Theory · Physics 2008-11-26 Josef Sollfrank , Pasi Huovinen , Markku Kataja , P. V. Ruuskanen , Madappa Prakash , Raju Venugopalan

Recent results from HADES on electron pair production in relativistic heavy-ion collisions

Systematic investigations of dilepton production are performed at the SIS accelerator of GSI with the HADES spectrometer. The goal of this program is a detailed understanding of di-electron emission from hadronic systems at moderate…

Nuclear Experiment · Physics 2014-11-20 The HADES Collaboration , T. Galatyuk , G. Agakishiev , A. Balanda , D. Belver , A. V. Belyaev , A. Blanco , M. Böhmer , J. L. Boyard , P. Braun-Munzinger , P. Cabanelas , E. Castro , S. Chernenko , T. Christ , M. Destefanis , J. Díaz , F. Dohrmann , A. Dybczak , L. Fabbietti , O. V. Fateev , P. Finocchiaro , P. Fonte , J. Friese , I. Fröhlich , J. A. Garzón , R. Gernhäuser , A. Gil , C. Gilardi , M. Golubeva , D. González-Díaz , F. Guber , T. Hennino , R. Holzmann , I. Iori , A. Ivashkin , M. Jurkovic , B. Kämpfer , T. Karavicheva , D. Kirschner , I. Koenig , W. Koenig , B. W. Kolb , R. Kotte , F. Krizek , R. Krücken , W. Kühn , A. Kugler , A. Kurepin , S. Lang , J. S. Lange , K. Lapidus , T. Liu , L. Lopes , M. Lorenz , L. Maier , A. Mangiarotti , J. Markert , V. Metag , B. Michalska , J. Michel , E. Morinière , J. Mousa , C. Müntz , L. Naumann , J. Otwinowski , Y. C. Pachmayer , M. Palka , Y. Parpottas , V. Pechenov , O. Pechenova , J. Pietraszko , W. Przygoda , B. Ramstein , A. Reshetin , A. Rustamov , A. Sadovsky , P. Salabura , A. Schmah , E. Schwab , Yu. G. Sobolev , S. Spataro , B. Spruck , H. Ströbele , J. Stroth , C. Sturm , M. Sudol , A. Tarantola , K. Teilab , P. Tlusty , M. Traxler , R. Trebacz , H. Tsertos , V. Wagner , M. Weber , M. Wisniowski , T. Wojcik , J. Wüstenfeld , S. Yurevich , Y. V. Zanevsky , P. Zhou

Measurement of low mass dielectron continuum in sqrt(s_NN)=200GeV Au+Au collisions with the PHENIX experiment at RHIC

Electromagnetic probes are ideally suited to investigate hot and dense matter produced in high energy heavy ion collisions. They do not undergo strong interactions and thus probe the time evolution of the collision. The dielectron continuum…

Nuclear Experiment · Physics 2015-06-26 Alberica Toia

Dilepton measurements with HADES

HADES is the only operating dielectron spectrometer in the energy regime 1-2 AGeV. The physics program aims at a systematic investigation of dielectron production in heavy ion as well as elementary and pion-induced reactions. This…

Nuclear Experiment · Physics 2019-08-13 C. Muentz

e+e- Pairs: a clock and a thermometer of heavy ion collisions

Recently, there is growing evidence that a new state of matter is formed in sqrt(s_NN)= 200 GeV Au+Au collisions at RHIC: a strongly coupled Quark Gluon Plasma of partonic degrees of freedom which develops a collective motion. Dilepton…

Nuclear Experiment · Physics 2008-11-26 Alberica Toia