Related papers: In-medium Properties of the {\eta}'-Meson from Pho…

In-medium Properties of \eta' Meson

Using the Crystal Barrel(CB)/TAPS detector system at the ELSA accelerator facility in Bonn the \eta' photoproduction off nuclei (C, Ca, Nb and Pb) was studied via the hadronic decay channel \eta' -> \pi^0\pi^0\eta . Recent results on the…

Nuclear Experiment · Physics 2012-04-16 TAPS Collaboration

Photoproduction of $\eta^{'}$ Mesons from Nuclei

The photoproduction of $\eta^{'}$-mesons from different nuclei has been measured using the Crystal Barrel(CB)/TAPS detector system at the ELSA accelerator facility in Bonn. Recent results on the in-medium properties of the $\eta^{'}$-meson,…

Nuclear Experiment · Physics 2019-08-14 Mariana Nanova

Transparency ratio in \gamma A -> \eta' A' and the in-medium \eta' width

The photoproduction of \eta'-mesons off different nuclei has been measured with the CBELSA/TAPS detector system for incident photon energies between 1500 - 2200 MeV. The transparency ratio has been deduced and compared to theoretical…

Nuclear Experiment · Physics 2015-06-04 M. Nanova , V. Metag , A. Ramos , E. Oset , I. Jaegle , K. Makonyi , K. Brinkmann , O. Bartholomy , D. Bayadilov , Y. A. Beloglazov , V. Crede , H. Dutz , A. Ehmanns , D. Elsner , K. Essig , R. Ewald , I. Fabry , M. Fuchs , Ch. Funke , R. Gregor , A. B. Gridnev , E. Gutz , S. Höffgen , P. Hoffmeister , I. Horn , J. Junkersfeld , H. Kalinowsky , Frank Klein , Friedrich Klein , E. Klempt , M. Konrad , B. Kopf , B. Krusche , J. Langheinrich , H. Löhner , I. V. Lopatin , J. Lotz , S. Lugert , D. Menze , T. Mertens , J. G. Messchendorp , C. Morales , R. Novotny , M. Ostrick , L. M. Pant , H. van Pee , M. Pfeiffer , A. Roy , A. Radkov , S. Schadmand , Ch. Schmidt , H. Schmieden , B. Schoch , A. Süle , V. V. Sumachev , T. Szczepanek , U. Thoma , D. Trnka , R. Varma , D. Walther , Ch. Wendel

Photoproduction of eta-mesons off nuclei for Eg < 2.2 GeV

Photoproduction of $\eta$ mesons off $^{12}$C, $^{40}$Ca, $^{93}$Nb, and $^{nat}$Pb nuclei has been measured with a tagged photon beam with energies between 0.6 and 2.2 GeV. The experiment was performed at the Bonn ELSA accelerator with the…

Nuclear Experiment · Physics 2008-12-18 T. Mertens , I. Jaegle , P. Muehlich , J. C. S. Bacelar , B. Bantes , O. Bartholomy , D. E. Bayadilov , R. Beck , Y. A. Beloglazov , R. Castelijns , V. Crede , H. Dutz , A. Ehmanns , D. Elsner , K. Essig , R. Ewald , I. Fabry , K. Fornet-Ponse , M. Fuchs , C. Funke , R. Gothe , R. Gregor , A. B. Gridnev , E. Gutz , S. Hoeffgen , P. Hoffmeister , I. Horn , J. Junkersfeld , H. Kalinowsky , S. Kammer , V. Kleber , Frank Klein , Friedrich Klein , E. Klempt , M. Konrad , M. Kotulla , B. Krusche , M. Lang , J. Langheinrich , H. Loehner , I. V. Lopatin , J. Lotz , S. Lugert , D. Menze , J. G. Messchendorp , V. Metag , C. Morales , U. Mosel , M. Nanova , D. V. Novinski , R. Novotny , M. Ostrick , L. M. Pant , H. van Pee , M. Pfeiffer , A. K. Radkov , A. Roy , S. Schadmand , C. Schmidt , H. Schmieden , B. Schoch , S. Shende , V. Sokhoyan , A. Suele , V. V. Sumachev , T. Szczepanek , U. Thoma , D. Trnka , R. Varma , D. Walther , C. Weinheimer , C. Wendel

In-Medium Properties of Hadrons

A diverse experimental program for the study of the photoproduction of mesons off nuclei has been carried out - and is still running - at the Mainz MAMI and Bonn ELSA electron accelerators with the TAPS, Crystal Barrel, and Crystal Ball…

Nuclear Experiment · Physics 2011-07-19 B. Krusche

Photoproduction of $\eta^\prime$ mesons off nuclei and their properties in the nuclear medium

We study the photoproduction of $\eta^\prime$ mesons from nuclei near the threshold within the collision model based on the nuclear spectral function. The model takes properly into account both primary photon-nucleon and secondary…

Nuclear Theory · Physics 2015-06-11 E. Ya. Paryev

Photoproduction of mesons from nuclei - In-medium properties of hadrons

Recent experimental results for the in-medium properties of hadrons obtained with photoproduction of mesons from nuclei are discussed. The experiments were done with the TAPS detector at the tagged photon beam of the MAMI accelerator in…

Nuclear Experiment · Physics 2009-11-10 B. Krusche

Study of in-medium $\eta^\prime$ properties in the ($\gamma$, ${\eta^\prime}p$) reaction on nuclei

We study the near-threshold photoproduction of $\eta^\prime$ mesons from nuclei in coincidence with forward going protons in the kinematical conditions of the Crystal Barrel/TAPS experiment, recently performed at ELSA. The calculations have…

Nuclear Theory · Physics 2016-01-20 E. Ya. Paryev

Experimental approaches for determining in-medium properties of hadrons from photo-nuclear reactions

Properties of hadrons and their modification within strongly interacting matter provide a link between experimental observables and Quantum Chromodynamics (QCD) in the non-perturbative sector. The sensitivity of various observables to…

Nuclear Experiment · Physics 2019-08-14 Volker Metag , Michaela Thiel , Henning Berghäuser , Stefan Friedrich , Boris Lemmer , Ulrich Mosel , Janus Weil

Modification of the $\omega$-Meson Lifetime in Nuclear Matter

The photo production of $\omega$ mesons on the nuclei C, Ca, Nb and Pb has been measured using the Crystal Barrel/TAPS detector at the ELSA tagged photon facility in Bonn. The dependence of the $\omega$ meson cross section on the nuclear…

Nuclear Experiment · Physics 2008-11-26 M. Kotulla , D. Trnka , P. Mühlich , G. Anton , J. C. S. Bacelar , O. Bartholomy , D. Bayadilov , Y. A. Beloglazov , R. Bogendörfer , R. Castelijns , V. Crede , H. Dutz , A. Ehmanns , D. Elsner , R. Ewald , I. Fabry , M. Fuchs , K. Essig , Ch. Funke , R. Gothe , R. Gregor , A. B. Gridnev , E. Gutz , S. Höffgen , P. Hoffmeister , I. Horn , J. Hössl , I. Jaegle , J. Junkersfeld , H. Kalinowsky , Frank Klein , Fritz Klein , E. Klempt , M. Konrad , B. Kopf , B. Krusche , J. Langheinrich , H. Löhner , I. V. Lopatin , J. Lotz , S. Lugert , D. Menze , J. G. Messchendorp , T. Mertens , V. Metag , U. Mosel , M. Nanova , R. Novotny , M. Ostrick , L. M. Pant , H. van Pee , M. Pfeiffer , A. Roy , A. Radkov , S. Schadmand , Ch. Schmidt , H. Schmieden , B. Schoch , S. Shende , G. Suft , V. V. Sumachev , T. Szczepanek , A. Süle , U. Thoma , R. Varma , D. Walther , Ch. Weinheimer , Ch. Wendel

First observation of in-medium modifications of the omega meson

The photoproduction of omega mesons on nuclei has been investigated using the Crystal Barrel/TAPS experiment at the ELSA tagged photon facility in Bonn. The aim is to study possible in-medium modifications of the omega meson via the…

Nuclear Experiment · Physics 2019-08-14 D. Trnka

Mesons in Nuclei: eta and omega mesons

Data on the photoproduction of omega mesons on nuclei have been re-analyzed in search for in-medium modifications. The data were taken with the Crystal Barrel(CB)/TAPS detector system at the ELSA accelerator facility in Bonn. The extracted…

Nuclear Experiment · Physics 2011-03-10 S. Schadmand

Determination of the {\eta}'-nucleus optical potential

The excitation function and momentum distribution of $\eta^\prime$ mesons have been measured in photon induced reactions on $^{12}{}$C in the energy range of 1250-2600 MeV. The experiment was performed with tagged photon beams from the ELSA…

Nuclear Experiment · Physics 2013-12-03 M. Nanova , V. Metag , E. Ya. Paryev , D. Bayadilov , B. Bantes , R. Beck , Y. A. Beloglazov , S. Böse , K. -T. Brinkmann , Th. Challand , V. Crede , T. Dahlke , F. Dietz , P. Drexler , H. Eberhardt , D. Elsner , R. Ewald , K. Fornet-Ponse , S. Friedrich , F. Frommberger , Ch. Funke , M. Gottschall , A. Gridnev , M. Grüner , E. Gutz , Ch. Hammann , D. Hammann , J. Hannappel , J. Hartmann , W. Hillert , P. Hoffmeister , Ch. Honisch , I. Jaegle , D. Kaiser , H. Kalinowsky , S. Kammer , I. Keshelashvili , V. Kleber , F. Klein , E. Klempt , B. Krusche , M. Lang , I. V. Lopatin , Y. Maghrbi , K. Makonyi , J. Müller , T. Odenthal , D. Piontek , S. Schaepe , Ch. Schmidt , H. Schmieden , R. Schmitz , T. Seifen , A. Thiel , U. Thoma , H. van Pee , D. Walther , Ch. Wendel , U. Wiedner , A. Wilson , A. Winnebeck , F. Zenke

In-medium $\omega$ mass from the $\gamma + Nb \to \pi^{0}\gamma + X$ reaction

Data on the photoproduction of $\omega$ mesons on nuclei have been re-analyzed in a search for in-medium modifications. The data were taken with the Crystal Barrel(CB)/TAPS detector system at the ELSA accelerator facility in Bonn. First…

Nuclear Experiment · Physics 2012-08-27 TAPS Collaboration , M. Nanova , V. Metag , G. Anton , J. C. S. Bacelar , O. Bartholomy , D. Bayadilov , Y. A. Beloglazov , R. Bogendörfer , R. Castelijns , V. Crede , H. Dutz , A. Ehmanns , D. Elsner , K. Essig , R. Ewald , I. Fabry , M. Fuchs , Ch. Funke , R. Gothe , R. Gregor , A. B. Gridnev , E. Gutz , S. Höffgen , P. Hoffmeister , I. Horn , J. Hössl , I. Jaegle , J. Junkersfeld , H. Kalinowsky , Frank Klein , Friedrich Klein , E. Klempt , M. Konrad , B. Kopf , M. Kotulla , B. Krusche , J. Langheinrich , H. Löhner , I. V. Lopatin , J. Lotz , S. Lugert , D. Menze , T. Mertens , J. G. Messchendorp , C. Morales , R. Novotny , M. Ostrick , L. M. Pant , H. van Pee , M. Pfeiffer , A. Roy , A. Radkov , S. Schadmand , Ch. Schmidt , H. Schmieden , B. Schoch , S. Shende , G. Suft , A. Süle , V. V. Sumachev , T. Szczepanek , U. Thoma , D. Trnka , R. Varma , D. Walther , Ch. Weinheimer , Ch. Wendel

Photoproduction of eta mesons from the neutron: cross sections and double polarization observable E

Photoproduction of $\eta$ mesons from neutrons} \abstract{Results from measurements of the photoproduction of $\eta$ mesons from quasifree protons and neutrons are summarized. The experiments were performed with the CBELSA/TAPS detector at…

Nuclear Experiment · Physics 2017-04-12 L. Witthauer , M. Dieterle , F. Afzal , A. V. Anisovich , B. Bantes , D. Bayadilov , R. Beck , M. Bichow , K. -T. Brinkmann , S. Böse , Th. Challand , V. Crede , H. Dutz , H. Eberhardt , D. Elsner , R. Ewald , K. Fornet-Ponse , St. Friedrich , F. Frommberger , Ch. Funke , St. Goertz , M. Gottschall , A. Gridnev , M. Grüner , E. Gutzınst , D. Hammann , Ch. Hammann , J. Hannappel , J. Hartmann , W. Hillert , Ph. Hoffmeister , Ch. Honisch , T. Jude , D. Kaiser , H. Kalinowsky , F. Kalischewski , S. Kammer , A. Käser , I. Keshelashvili , P. Klassen , V. Kleber , F. Klein , K. Koop , B. Krusche , M. Lang , I. Lopatin , Ph. Mahlberg , K. Makonyi , V. Metag , W. Meyer , J. Müller , J. Müllers , M. Nanova , V. Nikonov , D. Piontek , G. Reicherz , T. Rostomyan , A. Sarantsev , Ch. Schmidt , H. Schmieden , T. Seifen , V. Sokhoyan , K. Spieker , A. Thiel , U. Thoma , M. Urban , H. van Pee , N. K. Walford , D. Walther , Ch. Wendel , D. Werthmüller , A. Wilson , A. Winnebeck

Determination of the real part of the {\eta}'-Nb optical potential

The excitation function and momentum distribution of {\eta}' mesons have been measured in photoproduction off 93^Nb in the energy range of 1.2-2.9 GeV. The experiment has been performed with the combined Crystal Barrel and MiniTAPS detector…

Nuclear Experiment · Physics 2016-09-21 M. Nanova , S. Friedrich , V. Metag , E. Ya. Paryev , F. N. Afzal , D. Bayadilov , R. Beck , M. Becker , S. Böse , K. -T. Brinkmann , V. Crede , D. Elsner , F. Frommberger , M. Grtuner , E. Gutz , Ch. Hammann , J. Hannappel , J. Hartmann , W. Hillert , P. Hoffmeister , Ch. Honisch , T. Jude , F. Kalischewski , I. Keshelashvili , F. Klein , K. Koop , B. Krusche , M. Lang , K. Makonyi , F. Messi , J. Müller , J. Müllers , D. M. Piontek , T. Rostomyan , D. Schaab , C. Schmidt , H. Schmieden , R. Schmitz , T. Seifen , C. Sowa , K. Spieker , A. Thiel , U. Thoma , T. Tristerer , M. Urban , H. van Pee , D. Walther , C. Wendel , D. Werthmüller , U. Wiedner , A. Wilson , L. Witthauer , Y. Wunderlich , H. -G. Zaunick

Momentum dependence of the imaginary part of the $\omega$- and $\eta^\prime$-nucleus optical potential

The photoproduction of $\omega$ and $\eta^\prime$ mesons off carbon and niobium nuclei has been measured as a function of the meson momentum for incident photon energies of 1.2-2.9 GeV at the electron accelerator ELSA. The mesons have been…

Nuclear Experiment · Physics 2016-11-03 S. Friedrich , M. Nanova , V. Metag , F. N. Afzal , D. Bayadilov , B. Bantes , R. Beck , M. Becker , S. Böse , K. -T. Brinkmann , V. Crede , P. Drexler , H. Eberhardt , D. Elsner , F. Frommberger , Ch. Funke , M. Gottschall , M. Grüner , E. Gutz , Ch. Hammann , J. Hannappel , J. Hartmann , W. Hillert , Ph. Hoffmeister , Ch. Honisch , T. Jude , D. Kaiser , F. Kalischewski , I. Keshelashvili , F. Klein , K. Koop , B. Krusche , M. Lang , K. Makonyi , F. Messi , J. Müller , J. Müllers , D. -M. Piontek , T. Rostomyan , D. Schaab , Ch. Schmidt , H. Schmieden , R. Schmitz , T. Seifen , V. Sokhoyan , C. Sowa , K. Spieker , A. Thiel , U. Thoma , T. Triffterer , M. Urban , H. van Pee , D. Walther , Ch. Wendel , D. Werthmüller , U. Wiedner , A. Wilson , L. Witthauer , Y. Wunderlich , H. -G. Zaunick

Photoproduction of $\eta '$-mesons off the deuteron

Quasi-free photoproduction of $\eta '$ mesons off nucleons bound in the deuteron has been measured with the combined Crystal Barrel - TAPS detector. The experiment was done at a tagged photon beam of the ELSA electron accelerator in Bonn…

Nuclear Experiment · Physics 2015-03-17 I. Jaegle , T. Mertens , A. Fix , F. Huang , K. Nakayama , L. Tiator , A. V. Anisovich , J. C. S. Bacelar , B. Bantes , O. Bartholomy , D. E. Bayadilov , R. Beck , Y. A. Beloglazov , R. Castelijns , V. Crede , H. Dutz , D. Elsner , R. Ewald , F. Frommberger , C. Funke , R. Gregor , A. B. Gridnev , E. Gutz , W. Hillert , S. Hoeffgen , J. Junkersfeld , H. Kalinowsky , S. Kammer , V. Kleber , Frank Klein , Friedrich Klein , E. Klempt , M. Kotulla , B. Krusche , M. Lang , H. Loehner , I. V. Lopatin , S. Lugert , D. Menze , J. G. Messchendorp , V. Metag , V. A. Nikonov , M. Nanova , D. V. Novinski , R. Novotny , M. Ostrick , L. M. Pant , H. van Pee , M. Pfeiffer , A. Roy , A. V. Sarantsev , S. Schadmand , C. Schmidt , H. Schmieden , B. Schoch , S. V. Shende , V. Sokhoyan , A. Suele , V. V. Sumachev , T. Szczepanek , U. Thoma , D. Trnka , R. Varma , D. Walther , C. Wendel

Absorption of the $\omega$ and $\phi$ Mesons in Nuclei

Due to their long lifetimes, the $\omega$ and $\phi$ mesons are the ideal candidates for the study of possible modifications of the in-medium meson-nucleon interaction through their absorption inside the nucleus. During the E01-112…

Nuclear Experiment · Physics 2014-11-21 M. H. Wood , R. Nasseripour , M. Paolone , C. Djalali , D. P. Weygand , the CLAS Collaboration

$\eta$-meson in nuclear matter

The $\eta$-nucleon ($\eta$N) interactions are deduced from the heavy baryon chiral perturbation theory up to the next-to-leading-order terms. Combining the relativistic mean-field theory for nucleon system, we have studied the in-medium…

Nuclear Theory · Physics 2009-11-11 X. H. Zhong , G. X. Peng , Lei Li , P. Z. Ning