B.4 In-medium properties of mesons

K.-T. Brinkmann

In addition to the measurement of the transparency ratio and the meson line shape, studied in the second funding period, further information on the meson-nucleus interaction can be obtained from studying meson-nucleus bound states. The search for ω mesic states has been started in a pilot experiment and should be continued with improved statistics in the final funding period. This study should be extended to the η’ meson for which a relatively narrow in-medium width of ≈20 MeV has been measured which is favorable for identifying η’ mesic states.

Publications

Published and accepted papers

M. Lutz et al., [V. Metag]

„Resonances in QCD″,
Nucl. Phys. A 948 (2016) 93

F. Dietz [CBELSA/TAPS Collaboration]

„Photoproduction of ω-mesons off protons and neutrons″,
Eur. Phys. J. A 51 (2015) 6

V. Metag

„Determining the meson-nucleus potential - on the way to mesic states″,
Hyp. Int. 243 (2015) 25

M. Nanova [CBELSA/TAPS Collaboration]

„Experimental results on the ω- and η'-nucleus potential - on the way to mesic states″,
Eur. Phys. J. Web Conf. 97 (2015) 00022

S. Friedrich [CBELSA/TAPS Collaboration]

„Experimental constraints on the ω-nucleus real potential″,
Phys. Lett. B 736 (2014) 26

J. Weil, U. Mosel, V. Metag

„Investigating in-medium properties of the ω meson via the ω → π0 gamma decay″,
Phys. Lett. B 723 (2013) 120

M. Thiel et al.

„In-medium modifications of the ω meson near the production threshold″,
Eur. Phys. J. A 49 (2013) 132

M. Nanova [CBELSA/TAPS Collaboration]

„Determination of the η'-nucleus optical potential″,
Phys. Lett. B 727 (2013) 417

M. Nanova [CBELSA/TAPS Collaboration]

„New experimental approaches to study the in-medium properties of the η' meson″,
PoS Bormio2013 (2013) 054

V. Metag et al.

„Experimental approaches for determining in-medium properties of hadrons from photo-nuclear reactions″,
Prog. Part. Nucl. Phys. 67 (2012) 530

M. Nanova [CBELSA/TAPS Collaboration]

„In-medium properties of η' meson″,
Prog. Part. Nucl. Phys. 67 (2012) 424

M. Nanova [CBELSA/TAPS Collaboration]

„In-medium properties of the η' meson from photo nuclear reactions″,
Eur. Phys. J. Web Conf. 37 (2012) 03007

V. Metag

„In-medium properties of hadrons″,
Eur. Phys. J. Web Conf. 37 (2012) 01025

M. Nanova, V. Metag, A. Ramos, E. Oset, I. Jaegle, K. Makonyi, K. Brinkmann and O. Bartholomy et al. [CBELSA/TAPS Collaboration]

„Transparency ratio in γA → η'A' and the in-medium η' width″,
Phys. Lett. B 710 (2012) 600, [arXiv:1204.2914 [nucl-ex]].

H. Berghäuser, V. Metag, A. Starostin et al.

„Determination of the η transition factor in the γ p → p η → p γ e⁺e^- reaction″,
Phys. Lett. B 701 (2011) 562.

M. Nanova, J. Weil, S. Friedrich, V. Metag, U. Mosel, M. Thiel et al. [CBELSA/TAPS Collaboration]

„Photoproduction of ω mesons on nuclei near the production threshold″,
Eur. Phys. J. A 47 (2011) 16, [arXiv:1008.4520 [nucl-ex]].

M. Nanova [CBELSA/TAPS Collaboration]

„In-medium properties of ω and η' mesons in elementary reactions″,
AIP Conf. Proc. 1388 (2011) 72.

V. Metag

„The search for in-medium modifications of mesons - experimental status″,
AIP Conf. Proc. 1322 (2010) 73.

M. Abdel-Bary, ..., K.-Th. Brinkmann et al. [COSY-TOF Collaboration]

„Systematic study of the pp → pp ω reaction″,
Eur. Phys. J. A 44 (2010) 7, [arXiv:1001.3043 [nucl-ex]].

M. Nanova [CBELSA/TAPS Collaboration]

„Modification of the ω meson properties in the nuclear medium″,
AIP Conf. Proc. 1322 (2010) 108.

M. Nanova, V. Metag et al. [CBELSA/TAPS Collaboration]

„In-medium ω mass from the γ + Nb → π⁰γ + X reaction″,
Phys. Rev. C 82 (2010) 035209, [arXiv:1005.5694 [nucl-ex]].

V. Metag

„Vector mesons in strongly interacting matter″,
Pramana 75 (2010) 195.

M. Nanova [CBELSA/TAPS Collaboration]

„In-medium modifications of the ω meson″,
AIP Conf. Proc. 1257 (2010) 705.

S. Leupold, V. Metag, and U. Mosel

„Hadrons in strongly interacting matter″,
Int. J. Mod. Phys. E 19 (2010) 147, [arXiv:0907.2388 [nucl-th]].

M. Kotulla, V. Metag, U. Mosel

„Hadronen in Medium″,
Physik Journal 8 (2009) Nr.3 41.

V. Metag

„Medium modifications of vector mesons in elementary reactions and heavy-ion collisions″,
Prog. Part. Nucl. Phys. 61 (2008) 245, [arXiv:0711.4709 [nucl-ex]].

M. Kotulla, D. Trnka, P. Mühlich et al. [CBELSA/TAPS Collaboration]

„Modification of the ω-Meson Lifetime in Nuclear Medium″,
Phys Rev. Lett. 100 (2008) 192302, [arXiv:0802.0989 [nucl-ex]].

M. Nanova et al. [CBELSA/TAPS Collaboration]

„K⁰ π⁰ Σ⁺ and K*⁰ Σ⁺ photoproduction off the proton″,
Eur. Phys. J. A 35 (2008) 333, [arXiv:0803.2146 [nucl-ex]].

V. Metag

„Medium modifications of vector mesons in elementary reactions and heavy-ion collisions″,
J. Phys. G 34 (2007) 397.

D. Trnka

„Investigation of in-medium omega photoproduction″,
Pramana 66 (2006) 915.

D. Trnka

„In-medium omega photoproduction with CBELSA/TAPS″,
Acta Phys. Hung. A 27 (2006) 133.

V. Metag

„In-medium properties of hadrons: Recent experimental results and perspectives″,
Pramana 66 (2006) 833.

D. Trnka et al. [CBELSA/TAPS Collaboration]

„Observation of in-medium modifications of the omega meson″,
Phys. Rev. Lett. 94 (2005) 192303, [arXiv:nucl-ex/0504010].

V. Metag

„Medium modifications of hadrons: Recent experimental results″,
Prog. Part. Nucl. Phys. 55 (2005) 35.

Collaborative Research Centre 16

B.4 In-medium properties of mesons

Publications