Photoproduction of $\eta$ and $\eta\prime$ Mesons off Protons (2009)
CBELSA, The, Crede, TAPS Collaboration: Volker, McVeigh, A., Anisovich, A., Bacelar, J., Bantes, R., ...
Total and differential cross sections for $\eta$ and $\eta ^\prime$ photoproduction off the proton have been determined with the CBELSA/TAPS detector for photon energies between 0.85 and 2.55 GeV....
Beam-Helicity Asymmetries in Double Pion Photoproduction off the Proton (2009)
Krambrich, D., Zehr, F., Fix, A., Roca, L., Aguar, P., Ahrens, J., ...
Beam-helicity asymmetries have been measured at the MAMI accelerator in Mainz in the three isospin channels $\vec{\gamma}p\to \pi^{+}\pi^0n$, $\vec{\gamma}p\to \pi^{0}\pi^0p$ and $\vec{\gamma}p\to...
Technical Design Report for the PANDA Solenoid and Dipole Spectrometer Magnets (2009)
Keshelashvili, I., Krusche, B., Steinacher, M., Heng, Y., Liu, Z., ...
This document is the Technical Design Report covering the two large spectrometer magnets of the PANDA detector set-up. It shows the conceptual design of the magnets and their anticipated performance....
Physics Performance Report for PANDA: Strong Interaction Studies with Antiprotons (2009)
Erni, PANDA Collaboration: W., Keshelashvili, I., Krusche, B., Steinacher, M., Heng, Y., Liu, Z., ...
To study fundamental questions of hadron and nuclear physics in interactions of antiprotons with nucleons and nuclei, the universal PANDA detector will be built. Gluonic excitations, the physics of...
Photoproduction of pi^0 eta on protons and the Delta(1700)D_{33} resonance (2009)
Kashevarov, V. L., Fix, A., Aguar-Bartolome, P., Akasoy, L. K., Annand, J. R. M., Arends, H. J., ...
Total and differential cross sections for the reaction gamma p -> pi^o eta p have been measured with the Crystal Ball/TAPS detector using the tagged photon facility at the MAMI C accelerator in...
Unverzagt, M., Aguar-Bartolome, P., Ahrens, J., Annand, J. R. M., Arends, H. J., Beck, R., ...
A precise measurement of the Dalitz plot parameter, alpha, for the eta->3pi^0 decay is presented. The experiment was performed with the Crystal Ball and TAPS large acceptance photon detectors at the...
Prakhov, S., Nefkens, B. M. K., Aguar-Bartolome, P., Akasoy, L. K., Annand, J. R. M., Arends, H. J., ...
The dynamics of the $\eta\to 3\pi^0$ decay have been studied with the Crystal Ball multiphoton spectrometer and the TAPS calorimeter. Bremsstrahlung photons produced by the 1.5 GeV electron beam of...
Photoproduction of eta-mesons off nuclei for Eg < 2.2 GeV (2008)
Mertens, T., Jaegle, I., Muehlich, P., Bacelar, J. C. S., Bantes, B., Bartholomy, O., ...
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...
Elsner, D., Bantes, B., Bartholomy, O., Bayadilov, D. E., Beck, R., Beloglazov, Y. A., ...
At the electron accelerator ELSA a linearly polarised tagged photon beam is produced by coherent bremsstrahlung off a diamond crystal. Orientation and energy range of the linear polarisation can be...
Photoproduction of $\eta$ mesons off neutrons from a deuteron target (2008)
Anisovich, A. V., Jaegle, I., Klempt, E., Krusche, B., Nikonov, V. A., Sarantsev, A. V., ...
A formalism is developed for the partial wave analysis of data on meson photoproduction off deuterons and applied to photoproduction of $\eta$ and $\pi^0$ mesons. Different interpretations of a...
Quasi-free photoproduction of eta-mesons of the neutron (2008)
Jaegle, I., Mertens, T., Anisovich, A. V., Bacelar, J. C. S., Bantes, B., Bartholomy, O., ...
Quasi-free photoproduction of eta-mesons off nucleons bound in the deuteron has been measured with the CBELSA/TAPS detector for incident photon energies up to 2.5 GeV at the Bonn ELSA accelerator....
Modification of the $\omega$-Meson Lifetime in Nuclear Matter (2008)
Kotulla, M., Trnka, D., Mühlich, P., Anton, G., Bacelar, J. C. S., Bartholomy, O., ...
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...
Review of particle physics (2008)
Particle Data Group, Amsler, C, Doser, M, Antonelli, M, Asner, DM, Babu, KS, ...
Incoherent pion photoproduction on $^{12}$C (2007)
Tarbert, C. M., Watts, D. P., Aguar, P., Ahrens, J., Annand, J. R. M., Arends, H. J., ...
We present the first detailed measurement of incoherent photoproduction of neutral pions to a discrete state of a residual nucleus. The $^{12}$C$(\gamma,\pi^{0})^{12}$C$^{*}_{4.4MeV}$ reaction has...
N* and Delta* decays into N pi0 pi0 (2007)
Thoma, U., Fuchs, M., Anisovich, A. V., Anton, G., Bantes, R., Bartholomy, O., ...
Decays of baryon resonances in the second and the third resonance region into N pi0 pi0 are studied by photoproduction of two neutral pions off protons. Partial decay widths of N* and Delta*...
Double pion photoproduction off 40Ca (2007)
Bloch, F., Ahrens, J., Annand, J. R. M., Beck, R., Fog, L. S., Hornidge, D., ...
The photoproduction of pi0pi0 and pi0pi+/- pairs off 40Ca has been investigated with the TAPS detector using the Glasgow photon tagging spectrometer at the Mainz MAMI accelerator. Data have been...
In-Medium Properties of Hadrons (2006)
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...
Vector and Tensor Analyzing Powers of the H(d,gamma)He-3 capture reaction (2005)
Klechneva, T., Carasco, C., Goussev, I., Hauger, M., Jourdan, J., Krusche, B., ...
Precise measurements of the deuteron vector analyzing power Ayd and the tensor analyzing power Ayy of the H(d,gamma)He-3 capture reaction have been performed at deuteron energies of 29MeV and 45MeV....
Nuclear mass form factors from coherent photoproduction of $\pi^0$ mesons (2005)
Data for coherent photoproduction of $\pi^0$ mesons from nuclei ($^{12}$C, $^{40}$Ca, $^{93}$Nb, $^{nat}$Pb), recently measured with the TAPS detector at the Mainz MAMI accelerator, have been...
Measurement of the asymmetries in 3He(e,e'p)d and 3He(e,e'p)np (2005)
Achenbach, P., Baumann, D., Boehm, R., Boillat, B., Bosnar, D., Carasco, C., ...
The electron-target-asymmetries A_parallel and A_perpendicular with target spin parallel and perpendicular to the momentum transfer q were measured for both the two-- and three-body breakup of 3He in...
Observation of In-Medium Modifications of the Omega Meson (2005)
Trnka, D., Anton, G., Bacelar, J. C. S., Bartholomy, O., Bayadilov, D., Beloglazov, Y. A., ...
This version is available at the following Publisher URL: http://prl.aps.org
Bartholomy, O., Crede, V., Anisovich, A., Anton, G., Bantes, R., Beloglazov, Y. A., ...
This version is available at the following Publisher URL: http://prl.aps.org
Photoproduction of eta mesons off protons for 0.75 GeV kleiner E(gamma) kleiner 3 GeV (2005)
Crede, V., Bartholomy, O., Anisovich, A., Anton, G., Bantes, R., Beloglazov, Y. A., ...
This version is available at the following Publisher URL: http://prl.aps.org
In-medium properties of nucleon resonances (2004)
Recent experimental results for the in-medium properties of nucleon resonances are discussed. The experiments were done with the TAPS detector at the tagged photon beam of the MAMI accelerator in...
Photoproduction of mesons from nuclei - In-medium properties of hadrons (2004)
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...
Surface and volume effects in the photoabsorption of nuclei (2004)
Krusche, B., Lehr, J., Bloch, F., Kotulla, M., Metag, V., Mosel, U., ...
Recent experimental results for meson photoproduction from nuclei obtained with TAPS at MAMI are analyzed in view of the suppression of the second nucleon resonance region in total photoabsorption....
Measurement of the pi^+ meson polarizabilities via the gamma p->gamma pi^+ n reaction (2004)
Ahrens, J., Alexeev, V. M., Annand, J. R. M., Arends, H. J., Beck, R., Caselotti, G., ...
An experiment on the radiative pi^+ meson photoproduction from the proton (gamma p->gamma pi^+ n) was carried out at the Mainz Microtron MAMI in the kinematic region 537 MeV
Photoproduction of pi0-mesons from nuclei (2004)
Krusche, B., Lehr, J., Ahrens, J., Annand, J. R. M., Beck, R., Bloch, F., ...
Photoproduction of neutral pions from nuclei (carbon, calcium, niobium, lead) has been studied for incident photon energies from 200 MeV to 800 MeV with the TAPS detector using the Glasgow photon...
Double pi0 photoproduction off the proton at threshold (2004)
Kotulla, M., Ahrens, J., Annand, J.R.M., Beck, R., Hornidge, D., Janssen, S., ...
The reaction gammap → pi(0)pi(0)p has been measured using the TAPS BaF2 calorimeter at the tagged photon facility of the Mainz Microtron accelerator. Chiral perturbation theory (ChPT) predicts that...
Photoproduction of eta-mesic 3He (2003)
Pfeiffer, M., Ahrens, J., Annand, J. R. M., Beck, R., Caselotti, G., Cherepnya, S., ...
The photoproduction of eta-mesic 3He has been investigated using the TAPS calorimeter at the Mainz Microtron accelerator facility MAMI. The total inclusive cross section for the reaction...
Double $\pi^0$ Photoproduction off the Proton at Threshold (2003)
Kotulla, M., Ahrens, J., Annand, J. R. M., Beck, R., Hornidge, D., Janssen, S., ...
The reaction $\gamma p \to \pi^0 \pi^0 p$ has been measured using the TAPS BaF$_2$ calorimeter at the tagged photon facility of the Mainz Microtron accelerator. Chiral perturbation theory (ChPT)...
Study of Non-Strange Baryon Resonances with Meson Photoproduction (2003)
Photoproduction of mesons is an excellent tool for the study of nucleon resonances. Complementary to pion induced reactions, photoproduction on the free proton contributes to the determination of the...
Photoproduction of eta-mesons from light nuclei (2003)
In a series of experiments coherent and quasifree eta-photoproduction from light nuclei (4He, 3He, 2H) was investigated with the TAPS-detector at the Mainz MAMI-accelerator. The experiments were...
Threshold enhancement in eta photoproduction from 2H and 4He (2003)
Hejny, V., Weiss, J., Achenbach, P., Ahrens, J., Annand, J. R. M., Beck, R., ...
The photoproduction of eta-mesons from 2H and 4He has been studied for energies close to the production thresholds. The experiments were carried out with the tagged photon beam of the Mainz MAMI...
Coherent pi0-photoproduction from atomic nuclei (2003)
Krusche, B., Ahrens, J., Beck, R., Kamalov, S., Metag, V., Owens, R. O., ...
Differential and total cross sections for coherent pi0-photoproduction from 12C, 40Ca, 93Nb and Pb targets have been measured throughout the region of the Delta(1232)-resonance. The experiments were...
Photoexcitation of Baryon Resonances - News from the D13(1520) (2003)
The so-called second resonance region of the nucleon comprises the states P11(1440), D13(1520) and S11(1535). During the last few years photoproduction experiments have largely contributed to a...
Meson photoproduction in the first and second resonance region (2003)
The study of baryon resonances via meson photoproduction reactions on the free proton and on nucleons in the nuclear medium is discussed. Special emphasis is laid on the production of neutral mesons...
Exclusive measurement of coherent eta photoproduction from the deuteron (2003)
Weiss, J., Achenbach, P., Ahrens, J., Annand, J. R. M., Beck, R., Hejny, V., ...
Coherent photoproduction of eta mesons from the deuteron has been measured from threshold up to incident photon energies of 750 MeV using the photon spectrometer TAPS at the tagged photon facility at...
In-medium properties of the D13(1520) nucleon resonance (2003)
Krusche, B., Ahrens, J., Beck, R., MacGregor, I. J. D., McGeorge, J. C., Metag, V., ...
The in-medium properties of the D13(1520) nucleon resonance were studied via photoproduction of pi0-mesons from nuclei (C, Ca, Nb, Pb) with the TAPS-detector at the Mainz MAMI accelerator. The...
The neutron charge form factor and target analyzing powers from pol.3He(pol e,e'n)-scattering (2003)
Bermuth, J., Merle, P., Carasco, C. C., Baumann, D., Boehm, R., Bosnar, D., ...
The charge form factor of the neutron has been determined from asymmetries measured in quasi--elastic pol.3He(pol e,e'n) at a momentum transfer of 0.67(GeV/c)^2. In addition, the target analyzing...
Exclusive measurement of quasi-free eta -photoproduction from deuterium (2003)
Weiss, J., Achenbach, P., Beck, R., Hejny, V., Kleber, V., Kotulla, M., ...
Quasi-free photoproduction of eta -mesons from the deuteron has been measured at the tagged photon facility of the Mainz microtron MAMI with the photon spectrometer TAPS for incident photon energies...
Kotulla, M., Ahrens, J., Annand, J. R. M., Beck, R., Caselotti, G., Fog, L. S., ...
The reaction $\gamma p \to \pi^\circ \gamma^\prime p$ has been measured with the TAPS calorimeter at the Mainz Microtron accelerator facility MAMI for energies between $\sqrt{s}$ = 1221--1331 MeV....
Exclusive measurements of quasi-free eta-photoproduction from deuterium (2002)
Weiss, J., Achenbach, P., Beck, R., Hejny, V., Kleber, V., Kotulla, M., ...
Quasi-free photoproduction of eta-mesons from the deuteron has been measured at the tagged photon facility of the Mainz microtron MAMI with the photon spectrometer TAPS for incident photon energies...
In-medium modifications of the $\pi\pi$ interaction in photon-induced reactions (2002)
Messchendorp, J. G., Janssen, S., Kotulla, M., Ahrens, J., Annand, J. R. H., Beck, R., ...
Differential cross sections of the reactions $(\gamma,\pi^\circ\pi^\circ)$ and $(\gamma,\pi^\circ\pi^++\pi^\circ\pi^-)$ have been measured for several nuclei ($^1$H,$^{12}$C, and $^{\rm nat}$Pb) at...
Threshold enhancement in eta photoproduction from H-2 and He-4 (2002)
Hejny, V., Weiss, J., Achenbach, P., Ahrens, J., Annand, J.R.M., Beck, R., ...
The photoproduction of eta-mesons from H-2 and He-4 has been studied for energies close to the production thresholds. The experiments were carried out with the tagged photon beam of the Mainz MAMI...
Coherent pi0-photoproduction from atomic nuclei (2002)
Krusche, B., Ahrens, J., Beck, R., Kamalov, S., Metag, V., Owens, R.O., ...
Differential and total cross sections for coherent pi(0)- photoproduction from C-12, Ca-40, Nb-93 and Pb targets have been measured throughout the region of the Delta(1232)- resonance. The...
In-medium modifications of the ππ interaction in photon-induced reactions (2002)
Messchendorp, J.G., Janssen, S., Kotulla, M., Ahrens, J., Annand, J.R.H., Beck, R., ...
Differential cross sections of the reactions (gamma,pi(0)pi(0)) and (gamma,pi(0)pi(+/-)) have been measured for several nuclei (H-1,C-12, and Pb-nat) at an incident-photon energy of E-gamma=400-460...
Test of low-energy theorems for p(\vec{gamma},\pi^{0})p in the threshold region (2001)
Schmidt, A., Achenbach, P., Ahrens, J., Arends, H. J., Beck, R., Bernstein, A. M., ...
The photon asymmetry in the reaction p(\vec{\gamma},\pi^{0})p close to threshold has been measured for the first time with the photon spectrometer TAPS using linearly polarized photons from the...
In-medium properties of the D13(1520) nucleon resonance (2001)
Krusche, B., Ahrens, J., Beck, R., MacGregor, I. J. D., MacGeorge, J. C., Metag, V., ...
This version is available at the following Publisher URL: http://prl.aps.org
Direct observation of a rho decay of the D13(1520) baryon resonance (2001)
Langgärtner, L. L., Ahrens, J., Beck, R., Hejny, V., Kotulla, M., Krusche, B., ...
This version is available at the following Publisher URL: http://prl.aps.org
Test of low energy theorems for H(gamma, pi0)1 H in the threshold region (2001)
Schmidt, A., Achenbach, P., Ahrens, J., Arends, H. J., Beck, R., Bernstein, A. M., ...
This version is available at the following Publisher URL: http://prl.aps.org
In-medium properties of the D13(1520)nucleon resonance (2001)
Krusche, B., Ahrens, J., Beck, R., MacGregor, I.J.D., McGeorge, J.C., Metag, V., ...
The in-medium properties of the D13(1520) nucleon resonance were studied via photoproduction of pi (0) mesons from nuclei (C, Ca, Nb, Pb) with the TAPS detector at the Mainz Microton accelerator. The...
Direct observation of a rho decay of the D-13(1520) baryon resonance (2001)
Langgartner, W., Ahrens, J., Beck, R., Hejny, V., Kotulla, M., Krusche, B., ...
The reaction gammap → pi (+)pi (o)n has been measured at MAMI for photon energies up to 820 MeV. Invariant mass spectra of the particles in the final state (pi (+)n), (pi (o)n), (pi (+)pi (o)) have...
Test of low-energy theorems for H-1(gamma over-right- arrow,pi(0))H-1 in the threshold region (2001)
Schmidt, A., Achenbach, P., Ahrens, J., Arends, H.J., Beck, R., Bernstein, A.M., ...
The photon asymmetry in the reaction H-1([([gamma])over right arrow], pi (0))H-1 close to threshold has been measured for the first time with the photon spectrometer TAPS using linearly polarized...
Exclusive measurement of coherent eta -photoproduction from the deuteron (2001)
Weiss, J., Achenbach, P., Ahrens, J., Annand, J.R.M., Beck, R., Hejny, V., ...
Coherent photoproduction of eta -mesons from the deuteron has been measured from threshold up to E/sub gamma / approximately=750 MeV using the photon spectrometer TAPS at the tagged photon facility...
In-Medium Properties of the D13(1520) Nucleon Resonance (2001)
Ahrens, J., Beck, R., Krusche, B., MacGregor, I. J. D., McGeorge, J. C.
Search for narrow dibaryon resonances in neutral pion photoproduction from the deuteron (2000)
Siodlaczek, U., Achenbach, P., Ahrens, J., Arends, H.J., Beck, R., Bilger, R., ...
The reaction gamma d to pi /sup 0/X has been measured with TAPS at MAMI in the energy range E/sub gamma /=140-300 MeV. Using the Glasgow tagging spectrometer a photon energy resolution of 0.8 MeV was...
Photoproduction of neutral pion pairs from the proton (2000)
Wolf, M., Ahrens, J., Beck, R., Hejny, V., Kellie, J.D., Kotulla, M., ...
Double neutral pion photoproduction from the proton has been measured at MAMI for photon energies between threshold and 820 MeV. The reaction was identified by an invariant mass and missing mass...
Double-pi0photoproduction from the deuteron (2000)
Kleber, V., Achenbach, P., Ahrens, J., Beck, R., Hejny, V., Kellie, J.D., ...
The photoproduction of two neutral pions from the deuteron has been studied for incident photon energies from 200 MeV to 820 MeV with the TAPS spectrometer at MAMI (Mainz Microtron). The total...
Coherent \pi^\circ photoproduction from ^4He (1999)
Rambo, F., Achenbach, P., Ahrens, J., Beck, R., Hall, S. J., ...
Differential cross sections and beam asymmetries for coherent \pi^\circ photoproduction from ^4He in the \Delta energy-range have been measured with high statistical and systematic precisions using...
Secondary pion beams at GSI (1999)
Simon, R S, Alvarez, M, Ardid, M, Avdeichikov, V, Ballester, F, Bokemeyer, H, ...
Observation of a unitary cusp in the threshold {\gamma}p -> \pi^{0}p reaction (1996)
Bernstein, A. M., Shuster, E., Beck, R., Fuchs, M., Krusche, B., Merkel, H., ...
A rigorous multipole analysis of the recent {\gamma}p -> \pi^{0}p cross section measurement is presented. The data were taken using the photon spectrometer TAPS at the tagged photon beam of the Mainz...
Klay, N., Kaeppeler, F., Beer, H., Schatz, G., Boerner, H., Hoyler, F., ...
Physical Review C, 44(1991) S.2801-38
Evidence for the existence of two-phonon collective excitations in deformed nuclei (1991)
Boerner, H.G., Jolie, J., Robinson, S.J., Krusche, B., Piepenbring, R., Casten, R.F., ...
Evidence for the existence of two-phonon collective excitations in deformed nuclei (1991)
Boerner, H.G., Jolie, J., Robinson, S.J., Krusche, B., Piepenbring, R., Casten, R.F., ...
The level scheme of `1`7`6 Lu and its astrophysical implications. (1987)
Klay, N., Beer, H., Boerner, H., Kaeppeler, F., Schatz, G., Krusche, B.
Spring Meeting of Nuclear Physics Sections of the Deutsche Physikalische Gesellschaft, Nederlandse Natuurkundige Vereniging, Belgische Natuurkundige Vereniging, Societe Belge de Physique, Dansk...
Nuclear structure studies of $^{41}$K using the $^{40}$K (N $\gamma$) reaction (1982)
Krusche, B., Lieb, K.P., Ziegeler, L., Daniel, H., Egidy, T. Von, Rascher, R., ...
Gamma ray energies and $^{36}$Ci level scheme from the reaction $^{35}$Ci(n $\gamma$) (1982)
Krusche, B., Lieb, K.P., Daniel, H., Egidy, T. Von, Barreau, G., Boerner, H.G., ...
Nuclear structure studies of $^{41}$K using the $^{40}$K (N $\gamma$) reaction (1982)
Krusche, B., Lieb, K.P., Ziegeler, L., Daniel, H., Egidy, T. Von, Rascher, R., ...
Gamma ray energies and $^{36}$Ci level scheme from the reaction $^{35}$Ci(n $\gamma$) (1982)
Krusche, B., Lieb, K.P., Daniel, H., Egidy, T. Von, Barreau, G., Boerner, H.G., ...
The reaction $^{35}$Cl(n $\gamma$) as an energy calibration standard (1981)
Boerner, H.G., Barreau, G., Brissot, R., Hofmeyer, C., Daniel, H., Egidy, T. Von, ...
The reaction $^{35}$Cl(n $\gamma$) as an energy calibration standard (1981)
Boerner, H.G., Barreau, G., Brissot, R., Hofmeyer, C., Daniel, H., Egidy, T. Von, ...
Threshold enhancement in eta photoproduction from H-2 and He-4
Hejny, V., Weiss, J., Achenbach, P., Ahrens, J., Annand, J.R.M., Beck, R., ...
The photoproduction of eta-mesons from H-2 and He-4 has been studied for energies close to the production thresholds. The experiments were carried out with the tagged photon beam of the Mainz MAMI...
Double-pi0photoproduction from the deuteron
Kleber, V., Achenbach, P., Ahrens, J., Beck, R., Hejny, V., Kellie, J.D., ...
The photoproduction of two neutral pions from the deuteron has been studied for incident photon energies from 200 MeV to 820 MeV with the TAPS spectrometer at MAMI (Mainz Microtron). The total...
Double pi0 photoproduction off the proton at threshold
Kotulla, M., Ahrens, J., Annand, J.R.M., Beck, R., Hornidge, D., Janssen, S., ...
The reaction gammap → pi(0)pi(0)p has been measured using the TAPS BaF2 calorimeter at the tagged photon facility of the Mainz Microtron accelerator. Chiral perturbation theory (ChPT) predicts that...
Coherent pi0-photoproduction from atomic nuclei
Krusche, B., Ahrens, J., Beck, R., Kamalov, S., Metag, V., Owens, R.O., ...
Differential and total cross sections for coherent pi(0)- photoproduction from C-12, Ca-40, Nb-93 and Pb targets have been measured throughout the region of the Delta(1232)- resonance. The...
In-medium properties of the D13(1520)nucleon resonance
Krusche, B., Ahrens, J., Beck, R., MacGregor, I.J.D., McGeorge, J.C., Metag, V., ...
The in-medium properties of the D13(1520) nucleon resonance were studied via photoproduction of pi (0) mesons from nuclei (C, Ca, Nb, Pb) with the TAPS detector at the Mainz Microton accelerator. The...
Direct observation of a rho decay of the D-13(1520) baryon resonance
Langgartner, W., Ahrens, J., Beck, R., Hejny, V., Kotulla, M., Krusche, B., ...
The reaction gammap → pi (+)pi (o)n has been measured at MAMI for photon energies up to 820 MeV. Invariant mass spectra of the particles in the final state (pi (+)n), (pi (o)n), (pi (+)pi (o)) have...
In-medium modifications of the ππ interaction in photon-induced reactions
Messchendorp, J.G., Janssen, S., Kotulla, M., Ahrens, J., Annand, J.R.H., Beck, R., ...
Differential cross sections of the reactions (gamma,pi(0)pi(0)) and (gamma,pi(0)pi(+/-)) have been measured for several nuclei (H-1,C-12, and Pb-nat) at an incident-photon energy of E-gamma=400-460...
Test of low-energy theorems for H-1(gamma over-right- arrow,pi(0))H-1 in the threshold region
Schmidt, A., Achenbach, P., Ahrens, J., Arends, H.J., Beck, R., Bernstein, A.M., ...
The photon asymmetry in the reaction H-1([([gamma])over right arrow], pi (0))H-1 close to threshold has been measured for the first time with the photon spectrometer TAPS using linearly polarized...
Search for narrow dibaryon resonances in neutral pion photoproduction from the deuteron
Siodlaczek, U., Achenbach, P., Ahrens, J., Arends, H.J., Beck, R., Bilger, R., ...
The reaction gamma d to pi /sup 0/X has been measured with TAPS at MAMI in the energy range E/sub gamma /=140-300 MeV. Using the Glasgow tagging spectrometer a photon energy resolution of 0.8 MeV was...
Exclusive measurement of quasi-free eta -photoproduction from deuterium
Weiss, J., Achenbach, P., Beck, R., Hejny, V., Kleber, V., Kotulla, M., ...
Quasi-free photoproduction of eta -mesons from the deuteron has been measured at the tagged photon facility of the Mainz microtron MAMI with the photon spectrometer TAPS for incident photon energies...
Exclusive measurement of coherent eta -photoproduction from the deuteron
Weiss, J., Achenbach, P., Ahrens, J., Annand, J.R.M., Beck, R., Hejny, V., ...
Coherent photoproduction of eta -mesons from the deuteron has been measured from threshold up to E/sub gamma / approximately=750 MeV using the photon spectrometer TAPS at the tagged photon facility...
Photoproduction of neutral pion pairs from the proton
Wolf, M., Ahrens, J., Beck, R., Hejny, V., Kellie, J.D., Kotulla, M., ...
Double neutral pion photoproduction from the proton has been measured at MAMI for photon energies between threshold and 820 MeV. The reaction was identified by an invariant mass and missing mass...
Threshold enhancement in eta photoproduction from H-2 and He-4
Hejny, V., Weiss, J., Achenbach, P., Ahrens, J., Annand, J.R.M., Beck, R., ...
The photoproduction of eta-mesons from H-2 and He-4 has been studied for energies close to the production thresholds. The experiments were carried out with the tagged photon beam of the Mainz MAMI...
Double-pi0photoproduction from the deuteron
Kleber, V., Achenbach, P., Ahrens, J., Beck, R., Hejny, V., Kellie, J.D., ...
The photoproduction of two neutral pions from the deuteron has been studied for incident photon energies from 200 MeV to 820 MeV with the TAPS spectrometer at MAMI (Mainz Microtron). The total...
Double pi0 photoproduction off the proton at threshold
Kotulla, M., Ahrens, J., Annand, J.R.M., Beck, R., Hornidge, D., Janssen, S., ...
The reaction gammap → pi(0)pi(0)p has been measured using the TAPS BaF2 calorimeter at the tagged photon facility of the Mainz Microtron accelerator. Chiral perturbation theory (ChPT) predicts that...
Coherent pi0-photoproduction from atomic nuclei
Krusche, B., Ahrens, J., Beck, R., Kamalov, S., Metag, V., Owens, R.O., ...
Differential and total cross sections for coherent pi(0)- photoproduction from C-12, Ca-40, Nb-93 and Pb targets have been measured throughout the region of the Delta(1232)- resonance. The...
In-medium properties of the D13(1520)nucleon resonance
Krusche, B., Ahrens, J., Beck, R., MacGregor, I.J.D., McGeorge, J.C., Metag, V., ...
The in-medium properties of the D13(1520) nucleon resonance were studied via photoproduction of pi (0) mesons from nuclei (C, Ca, Nb, Pb) with the TAPS detector at the Mainz Microton accelerator. The...
Direct observation of a rho decay of the D-13(1520) baryon resonance
Langgartner, W., Ahrens, J., Beck, R., Hejny, V., Kotulla, M., Krusche, B., ...
The reaction gammap → pi (+)pi (o)n has been measured at MAMI for photon energies up to 820 MeV. Invariant mass spectra of the particles in the final state (pi (+)n), (pi (o)n), (pi (+)pi (o)) have...
In-medium modifications of the ππ interaction in photon-induced reactions
Messchendorp, J.G., Janssen, S., Kotulla, M., Ahrens, J., Annand, J.R.H., Beck, R., ...
Differential cross sections of the reactions (gamma,pi(0)pi(0)) and (gamma,pi(0)pi(+/-)) have been measured for several nuclei (H-1,C-12, and Pb-nat) at an incident-photon energy of E-gamma=400-460...
Test of low-energy theorems for H-1(gamma over-right- arrow,pi(0))H-1 in the threshold region
Schmidt, A., Achenbach, P., Ahrens, J., Arends, H.J., Beck, R., Bernstein, A.M., ...
The photon asymmetry in the reaction H-1([([gamma])over right arrow], pi (0))H-1 close to threshold has been measured for the first time with the photon spectrometer TAPS using linearly polarized...
Search for narrow dibaryon resonances in neutral pion photoproduction from the deuteron
Siodlaczek, U., Achenbach, P., Ahrens, J., Arends, H.J., Beck, R., Bilger, R., ...
The reaction gamma d to pi /sup 0/X has been measured with TAPS at MAMI in the energy range E/sub gamma /=140-300 MeV. Using the Glasgow tagging spectrometer a photon energy resolution of 0.8 MeV was...
Exclusive measurement of quasi-free eta -photoproduction from deuterium
Weiss, J., Achenbach, P., Beck, R., Hejny, V., Kleber, V., Kotulla, M., ...
Quasi-free photoproduction of eta -mesons from the deuteron has been measured at the tagged photon facility of the Mainz microtron MAMI with the photon spectrometer TAPS for incident photon energies...
Exclusive measurement of coherent eta -photoproduction from the deuteron
Weiss, J., Achenbach, P., Ahrens, J., Annand, J.R.M., Beck, R., Hejny, V., ...
Coherent photoproduction of eta -mesons from the deuteron has been measured from threshold up to E/sub gamma / approximately=750 MeV using the photon spectrometer TAPS at the tagged photon facility...
Photoproduction of neutral pion pairs from the proton
Wolf, M., Ahrens, J., Beck, R., Hejny, V., Kellie, J.D., Kotulla, M., ...
Double neutral pion photoproduction from the proton has been measured at MAMI for photon energies between threshold and 820 MeV. The reaction was identified by an invariant mass and missing mass...