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  1. Article ; Online: Measurement of the charged-pion polarizability.

    Adolph, C / Akhunzyanov, R / Alexeev, M G / Alexeev, G D / Amoroso, A / Andrieux, V / Anosov, V / Austregesilo, A / Badełek, B / Balestra, F / Barth, J / Baum, G / Beck, R / Bedfer, Y / Berlin, A / Bernhard, J / Bicker, K / Bieling, J / Birsa, R /
    Bisplinghoff, J / Bodlak, M / Boer, M / Bordalo, P / Bradamante, F / Braun, C / Bressan, A / Büchele, M / Burtin, E / Capozza, L / Chiosso, M / Chung, S U / Cicuttin, A / Colantoni, M / Crespo, M L / Curiel, Q / Dalla Torre, S / Dasgupta, S S / Dasgupta, S / Denisov, O Yu / Dinkelbach, A M / Donskov, S V / Doshita, N / Duic, V / Dünnweber, W / Dziewiecki, M / Efremov, A / Elia, C / Eversheim, P D / Eyrich, W / Faessler, M / Ferrero, A / Filin, A / Finger, M / Fischer, H / Franco, C / du Fresne von Hohenesche, N / Friedrich, J M / Frolov, V / Gautheron, F / Gavrichtchouk, O P / Gerassimov, S / Geyer, R / Gnesi, I / Gobbo, B / Goertz, S / Gorzellik, M / Grabmüller, S / Grasso, A / Grube, B / Grussenmeyer, T / Guskov, A / Guthörl, T / Haas, F / von Harrach, D / Hahne, D / Hashimoto, R / Heinsius, F H / Herrmann, F / Hinterberger, F / Höppner, Ch / Horikawa, N / d'Hose, N / Huber, S / Ishimoto, S / Ivanov, A / Ivanshin, Yu / Iwata, T / Jahn, R / Jary, V / Jasinski, P / Jörg, P / Joosten, R / Kabuss, E / Ketzer, B / Khaustov, G V / Khokhlov, Yu A / Kisselev, Yu / Klein, F / Klimaszewski, K / Koivuniemi, J H / Kolosov, V N / Kondo, K / Königsmann, K / Konorov, I / Konstantinov, V F / Kotzinian, A M / Kouznetsov, O / Krämer, M / Kroumchtein, Z V / Kuchinski, N / Kuhn, R / Kunne, F / Kurek, K / Kurjata, R P / Lednev, A A / Lehmann, A / Levillain, M / Levorato, S / Lichtenstadt, J / Maggiora, A / Magnon, A / Makke, N / Mallot, G K / Marchand, C / Martin, A / Marzec, J / Matousek, J / Matsuda, H / Matsuda, T / Meshcheryakov, G / Meyer, W / Michigami, T / Mikhailov, Yu V / Miyachi, Y / Moinester, M A / Nagaytsev, A / Nagel, T / Nerling, F / Neubert, S / Neyret, D / Nikolaenko, V I / Novy, J / Nowak, W-D / Nunes, A S / Olshevsky, A G / Orlov, I / Ostrick, M / Panknin, R / Panzieri, D / Parsamyan, B / Paul, S / Peshekhonov, D / Platchkov, S / Pochodzalla, J / Polyakov, V A / Pretz, J / Quaresma, M / Quintans, C / Ramos, S / Regali, C / Reicherz, G / Rocco, E / Rossiyskaya, N S / Ryabchikov, D I / Rychter, A / Samoylenko, V D / Sandacz, A / Sarkar, S / Savin, I A / Sbrizzai, G / Schiavon, P / Schill, C / Schlüter, T / Schmidt, K / Schmieden, H / Schönning, K / Schopferer, S / Schott, M / Shevchenko, O Yu / Silva, L / Sinha, L / Sirtl, S / Slunecka, M / Sosio, S / Sozzi, F / Srnka, A / Steiger, L / Stolarski, M / Sulc, M / Sulej, R / Suzuki, H / Szabelski, A / Szameitat, T / Sznajder, P / Takekawa, S / ter Wolbeek, J / Tessaro, S / Tessarotto, F / Thibaud, F / Uhl, S / Uman, I / Virius, M / Wang, L / Weisrock, T / Wilfert, M / Windmolders, R / Wollny, H / Zaremba, K / Zavertyaev, M / Zemlyanichkina, E / Ziembicki, M / Zink, A

    Physical review letters

    2015  Volume 114, Issue 6, Page(s) 62002

    Abstract: The COMPASS collaboration at CERN has investigated pion Compton scattering, π(-)γ→π(-)γ, at center-of-mass energy below 3.5 pion masses. The process is embedded in the reaction π(-)Ni→π(-)γNi, which is initiated by 190 GeV pions impinging on a nickel ... ...

    Abstract The COMPASS collaboration at CERN has investigated pion Compton scattering, π(-)γ→π(-)γ, at center-of-mass energy below 3.5 pion masses. The process is embedded in the reaction π(-)Ni→π(-)γNi, which is initiated by 190 GeV pions impinging on a nickel target. The exchange of quasireal photons is selected by isolating the sharp Coulomb peak observed at smallest momentum transfers, Q(2)<0.0015  (GeV/c)(2). From a sample of 63,000 events, the pion electric polarizability is determined to be α(π)=(2.0±0.6(stat)±0.7(syst))×10(-4)  fm(3) under the assumption α(π)=-β(π), which relates the electric and magnetic dipole polarizabilities. It is the most precise measurement of this fundamental low-energy parameter of strong interaction that has been addressed since long by various methods with conflicting outcomes. While this result is in tension with previous dedicated measurements, it is found in agreement with the expectation from chiral perturbation theory. An additional measurement replacing pions by muons, for which the cross-section behavior is unambiguously known, was performed for an independent estimate of the systematic uncertainty.
    Language English
    Publishing date 2015-02-13
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.114.062002
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Observation of a J(PC)=1-+ exotic resonance in diffractive dissociation of 190   GeV/c π- into π- π- π+.

    Alekseev, M G / Alexakhin, V Yu / Alexandrov, Yu / Alexeev, G D / Amoroso, A / Austregesilo, A / Badełek, B / Balestra, F / Ball, J / Barth, J / Baum, G / Bedfer, Y / Bernhard, J / Bertini, R / Bettinelli, M / Birsa, R / Bisplinghoff, J / Bordalo, P / Bradamante, F /
    Bravar, A / Bressan, A / Brona, G / Burtin, E / Bussa, M P / Chapiro, A / Chiosso, M / Chung, S U / Cicuttin, A / Colantoni, M / Crespo, M L / Dalla Torre, S / Dafni, T / Das, S / Dasgupta, S S / Denisov, O Yu / Dhara, L / Diaz, V / Dinkelbach, A M / Donskov, S V / Doshita, N / Duic, V / Dünnweber, W / Efremov, A / El Alaoui, A / Eversheim, P D / Eyrich, W / Faessler, M / Ferrero, A / Finger, M / Fischer, H / Franco, C / Friedrich, J M / Garfagnini, R / Gautheron, F / Gavrichtchouk, O P / Gazda, R / Gerassimov, S / Geyer, R / Giorgi, M / Gobbo, B / Goertz, S / Grabmüller, S / Grajek, O A / Grasso, A / Grube, B / Gushterski, R / Guskov, A / Haas, F / von Harrach, D / Hasegawa, T / Heckmann, J / Heinsius, F H / Hermann, R / Herrmann, F / Hess, C / Hinterberger, F / Horikawa, N / Höppner, Ch / d'Hose, N / Ilgner, C / Ishimoto, S / Ivanov, O / Ivanshin, Yu / Iwata, T / Jahn, R / Jasinski, P / Jegou, G / Joosten, R / Kabuss, E / Kang, D / Ketzer, B / Khaustov, G V / Khokhlov, Yu A / Kisselev, Yu / Klein, F / Klimaszewski, K / Koblitz, S / Koivuniemi, J H / Kolosov, V N / Komissarov, E V / Kondo, K / Königsmann, K / Konopka, R / Konorov, I / Konstantinov, V F / Korzenev, A / Kotzinian, A M / Kouznetsov, O / Kowalik, K / Krämer, M / Kral, A / Kroumchtein, Z V / Kuhn, R / Kunne, F / Kurek, K / Lauser, L / Le Goff, J M / Lednev, A A / Lehmann, A / Levorato, S / Lichtenstadt, J / Liska, T / Maggiora, A / Maggiora, M / Magnon, A / Mallot, G K / Mann, A / Marchand, C / Marroncle, J / Martin, A / Marzec, J / Massmann, F / Matsuda, T / Maximov, A N / Meyer, W / Michigami, T / Mikhailov, Yu V / Moinester, M A / Mutter, A / Nagaytsev, A / Nagel, T / Nassalski, J / Negrini, T / Nerling, F / Neubert, S / Neyret, D / Nikolaenko, V I / Olshevsky, A G / Ostrick, M / Padee, A / Panknin, R / Panzieri, D / Parsamyan, B / Paul, S / Pawlukiewicz-Kaminska, B / Perevalova, E / Pesaro, G / Peshekhonov, D V / Piragino, G / Platchkov, S / Pochodzalla, J / Polak, J / Polyakov, V A / Pontecorvo, G / Pretz, J / Quintans, C / Rajotte, J-F / Ramos, S / Rapatsky, V / Reicherz, G / Reggiani, D / Richter, A / Robinet, F / Rocco, E / Rondio, E / Ryabchikov, D I / Samoylenko, V D / Sandacz, A / Santos, H / Sapozhnikov, M G / Sarkar, S / Savin, I A / Sbrizzai, G / Schiavon, P / Schill, C / Schlüter, T / Schmitt, L / Schopferer, S / Schröder, W / Shevchenko, O Yu / Siebert, H-W / Silva, L / Sinha, L / Sissakian, A N / Slunecka, M / Smirnov, G I / Sosio, S / Sozzi, F / Srnka, A / Stolarski, M / Sulc, M / Sulej, R / Takekawa, S / Tessaro, S / Tessarotto, F / Teufel, A / Tkatchev, L G / Uhl, S / Uman, I / Venugopal, G / Virius, M / Vlassov, N V / Vossen, A / Weitzel, Q / Windmolders, R / Wiślicki, W / Wollny, H / Zaremba, K / Zavertyaev, M / Zemlyanichkina, E / Ziembicki, M / Zhao, J / Zhuravlev, N / Zvyagin, A

    Physical review letters

    2010  Volume 104, Issue 24, Page(s) 241803

    Abstract: The COMPASS experiment at the CERN SPS has studied the diffractive dissociation of negative pions into the π- π- π+ final state using a 190  GeV/c pion beam hitting a lead target. A partial wave analysis has been performed on a sample of 420,000 events ... ...

    Abstract The COMPASS experiment at the CERN SPS has studied the diffractive dissociation of negative pions into the π- π- π+ final state using a 190  GeV/c pion beam hitting a lead target. A partial wave analysis has been performed on a sample of 420,000 events taken at values of the squared 4-momentum transfer t' between 0.1 and 1  GeV2/c2. The well-known resonances a1(1260), a2(1320), and π2(1670) are clearly observed. In addition, the data show a significant natural-parity exchange production of a resonance with spin-exotic quantum numbers J(PC)=1-+ at 1.66  GeV/c2 decaying to ρπ. The resonant nature of this wave is evident from the mass-dependent phase differences to the J(PC)=2-+ and 1++ waves. From a mass-dependent fit a resonance mass of (1660±10(-64)(+0))  MeV/c2 and a width of (269±21(-64)(+42))  MeV/c2 are deduced, with an intensity of (1.7±0.2)% of the total intensity.
    Language English
    Publishing date 2010-06-18
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.104.241803
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Bonn / Germany

    Z 4' 58/153: Show issues

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

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