• [1]

    Weinberg S.Trans.New York Acad.Sci.1977,38:185[2] Meiβner U G,teininger S.Phys.Lett.S,1998,419:403[arXiv:hep-ph/9709453] [3] Gotta D et al.AIP Conf.Proc.2008,1037:162[4] Gasser J,Ivanov M A,Lipartia E,Mojzis M,Rusetsky A.Eur.Phys.J.C,2002,26:13[arXiv:hep-ph/0206068] [5] Hoferichter M,Kubis B,Meiβner U G.Phys.Lett.B,2009,678:65[arXiv:0903.3890[hep-ph]][6] Fettes N Meiβner U G.Nucl.Phys.A,2001,693:693[arXiv:hep-ph/0101030] [7] Hoferichter M,Kubis b,Meiβner U G.arXiv:0909.4390[hep-ph] ,Nucl.Phys.A,2010,833:18[8] Stephenson e j et al.Phys.Rev.Lett.2003,91:142302[arXiv:nucl-ex/0305032] [9] Opper A K et al.Phys.Rev.Lett.2003,91:212302[arXiv:nucl-ex/0306027] [10] Kolck U van,Niskanen J A,Miller G A.Phys.Lett.B,2000,493:65[arXiv:nucl-th/0006042] [11] Filin A,Baru V,Epelbaum E,Haidenbauer J,Hanhart C,Kudryavtsev A,Meiβner U G.Phys.Lett.B,2009,681:423[arXiv:0907.4671[nucl-th]][12] Strauch Th,PhD thesis,Cologne,2009[13] Gasser J,Leutwyler H.Phys.Rept.1982,87:77[14] Beane S R,Orginos K,Savage M J.Nucl.Phys.B,2007,768:38[arXiv:hep-lat/0605014] [15] Bernard V,Kaiser N,Mciβner U G.Nucl.Phys.A,1997,615:483[arXiv:hep-ph/9611253] [16] Baru V,Epelbaum E,Haidenbauer J,Hanhart C,Kudryavtsev A E,Lensky V,Meiβner U G.Phys.Rev.C,2009,80:044003[arXiv:0907.3911[nucl-th]][17] Bijnens J,Ghorbani K.JHEP,2007,0711:030[arXiv:0709.0230[hep-ph]][18] Baur R,Kambor J,Wyler D.Nucl.Phys.B,1996,460:127[arXiv:hep-ph/9510396] [19] Ditsche C,Kubis B,Meiβner U G.Eur.Phys.J.C,2009,60:83[arXiv:0812.0344[hep-ph]][20] Gasser J,Leutwyler H.Nucl.Phys.B,1985,250:517[21] Deandrea A,Nehme A,Talavera P.Phys.Rev.D,2008,78:034032[arXiv:0803.2956[hep-ph]][22] Barley J R et al (NA48/2 collaboration).Phys.Lett.B,2006,633:173[arXiv:hep-ex/0511056] [23] Budini P,Fonda L.Phys.Rev.Lett.,1961,6:419[24] Meitβner U G,Müller G,Steininger S.Phys.Lett.B,1997,406:154[arXiv:hep-ph/9704377] [25] Cabibbo N,Isidori G.JHEP,2005,0503:021[arXiv:hepph/0502130] [26] Colangelo G,Gasser J,Kubis B,Rusetsky A.Phys.Lett.B,2006,638:187[arXiv:hep-ph/0604084] [27] Bissegger M,Fuhrer A,Gasser J,Kubis B,Rusetsky A.Nucl.Phys.B,2009,806:178[arXiv:0807.0515[hep-ph]][28] Gullstrom C O,Kupsc A,Rusetsky A.Phys.Rev.C,2009,79:028201[arXiv:0812.2371[hep-ph]][29] Kubis B,Schneider S P.Eur.Phys.J.C,2009,62:511[arXiv:0904.1320[hep-ph]][30] Schneider S P,Kubis B.arXiv:0910.0200[hep-ph] [31] Ioffe B L,Hifman M A.Phys.Lett.B,1980,95:99[32] Donoghue J F,Wyler D.Phys.Rev.D,1992,45:892[33] Mendez H et al (CLEO collaboration).Phys.Rev.D,2008,78:011102[arXiv:0804.4432[hep-ex]][34] Leutwyler H.Talk Given at the Colloquium in Memory of Jan Stern,Paris,Oct.2-3,2009[35] GUO F K,Hanhart C,Meiβner U G.Phys.Rev.Lett.,2009,103:082003[arXiv:0907.0521[hep-ph]][36] Borasoy B,Meiβner U G,Niβler R.Phys.Lett.B,2006,643:41[37] Aaltonen T et al (CDF collaboration).Phys.Rev.Lett.,2007,99:202001[arXiv:0706.3868[hep-ex]][38] GUO F K,Hanhart C,Meiβner U G.JHEP,2008,0809:136[arXiv:0809.2359[hep-ph]][39] Fritzsch H.arXiv:0811.0481[hep-ph]