K$^{-}$ over K$^{+}$ multiplicity ratio for kaons produced in DIS with a large fraction of the virtual-photon energy
- Akhunzyanov, R.
- Alexeev, M.G.
- Alexeev, G.D.
- Amoroso, A.
- Andrieux, V.
- Anfimov, N.V.
- Anosov, V.
- Antoshkin, A.
- Augsten, K.
- Augustyniak, W.
- Austregesilo, A.
- Azevedo, C.D.R.
- Badełek, B.
- Balestra, F.
- Ball, M.
- Barth, J.
- Beck, R.
- Bedfer, Y.
- Bernhard, J.
- Bicker, K.
- Bielert, E.R.
- Birsa, R.
- Bodlak, M.
- Bordalo, P.
- Bradamante, F.
- Bressan, A.
- Büchele, M.
- Burtsev, V.E.
- Capozza, L.
- Chang, W.-C.
- Chatterjee, C.
- Chiosso, M.
- Chumakov, A.G.
- Chung, S.-U.
- Cicuttin, A.
- Crespo, M.L.
- Curiel, Q.
- Dalla Torre, S.
- Dasgupta, S.S.
- Dasgupta, S.
- Denisov, O.Yu.
- Dhara, L.
- Donskov, S.V.
- Doshita, N.
- Dreisbach, Ch.
- Dünnweber, W.
- Dusaev, R.R.
- Dziewiecki, M.
- Efremov, A.
- Eversheim, P.D.
- Faessler, M.
- Ferrero, A.
- Finger, M.
- Finger, Michael, Jr.
- Fischer, H.
- Franco, C.
- du Fresne von Hohenesche, N.
- Friedrich, J.M.
- Frolov, V.
- Gautheron, F.
- Gavrichtchouk, O.P.
- Gerassimov, S.
- Giarra, J.
- Gnesi, I.
- Gorzellik, M.
- Grasso, A.
- Gridin, A.
- Grosse Perdekamp, M.
- Grube, B.
- Guskov, A.
- Hahne, D.
- Hamar, G.
- von Harrach, D.
- Heitz, R.
- Herrmann, F.
- Horikawa, N.
- d'Hose, N.
- Hsieh, C.-Y.
- Huber, S.
- Ishimoto, S.
- Ivanov, A.
- Ivanshin, Yu.
- Iwata, T.
- Jary, V.
- Joosten, R.
- Jörg, P.
- Kabuß, E.
- Kerbizi, A.
- Ketzer, B.
- Khaustov, G.V.
- Khokhlov, Yu.A.
- Kisselev, Yu.
- Klein, F.
- Koivuniemi, J.H.
- Kolosov, V.N.
- Kondo, K.
- Konorov, I.
- Konstantinov, V.F.
- Kotzinian, A.M.
- Kouznetsov, O.M.
- Kral, Z.
- Krämer, M.
- Krinner, F.
- Kroumchtein, Z.V.
- Kulinich, Y.
- Kunne, F.
- Kurek, K.
- Kurjata, R.P.
- Kuznetsov, I.I.
- Kveton, A.
- Lednev, A.A.
- Levchenko, E.A.
- Levorato, S.
- Lian, Y.-S.
- Lichtenstadt, J.
- Longo, R.
- Lyubovitskij, V.E.
- Maggiora, A.
- Magnon, A.
- Makins, N.
- Makke, N.
- Mallot, G.K.
- Mamon, S.A.
- Marchand, C.
- Marianski, B.
- Martin, A.
- Marzec, J.
- Matoušek, J.
- Matsuda, H.
- Matsuda, T.
- Meshcheryakov, G.V.
- Meyer, M.
- Meyer, W.
- Mikhailov, Yu.V.
- Mikhasenko, M.
- Mitrofanov, E.
- Mitrofanov, N.
- Miyachi, Y.
- Moretti, A.
- Nagaytsev, A.
- Nerling, F.
- Neyret, D.
- Nový, J.
- Nowak, W.-D.
- Nukazuka, G.
- Nunes, A.S.
- Olshevsky, A.G.
- Orlov, I.
- Ostrick, M.
- Panzieri, D.
- Parsamyan, B.
- Paul, S.
- Peng, J.-C.
- Pereira, F.
- Pesaro, G.
- Pešek, M.
- Pešková, M.
- Peshekhonov, D.V.
- Pierre, N.
- Platchkov, S.
- Pochodzalla, J.
- Polyakov, V.A.
- Pretz, J.
- Quaresma, M.
- Quintans, C.
- Ramos, S.
- Regali, C.
- Reicherz, G.
- Riedl, C.
- Ryabchikov, D.I.
- Rybnikov, A.
- Rychter, A.
- Salac, R.
- Samoylenko, V.D.
- Sandacz, A.
- Sarkar, S.
- Savin, I.A.
- Sawada, T.
- Sbrizzai, G.
- Schiavon, P.
- Schmieden, H.
- Seder, E.
- Selyunin, A.
- Silva, L.
- Sinha, L.
- Sirtl, S.
- Slunecka, M.
- Sozzi, F.
- Smolik, J.
- Srnka, A.
- Steffen, D.
- Stolarski, M.
- Subrt, O.
- Sulc, M.
- Suzuki, H.
- Szabelski, A.
- Szameitat, T.
- Sznajder, P.
- Tasevsky, M.
- Tessaro, S.
- Tessarotto, F.
- Thiel, A.
- Tomsa, J.
- Tosello, F.
- Tskhay, V.
- Uhl, S.
- Vasilishin, B.I.
- Vauth, A.
- Veit, B.M.
- Veloso, J.
- Vidon, A.
- Virius, M.
- Wallner, S.
- Wilfert, M.
- Windmolders, R.
- Zaremba, K.
- Zavada, P.
- Zavertyaev, M.
- Zemlyanichkina, E.
- Zhuravlev, N.
- Ziembicki, M.
DOIAbstract
The K− over K+ multiplicity ratio is measured in deep-inelastic scattering, for the first time for kaons carrying a large fraction z of the virtual-photon energy. The data were obtained by the COMPASS collaboration using a 160 GeV muon beam and an isoscalar 6 LiD target. The regime of deep-inelastic scattering is ensured by requiring Q2>1(GeV/c)2 for the photon virtuality and W>5GeV/c2 for the invariant mass of the produced hadronic system. Kaons are identified in the momentum range from 12 GeV/ c to 40 GeV/ c , thereby restricting the range in Bjorken- x to 0.010.75 . For very large values of z , i.e. z>0.8 , we observe the kaon multiplicity ratio to fall below the lower limits expected from calculations based on leading and next-to-leadin...
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