Total and differential cross sections of η-production in proton–deuteron fusion for excess energies between Qη = 13 MeV and Qη = 81 MeV

Adlarson P.; Augustyniak W.; Bardan W.; Bashkanov M.; Bergmann F. S.; Berlowski M.; Bondar A.; Buscher M.; Calen H.; Ciepal I.; Clement H.; Czerwinski E.; Demmich K.; Engels R.; Erven A.; Erven W.; Eyrich W.; Fedorets P.; Fohl K.; Fransson K.; Goldenbaum F.; Goswami A.; Grigoryev K.; Gullstrom C. -O.; Heijkenskjold L.; Hejny V.; Husken N.; Jarczyk L.; Johansson T.; Kamys B.; Kemmerling G.; Khatri G.; Khoukaz A.; Khreptak A.; Kirillov D. A.; Kistryn S.; Kleines H.; Klos B.; Krzemien W.; Kulessa P.; Kupsc A.; Kuzmin A.; Lalwani K.; Lersch D.; Lorentz B.; Magiera A.; Maier R.; Marciniewski P.; Marianski B.; Morsch H. -P.; Moskal P.; Ohm H.; Parol W.; Perez del Rio E.; Piskunov N. M.; Prasuhn D.; Pszczel D.; Pysz K.; Pyszniak A.; Ritman J.; Roy A.; Rudy Z.; Rundel O.; Sawant S.; Schadmand S.; Schatti-Ozerianska I.; Sefzick T.; Serdyuk V.; Shwartz B.; Sitterberg K.; Skorodko T.; Skurzok M.; Smyrski J.; Sopov V.; Stassen R.; Stepaniak J.; Stephan E.; Sterzenbach G.; Stockhorst H.; Stroher H.; Szczurek A.; Trzcinski A.; Wolke M.; Wronska A.; Wustner P.; Yamamoto A.; Zabierowski J.; Zielinski M. J.; Zlomanczuk J.; Zupranski P.; Zurek M.; Wilkin C.

doi:10.1016/j.physletb.2018.05.036

New data on both total and differential cross sections of the production of η mesons in proton–deuteron fusion to He3η in the excess energy region 13.6MeV≤Qη≤80.9MeV are presented. These data have been obtained with the WASA-at-COSY detector setup located at the Forschungszentrum Jülich, using a proton beam at 15 different beam momenta between pp=1.60GeV/c and pp=1.74GeV/c. While significant structure of the total cross section is observed in the energy region 20MeV≲Qη≲60MeV, a previously reported sharp variation around Qη≈50MeV cannot be confirmed. Angular distributions show the typical forward-peaking that was noted earlier. For the first time, it is possible to study the development of these angular distributions with rising excess energy over a wide interval.

Total and differential cross sections of η-production in proton–deuteron fusion for excess energies between Qη = 13 MeV and Qη = 81 MeV / Adlarson, P., Augustyniak, W., Bardan, W., Bashkanov, M., Bergmann, F.S., Berlowski, M., Bondar, A., Buscher, M., Calen, H., Ciepal, I., Clement, H., Czerwinski, E., Demmich, K., Engels, R., Erven, A., Erven, W., Eyrich, W., Fedorets, P., Fohl, K., Fransson, K., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 782:(2018), pp. 297-304. [10.1016/j.physletb.2018.05.036]

Total and differential cross sections of η-production in proton–deuteron fusion for excess energies between Qη = 13 MeV and Qη = 81 MeV

Adlarson P.;Augustyniak W.;Bardan W.;Bashkanov M.;Bergmann F. S.;Berlowski M.;Bondar A.;Buscher M.;Calen H.;Ciepal I.;Clement H.;Czerwinski E.;Demmich K.;Engels R.;Erven A.;Erven W.;Eyrich W.;Fedorets P.;Fohl K.;Fransson K.;Goldenbaum F.;Goswami A.;Grigoryev K.;Gullstrom C. -O.;Heijkenskjold L.;Hejny V.;Husken N.;Jarczyk L.;Johansson T.;Kamys B.;Kemmerling G.;Khatri G.;Khoukaz A.;Khreptak A.;Kirillov D. A.;Kistryn S.;Kleines H.;Klos B.;Krzemien W.;Kulessa P.;Kupsc A.;Kuzmin A.;Lalwani K.;Lersch D.;Lorentz B.;Magiera A.;Maier R.;Marciniewski P.;Marianski B.;Morsch H. -P.;Moskal P.;Ohm H.;Parol W.;Perez del Rio E.;Piskunov N. M.;Prasuhn D.;Pszczel D.;Pysz K.;Pyszniak A.;Ritman J.;Roy A.;Rudy Z.;Rundel O.;Sawant S.;Schadmand S.;Schatti-Ozerianska I.;Sefzick T.;Serdyuk V.;Shwartz B.;Sitterberg K.;Skorodko T.;Skurzok M.;Smyrski J.;Sopov V.;Stassen R.;Stepaniak J.;Stephan E.;Sterzenbach G.;Stockhorst H.;Stroher H.;Szczurek A.;Trzcinski A.;Wolke M.;Wronska A.;Wustner P.;Yamamoto A.;Zabierowski J.;Zielinski M. J.;Zlomanczuk J.;Zupranski P.;Zurek M.;Wilkin C.

2018

Abstract

New data on both total and differential cross sections of the production of η mesons in proton–deuteron fusion to He3η in the excess energy region 13.6MeV≤Qη≤80.9MeV are presented. These data have been obtained with the WASA-at-COSY detector setup located at the Forschungszentrum Jülich, using a proton beam at 15 different beam momenta between pp=1.60GeV/c and pp=1.74GeV/c. While significant structure of the total cross section is observed in the energy region 20MeV≲Qη≲60MeV, a previously reported sharp variation around Qη≈50MeV cannot be confirmed. Angular distributions show the typical forward-peaking that was noted earlier. For the first time, it is possible to study the development of these angular distributions with rising excess energy over a wide interval.

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	Anno di pubblicazione
	
				2018
			
	Parole chiave
	
				Meson production; Proton–deuteron interactions; η meson
			
	Tipologia
	
				01 Pubblicazione su rivista::01a Articolo in rivista
			
	Citazione
	
				Total and differential cross sections of η-production in proton–deuteron fusion for excess energies between Qη = 13 MeV and Qη = 81 MeV / Adlarson, P., Augustyniak, W., Bardan, W., Bashkanov, M., Bergmann, F.S., Berlowski, M., Bondar, A., Buscher, M., Calen, H., Ciepal, I., Clement, H., Czerwinski, E., Demmich, K., Engels, R., Erven, A., Erven, W., Eyrich, W., Fedorets, P., Fohl, K., Fransson, K., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 782:(2018), pp. 297-304. [10.1016/j.physletb.2018.05.036]

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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1417441

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