Search for a narrow baryonic state decaying to and in deep inelastic scattering at HERA

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• 作者：ZEUS CollaborationH. Abramowicz^y ; ³¹ ; I. Abt^t ; L. Adamczyk^h ; M. Adamus^ae ; S. Antonelli^b ; V. Aushev^q ; O. Behnke^j ; U. Behrens^j ; A. Bertolin^v ; S. Bhadra^ag ; I. Bloch^k ; E.G. Boos^o ; I. Brock^c ; N.H. Brook^ac ; R. Brugnera^w ; A. Bruni^a ; P.J. Bussey^l ; A. Caldwell^t ; M. Capua^e ; C.D. Catterall^ag ; J. Chwastowski^g ; J. Ciborowski^ad ; ³³ ; R. Ciesielski^j ; ¹⁶ ; A.M. Cooper-Sarkar^u ; M. Corradi^a ; ¹¹ ; R.K. Dementiev^s ; R.C.E. Devenish^u ; S. Dusini^v ; B. Foster^m ; ²³ ; G. Gach^h ; E. Gallo^m ; ²⁴ ; A. Garfagnini^w ; A. Geiser^j ; A. Gizhko^j ; L.K. Gladilin^s ; Yu.A. Golubkov^s ; G. Grzelak^ad ; M. Guzik^h ; C. Gwenlan^u ; W. Hain^j ; O. Hlushchenko^q ; D. Hochman^af ; R. Horiⁿ ; Z.A. Ibrahim^f ; Y. Iga^x ; M. Ishitsuka^z ; F. Januschek^j ; ¹⁷ ; N.Z. Jomhari^f ; I. Kadenko^q ; S. Kananov^y ; U. Karshon^af ; P. Kaur^d ; ¹² ; D. Kisielewska^h ; R. Klanner^m ; U. Klein^j ; ¹⁸ ; I.A. Korzhavina^s ; A. Kotańskiⁱ ; U. Kö ; tz^j ; N. Kovalchuk^m ; H. Kowalski^j ; B. Krupa^g ; O. Kuprash^j ; ¹⁹ ; M. Kuze^z ; B.B. Levchenko^s ; A. Levy^y ; S. Limentani^w ; M. Lisovyi^j ; ²⁰ ; E. Lobodzinska^j ; B. Lö ; hr^j ; E. Lohrmann^m ; A. Longhin^v ; ³⁰ ; D. Lontkovskyi^j ; O.Yu. Lukina^s ; I. Makarenko^j ; J. Malka^j ; A. Mastroberardino^e ; F. Mohamad Idris^f ; ¹⁴ ; N. Mohammad Nasir^f ; V. Myronenko^j ; ²¹ ; K. Naganoⁿ ; T. Nobe^z ; R.J. Nowak^ad ; Yu. Onishchuk^q ; E. Paul^c ; W. Perlański^ad ; ³⁴ ; N.S. Pokrovskiy^o ; A. Polini^a ; M. Przybycień^h ; P. Roloff^j ; ²² ; M. Ruspa^ab ; D.H. Saxon^l ; M. Schioppa^e ; U. Schneekloth^j ; T. Schö ; rner-Sadenius^j ; L.M. Shcheglova^s ; R. Shevchenko^q ; ²⁷ ; ²⁸ ; O. Shkola^q ; Yu. Shyrma^p ; I. Singh^d ; ¹³ ; I.O. Skillicorn^l ; W. Słomińskiⁱ ; ¹⁵ ; A. Solano^aa ; L. Stanco^v ; N. Stefaniuk^j ; A. Stern^y ; P. Stopa^g ; J. Sztuk-Dambietz^m ; ¹⁷ ; E. Tassi^e ; K. Tokushukuⁿ ; ²⁵ ; J. Tomaszewska^ad ; ³⁵ ; T. Tsurugai^r ; M. Turcato^m ; ¹⁷ ; O. Turkot^j ; ²¹ ; T. Tymieniecka^ae ; A. Verbytskyi^t ; W.A.T. Wan Abdullah^f ; K. Wichmann^j ; ²¹ ; M. Wing^ac ; ³² ; ^{m.wing@ucl.ac.uk" class="auth_mail" title="E-mail the corresponding author} ; S. Yamadaⁿ ; Y. Yamazakiⁿ ; ²⁶ ; N. Zakharchuk^q ; ²⁹ ; A.F. Żarnecki^ad ; L. Zawiejski^g ; O. Zenaiev^j ; B.O. Zhautykov^o ; D.S. Zotkin^s
• 刊名：Physics Letters B
• 出版年：2016
• 出版时间：10 August 2016
• 年：2016
• 卷：759
• 期：Complete
• 页码：446-453
• 全文大小：1119 K

文摘

A search for a narrow baryonic state in the hmlsrc">he MathML source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269316302520&_mathId=si1.gif&_user=111111111&_pii=S0370269316302520&_rdoc=1&_issn=03702693&md5=02fa5604fa5a53f4a481c3723fcf4687">height="18" width="27" alt="View the MathML source" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0370269316302520-si1.gif">hContainer hidden">hCode">h altimg="si1.gif" overflow="scroll">pKS0h> and hmlsrc">he MathML source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269316302520&_mathId=si2.gif&_user=111111111&_pii=S0370269316302520&_rdoc=1&_issn=03702693&md5=4fea0e3f681dc95ee5a70b4f8ce6388d">height="18" width="27" alt="View the MathML source" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0370269316302520-si2.gif">hContainer hidden">hCode">h altimg="si2.gif" overflow="scroll">p‾KS0h> system has been performed in ep   collisions at HERA with the ZEUS detector using an integrated luminosity of hmlsrc">he MathML source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269316302520&_mathId=si21.gif&_user=111111111&_pii=S0370269316302520&_rdoc=1&_issn=03702693&md5=c43c9657c888afd70d86e8ec1c61f634">height="17" width="58" alt="View the MathML source" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0370269316302520-si21.gif">hContainer hidden">hCode">h altimg="si21.gif" overflow="scroll">358h="0.25em">pb−1h> taken in 2003–2007. The search was performed with deep inelastic scattering events at an ep   centre-of-mass energy of hmlsrc">he MathML source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269316302520&_mathId=si6.gif&_user=111111111&_pii=S0370269316302520&_rdoc=1&_issn=03702693&md5=d88da4ccbc15736c55dae54bc3031b1d">height="10" width="54" alt="View the MathML source" style="margin-top: -5px; vertical-align: middle" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0370269316302520-si6.gif">hContainer hidden">hCode">h altimg="si6.gif" overflow="scroll">318h="0.25em">GeVh> for exchanged photon virtuality, hmlsrc">hImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269316302520&_mathId=si7.gif&_user=111111111&_pii=S0370269316302520&_rdoc=1&_issn=03702693&md5=26af6d65fe16b54c90231c07e66a6d52" title="Click to view the MathML source">Q²hContainer hidden">hCode">h altimg="si7.gif" overflow="scroll">Q2h>, between 20 and hmlsrc">he MathML source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269316302520&_mathId=si8.gif&_user=111111111&_pii=S0370269316302520&_rdoc=1&_issn=03702693&md5=5f25732403830e090e2c9946d3898901">height="13" width="59" alt="View the MathML source" style="margin-top: -5px; vertical-align: middle" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0370269316302520-si8.gif">hContainer hidden">hCode">h altimg="si8.gif" overflow="scroll">100h="0.25em">GeV2h>. Contrary to evidence presented for such a state around 1.52 GeV in a previous ZEUS analysis using a sample of hmlsrc">hImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269316302520&_mathId=si9.gif&_user=111111111&_pii=S0370269316302520&_rdoc=1&_issn=03702693&md5=3e1f95738e39753a6271218d65694076" title="Click to view the MathML source">121 pb⁻¹hContainer hidden">hCode">h altimg="si9.gif" overflow="scroll">121 pb−1h> taken in 1996–2000, no resonance peak was found in the hmlsrc">he MathML source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269316302520&_mathId=si10.gif&_user=111111111&_pii=S0370269316302520&_rdoc=1&_issn=03702693&md5=79598f9ee0ef4c97bf1544a28b2a81e3">height="18" width="46" alt="View the MathML source" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0370269316302520-si10.gif">hContainer hidden">hCode">h altimg="si10.gif" overflow="scroll">phy="false">(p‾hy="false">)KS0h> invariant-mass distribution in the range 1.45–1.7 GeV. Upper limits on the production cross section are set.