Charmonium production in pNe collisions at $$\sqrt{s_{\scriptscriptstyle \text {NN}}} =68.5$$ GeV
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Published:2023-07-17
Issue:7
Volume:83
Page:
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ISSN:1434-6052
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Container-title:The European Physical Journal C
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language:en
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Short-container-title:Eur. Phys. J. C
Author:
Aaij R.ORCID, Abdelmotteleb A. S. W.ORCID, Beteta C. Abellan, Abudinén F.ORCID, Ackernley T.ORCID, Adeva B.ORCID, Adinolfi M.ORCID, Afsharnia H., Agapopoulou C.ORCID, Aidala C. A.ORCID, Aiola S.ORCID, Ajaltouni Z., Akar S.ORCID, Akiba K.ORCID, Albrecht J.ORCID, Alessio F.ORCID, Alexander M.ORCID, Alfonso Albero A.ORCID, Aliouche Z.ORCID, Alvarez Cartelle P.ORCID, Amalric R.ORCID, Amato S.ORCID, Amey J. L.ORCID, Amhis Y.ORCID, An L.ORCID, Anderlini L.ORCID, Andersson M.ORCID, Andreianov A.ORCID, Andreotti M.ORCID, Andreou D.ORCID, Ao D.ORCID, Archilli F.ORCID, Artamonov A.ORCID, Artuso M.ORCID, Aslanides E.ORCID, Atzeni M.ORCID, Audurier B.ORCID, Bachmann S.ORCID, Bachmayer M.ORCID, Back J. J.ORCID, Bailly-reyre A., Baladron Rodriguez P.ORCID, Balagura V.ORCID, Baldini W.ORCID, Baptista de Souza Leite J.ORCID, Barbetti M.ORCID, Barlow R. J.ORCID, Barsuk S.ORCID, Barter W.ORCID, Bartolini M.ORCID, Baryshnikov F.ORCID, Basels J. M.ORCID, Bassi G.ORCID, Batsukh B.ORCID, Battig A.ORCID, Bay A.ORCID, Beck A.ORCID, Becker M.ORCID, Bedeschi F.ORCID, Bediaga I. B.ORCID, Beiter A., Belavin V., Belin S.ORCID, Bellee V.ORCID, Belous K.ORCID, Belov I.ORCID, Belyaev I.ORCID, Benane G.ORCID, Bencivenni G.ORCID, Ben-Haim E.ORCID, Berezhnoy A.ORCID, Bernet R.ORCID, Berninghoff D., Bernstein H. C., Bertella C.ORCID, Bertolin A.ORCID, Betancourt C.ORCID, Betti F.ORCID, Bezshyiko Ia.ORCID, Bhasin S.ORCID, Bhom J.ORCID, Bian L.ORCID, Bieker M. S.ORCID, Biesuz N. V.ORCID, Bifani S.ORCID, Billoir P.ORCID, Biolchini A.ORCID, Birch M.ORCID, Bishop F. C. R.ORCID, Bitadze A.ORCID, Bizzeti A.ORCID, Blago M. P.ORCID, Blake T.ORCID, Blanc F.ORCID, Blusk S.ORCID, Bobulska D.ORCID, Boelhauve J. A.ORCID, Boente Garcia O.ORCID, Boettcher T.ORCID, Boldyrev A.ORCID, Bolognani C. S.ORCID, Bondar N.ORCID, Borghi S.ORCID, Borsato M.ORCID, Borsuk J. T.ORCID, Bouchiba S. A.ORCID, Bowcock T. J. V.ORCID, Boyer A.ORCID, Bozzi C.ORCID, Bradley M. J., Braun S.ORCID, Brea Rodriguez A.ORCID, Brodzicka J.ORCID, Brossa Gonzalo A.ORCID, Brundu D.ORCID, Buonaura A.ORCID, Buonincontri L.ORCID, Burke A. T.ORCID, Burr C.ORCID, Bursche A., Butkevich A.ORCID, Butter J. S.ORCID, Buytaert J.ORCID, Byczynski W.ORCID, Cadeddu S.ORCID, Cai H., Calabrese R.ORCID, Calefice L.ORCID, Cali S.ORCID, Calladine R., Calvi M.ORCID, Calvo Gomez M.ORCID, Campana P.ORCID, Campora Perez D. H.ORCID, Campoverde Quezada A. F.ORCID, Capelli S.ORCID, Capriotti L.ORCID, Carbone A.ORCID, Carboni G.ORCID, Cardinale R.ORCID, Cardini A.ORCID, Carli I.ORCID, Carniti P.ORCID, Carus L., Casais Vidal A.ORCID, Caspary R.ORCID, Casse G.ORCID, Cattaneo M.ORCID, Cavallero G.ORCID, Cavallini V.ORCID, Celani S.ORCID, Cerasoli J.ORCID, Cervenkov D.ORCID, Chadwick A. J.ORCID, Chapman M. G., Charles M.ORCID, Charpentier Ph.ORCID, Chavez Barajas C. A.ORCID, Chefdeville M.ORCID, Chen C.ORCID, Chen S.ORCID, Chernov A.ORCID, Chernyshenko S.ORCID, Chobanova V.ORCID, Cholak S.ORCID, Chrzaszcz M.ORCID, Chubykin A.ORCID, Chulikov V.ORCID, Ciambrone P.ORCID, Cicala M. F.ORCID, Cid Vidal X.ORCID, Ciezarek G.ORCID, Ciullo G.ORCID, Clarke P. E. L.ORCID, Clemencic M.ORCID, Cliff H. V.ORCID, Closier J.ORCID, Cobbledick J. L.ORCID, Coco V.ORCID, Coelho J. A. B.ORCID, Cogan J.ORCID, Cogneras E.ORCID, Cojocariu L.ORCID, Collins P.ORCID, Colombo T.ORCID, Congedo L.ORCID, Contu A.ORCID, Cooke N.ORCID, Coombs G.ORCID, Corredoira I.ORCID, Corti G.ORCID, Couturier B.ORCID, Craik D. C.ORCID, Crkovská J.ORCID, Cruz Torres M.ORCID, Currie R.ORCID, Da Silva C. L.ORCID, Dadabaev S.ORCID, Dai L.ORCID, Dai X.ORCID, Dall’Occo E.ORCID, Dalseno J.ORCID, D’Ambrosio C.ORCID, Danilina A.ORCID, d’Argent P.ORCID, Davies J. E.ORCID, Davis A.ORCID, De Aguiar Francisco O.ORCID, de Boer J.ORCID, De Bruyn K.ORCID, De Capua S.ORCID, De Cian M.ORCID, De Freitas Carneiro Da Graca U.ORCID, De Lucia E.ORCID, De Miranda J. M.ORCID, De Paula L.ORCID, De Serio M.ORCID, De Simone D.ORCID, De Simone P.ORCID, De Vellis F.ORCID, de Vries J. A.ORCID, Dean C. T.ORCID, Debernardis F.ORCID, Decamp D.ORCID, Dedu V.ORCID, Del Buono L.ORCID, Delaney B.ORCID, Dembinski H.-P.ORCID, Denysenko V.ORCID, Deschamps O.ORCID, Dettori F.ORCID, Dey B.ORCID, Di Cicco A.ORCID, Di Nezza P.ORCID, Diachkov I.ORCID, Didenko S.ORCID, Maronas L. Dieste, Ding S.ORCID, Dobishuk V.ORCID, Dolmatov A., Dong C.ORCID, Donohoe A. M.ORCID, Dordei F.ORCID, dos Reis A. C.ORCID, Douglas L., Downes A. G.ORCID, Dudek M. W.ORCID, Dufour L.ORCID, Duk V.ORCID, Durante P.ORCID, Durham J. M.ORCID, Dutta D.ORCID, Dziurda A.ORCID, Dzyuba A.ORCID, Easo S.ORCID, Egede U.ORCID, Egorychev V.ORCID, Eidelman S., Orro C. Eirea, Eisenhardt S.ORCID, Ek-In S.ORCID, Eklund L.ORCID, Ely S.ORCID, Ene A.ORCID, Epple E.ORCID, Escher S.ORCID, Eschle J.ORCID, Esen S.ORCID, Evans T.ORCID, Falcao L. N.ORCID, Fan Y.ORCID, Fang B.ORCID, Farry S.ORCID, Fazzini D.ORCID, Feo M.ORCID, Fernez A. D.ORCID, Ferrari F.ORCID, Ferreira Lopes L.ORCID, Ferreira Rodrigues F.ORCID, Ferreres Sole S.ORCID, Ferrillo M.ORCID, Ferro-Luzzi M.ORCID, Filippov S.ORCID, Fini R. A.ORCID, Fiorini M.ORCID, Firlej M.ORCID, Fischer K. M.ORCID, Fitzgerald D. S.ORCID, Fitzpatrick C.ORCID, Fiutowski T.ORCID, Fleuret F.ORCID, Fontana M.ORCID, Fontanelli F.ORCID, Forty R.ORCID, Foulds-Holt D.ORCID, Franco Lima V.ORCID, Franco Sevilla M.ORCID, Frank M.ORCID, Franzoso E.ORCID, Frau G.ORCID, Frei C.ORCID, Friday D. A.ORCID, Fu J.ORCID, Fuehring Q.ORCID, Gabriel E.ORCID, Galati G.ORCID, Galati M. D.ORCID, Gallas Torreira A.ORCID, Galli D.ORCID, Gambetta S.ORCID, Gan Y.ORCID, Gandelman M.ORCID, Gandini P.ORCID, Gao Y.ORCID, Garau M.ORCID, Garcia Martin L. M.ORCID, Garcia Moreno P.ORCID, García Pardiñas J.ORCID, Garcia Plana B., Garcia Rosales F. A.ORCID, Garrido L.ORCID, Gaspar C.ORCID, Geertsema R. E.ORCID, Gerick D., Gerken L. L.ORCID, Gersabeck E.ORCID, Gersabeck M.ORCID, Gershon T.ORCID, Giambastiani L.ORCID, Gibson V.ORCID, Giemza H. K.ORCID, Gilman A. L.ORCID, Giovannetti M.ORCID, Gioventù A.ORCID, Gironella Gironell P.ORCID, Giugliano C.ORCID, Giza M. A.ORCID, Gizdov K.ORCID, Gkougkousis E. L.ORCID, Gligorov V. V.ORCID, Göbel C.ORCID, Golobardes E.ORCID, Golubkov D.ORCID, Golutvin A.ORCID, Gomes A.ORCID, Gomez Fernandez S.ORCID, Goncalves Abrantes F.ORCID, Goncerz M.ORCID, Gong G.ORCID, Gorelov I. V.ORCID, Gotti C.ORCID, Grabowski J. P.ORCID, Grammatico T.ORCID, Granado Cardoso L. A.ORCID, Graugés E.ORCID, Graverini E.ORCID, Graziani G.ORCID, Grecu A. T.ORCID, Greeven L. M.ORCID, Grieser N. A.ORCID, Grillo L.ORCID, Gromov S.ORCID, Gruberg Cazon B. R.ORCID, Gu C.ORCID, Guarise M.ORCID, Guittiere M.ORCID, Günther P. A.ORCID, Gushchin E.ORCID, Guth A., Guz Y.ORCID, Gys T.ORCID, Hadavizadeh T.ORCID, Haefeli G.ORCID, Haen C.ORCID, Haimberger J.ORCID, Haines S. C.ORCID, Halewood-leagas T.ORCID, Halvorsen M. M.ORCID, Hamilton P. M.ORCID, Hammerich J.ORCID, Han Q.ORCID, Han X.ORCID, Hansen E. B.ORCID, Hansmann-Menzemer S.ORCID, Hao L.ORCID, Harnew N.ORCID, Harrison T.ORCID, Hasse C.ORCID, Hatch M.ORCID, He J.ORCID, Heijhoff K.ORCID, Heinicke K.ORCID, Henderson C.ORCID, Henderson R. D. L.ORCID, Hennequin A. M.ORCID, Hennessy K.ORCID, Henry L.ORCID, Heuel J.ORCID, Hicheur A.ORCID, Hill D.ORCID, Hilton M.ORCID, Hollitt S. E.ORCID, Hou R.ORCID, Hou Y.ORCID, Hu J., Hu J.ORCID, Hu W.ORCID, Hu X.ORCID, Huang W.ORCID, Huang X., Hulsbergen W.ORCID, Hunter R. 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R.ORCID, Koliiev S.ORCID, Kondybayeva A.ORCID, Konoplyannikov A.ORCID, Kopciewicz P.ORCID, Kopecna R., Koppenburg P.ORCID, Korolev M.ORCID, Kostiuk I.ORCID, Kot O., Kotriakhova S.ORCID, Kozachuk A.ORCID, Kravchenko P.ORCID, Kravchuk L.ORCID, Krawczyk R. D.ORCID, Kreps M.ORCID, Kretzschmar S.ORCID, Krokovny P.ORCID, Krupa W.ORCID, Krzemien W.ORCID, Kubat J., Kucewicz W.ORCID, Kucharczyk M.ORCID, Kudryavtsev V.ORCID, Kunde G. J., Kupsc A.ORCID, Lacarrere D.ORCID, Lafferty G.ORCID, Lai A.ORCID, Lampis A.ORCID, Lancierini D.ORCID, Landesa Gomez C.ORCID, Lane J. J.ORCID, Lane R.ORCID, Lanfranchi G.ORCID, Langenbruch C.ORCID, Langer J.ORCID, Lantwin O.ORCID, Latham T.ORCID, Lazzari F.ORCID, Lazzaroni M.ORCID, Le Gac R.ORCID, Lee S. 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A.ORCID, Millard E., Milovanovic M.ORCID, Minard M.-N., Minotti A.ORCID, Mitchell S. E.ORCID, Mitreska B.ORCID, Mitzel D. S.ORCID, Mödden A.ORCID, Mohammed R. A.ORCID, Moise R. D.ORCID, Mokhnenko S.ORCID, Mombächer T.ORCID, Monroy I. A.ORCID, Monteil S.ORCID, Morandin M.ORCID, Morello G.ORCID, Morello M. J.ORCID, Moron J.ORCID, Morris A. B.ORCID, Morris A. G.ORCID, Mountain R.ORCID, Mu H.ORCID, Muheim F.ORCID, Mulder M.ORCID, Müller K.ORCID, Murphy C. H.ORCID, Murray D.ORCID, Murta R.ORCID, Muzzetto P.ORCID, Naik P.ORCID, Nakada T.ORCID, Nandakumar R.ORCID, Nanut T.ORCID, Nasteva I.ORCID, Needham M.ORCID, Neri N.ORCID, Neubert S.ORCID, Neufeld N.ORCID, Neustroev P., Newcombe R., Niel E. M.ORCID, Nieswand S., Nikitin N.ORCID, Nolte N. S.ORCID, Normand C.ORCID, Novoa Fernandez J.ORCID, Nunez C.ORCID, Oblakowska-Mucha A.ORCID, Obraztsov V.ORCID, Oeser T.ORCID, O’Hanlon D. P.ORCID, Okamura S.ORCID, Oldeman R.ORCID, Oliva F.ORCID, Olivares M. E., Onderwater C. J. G.ORCID, O’Neil R. 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Abstract
AbstractThe measurement of charmonium states produced in proton-neon ($$p\text {Ne}$$
p
Ne
) collisions by the LHCb experiment in its fixed-target configuration is presented. The production of $${{J} \hspace{-1.66656pt}/\hspace{-1.111pt}\psi }$$
J
/
ψ
and $$\psi {(2S)}$$
ψ
(
2
S
)
mesons is studied with a beam of 2.5$$\mathrm{\,Te\hspace{-1.00006pt}V}$$
Te
V
protons colliding on gaseous neon targets at rest, corresponding to a nucleon-nucleon centre-of-mass energy $$\sqrt{s_{\scriptscriptstyle \text {NN}}} =68.5\mathrm{\,Ge\hspace{-1.00006pt}V} $$
s
NN
=
68.5
Ge
V
. The data sample corresponds to an integrated luminosity of $$21.7\pm 1.4 $$
21.7
±
1.4
nb$$^{-1}$$
-
1
. The $${{J} \hspace{-1.66656pt}/\hspace{-1.111pt}\psi }$$
J
/
ψ
and $$\psi {(2S)}$$
ψ
(
2
S
)
hadrons are reconstructed in $$\mu ^+$$
μ
+
$$\mu ^-$$
μ
-
final states. The $${{J} \hspace{-1.66656pt}/\hspace{-1.111pt}\psi }$$
J
/
ψ
production cross-section per target nucleon in the centre-of-mass rapidity range $$y^\star \in [-2.29, 0]$$
y
⋆
∈
[
-
2.29
,
0
]
is found to be $$506 \pm 8 \pm 46 \text { nb/nucleon}$$
506
±
8
±
46
nb/nucleon
. The ratio of $${{J} \hspace{-1.66656pt}/\hspace{-1.111pt}\psi }$$
J
/
ψ
and $$D^0$$
D
0
cross-sections is evaluated to $$(1.06 \pm 0.02 \pm 0.09)\%$$
(
1.06
±
0.02
±
0.09
)
%
. The $$\psi {(2S)}$$
ψ
(
2
S
)
to $${{J} \hspace{-1.66656pt}/\hspace{-1.111pt}\psi }$$
J
/
ψ
relative production rate is found to be $$(1.67 \pm 0.27\pm 0.10)\%$$
(
1.67
±
0.27
±
0.10
)
%
in good agreement with other measurements involving beam and target nuclei of similar sizes.
Publisher
Springer Science and Business Media LLC
Subject
Physics and Astronomy (miscellaneous),Engineering (miscellaneous)
Reference37 articles.
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