Measurement of the Prompt D0 Nuclear Modification Factor in p-Pb Collisions at sNN=8.16 TeV
R. Aaij,A. S. W. Abdelmotteleb,C. Abellan Beteta,F. Abudinen,T. Ackernley,B. Adeva, M. Adinolfi,P. Adlarson,H. Afsharnia,C. Agapopoulou,C. A. Aidala,Z. Ajaltouni,S. Akar,K. Akiba,P. Albicocco,J. Albrecht,F. Alessio,M. Alexander, A. Alfonso Albero,Z. Aliouche,P. Alvarez Cartelle,R. Amalric,S. Amato,J. L. Amey,Y. Amhis,L. An,L. Anderlini,M. Andersson,A. Andreianov,M. Andreotti,D. Andreou,D. Ao,F. Archilli,A. Artamonov,M. Artuso,E. Aslanides,M. Atzeni,B. Audurier,I. Bachiller Perea,S. Bachmann,M. Bachmayer,J. J. Back,P. Baladron Rodriguez,V. Balagura,W. Baldini,J. Baptista de Souza Leite,M. Barbetti,R. J. Barlow,S. Barsuk,W. Barter,M. Bartolini,F. Baryshnikov,J. M. Basels,G. Bassi,B. Batsukh,A. Battig,A. Bay,A. Beck,M. Becker,F. Bedeschi,I. B. Bediaga,S. Belin,V. Bellee,K. Belous,I. Belov,I. Belyaev,G. Benane, G. Bencivenni,E. Ben-Haim,A. Berezhnoy,R. Bernet,S. Bernet Andres,H. C. Bernstein,C. Bertella,A. Bertolin,C. Betancourt,F. Betti,Ia. Bezshyiko,J. Bhom,L. Bian,M. S. Bieker,N. V. Biesuz,P. Billoir,A. Biolchini,M. Birch,F. C. R. Bishop,A. Bitadze,A. Bizzeti,M. P. Blago,T. Blake,F. Blanc,J. E. Blank,S. Blusk,D. Bobulska,V. B. Bocharnikov,J. A. Boelhauve,O. Boente Garcia,T. Boettcher,A. Boldyrev,C. S. Bolognani,R. Bolzonella,N. Bondar,F. Borgato,S. Borghi,M. Borsato,J. T. Borsuk,S. A. Bouchiba,T. J. V. Bowcock,A. Boyer,C. Bozzi,M. J. Bradley,S. Braun,A. Brea Rodriguez,N. Breer,J. Brodzicka,A. Brossa Gonzalo,J. Brown,D. Brundu,A. Buonaura,L. Buonincontri,A. T. Burke,C. Burr,A. Butkevich,J. S. Butter,J. Buytaert,W. Byczynski,S. Cadeddu,R. Calabrese,L. Calefice,S. Cali,M. Calvi,M. Calvo Gomez,P. Campana,D. H. Campora Perez,A. F. Campoverde Quezada,S. Capelli,L. Capriotti,A. Carbone,R. Cardinale, A. Cardini,P. Carniti,A. Casais Vidal,R. Caspary,G. Casse,M. Cattaneo,G. Cavallero,V. Cavallini,S. Celani,J. Cerasoli,D. Cervenkov,A. J. Chadwick,I. Chahrour,M. G. Chapman,M. Charles,Ph. Charpentier,C. A. Chavez Barajas,M. Chefdeville,C. Chen,S. Chen,A. Chernov,S. Chernyshenko,V. Chobanova,S. Cholak,M. Chrzaszcz,A. Chubykin,V. Chulikov,P. Ciambrone,M. F. Cicala,X. Cid Vidal,G. Ciezarek,P. Cifra,G. Ciullo,P. E. L. Clarke,M. Clemencic,H. V. Cliff,J. Closier,J. L. Cobbledick,V. Coco,J. Cogan,E. Cogneras,L. Cojocariu,P. Collins,T. Colombo,L. Congedo,A. Contu,N. Cooke,I. Corredoira,G. Corti,B. Couturier,D. C. Craik,M. Cruz Torres,R. Currie,C. L. Da Silva,S. Dadabaev,L. Dai,X. Dai,E. Dall' Occo,J. Dalseno,C. D' Ambrosio,J. Daniel,A. Danilina,P. d'Argent,J. E. Davies,A. Davis,O. De Aguiar Francisco,J. de Boer,K. De Bruyn,S. De Capua,M. De Cian,U. De Freitas Carneiro Da Graca,E. De Lucia,J. M. De Miranda,L. De Paula,M. De Serio,D. De Simone,P. De Simone,F. De Vellis,J. A. de Vries, C. T. Dean,F. Debernardis,D. Decamp,V. Dedu,L. Del Buono,B. Delaney,H. -P. Dembinski,V. Denysenko,O. Deschamps,F. Dettori,B. Dey,P. Di Nezza,I. Diachkov,S. Didenko,L. Dieste Maronas,S. Ding,V. Dobishuk, C. Dong,A. M. Donohoe,F. Dordei,A. C. dos Reis,A. G. Downes,P. Duda,M. W. Dudek,L. Dufour,V. Duk, P. Durante,M. M. Duras,J. M. Durham,D. Dutta,A. Dziurda,A. Dzyuba,S. Easo,U. Egede,A. Egorychev,V. Egorychev,C. Eirea Orro,S. Eisenhardt,E. Ejopu,S. Ek-In,L. Eklund,M. E. Elashri,J. Ellbracht,S. Ely,A. Ene,E. Epple,S. Escher,J. Eschle,S. Esen,T. Evans,F. Fabiano,L. N. Falcao,Y. Fan,B. Fang,L. Fantini,M. Faria,S. Farry,D. Fazzini,L. Felkowski,M. Feo, M. Fernandez Gomez,A. D. Fernez,F. Ferrari,L. Ferreira Lopes,F. Ferreira Rodrigues,S. Ferreres Sole,M. Ferrillo,M. Ferro-Luzzi,S. Filippov,R. A. Fini,M. Fiorini,M. Firlej,K. M. Fischer,D. S. Fitzgerald,C. Fitzpatrick,T. Fiutowski,F. Fleuret,M. Fontana,F. Fontanelli,R. Forty,D. Foulds-Holt,V. Franco Lima,M. Franco Sevilla,M. Frank,E. Franzoso,G. Frau,C. Frei,D. A. Friday,L. Frontini,J. Fu,Q. Fuehring,T. Fulghesu,E. Gabriel, G. Galati,M. D. Galati,A. Gallas Torreira,D. Galli,S. Gambetta,M. Gandelman, P. Gandini,H. G. Gao,R. Gao,Y. Gao,M. Garau,L. M. Garcia Martin,P. Garcia Moreno,J. Garcia Pardinas,B. Garcia Plana,F. A. Garcia Rosales,L. Garrido,C. Gaspar,R. E. Geertsema,D. Gerick,L. L. Gerken,E. Gersabeck,M. Gersabeck,T. Gershon,L. Giambastiani,V. Gibson,H. K. Giemza,A. L. Gilman,M. Giovannetti,A. Gioventu,P. Gironella Gironell,C. Giugliano,M. A. Giza,K. Gizdov,E. L. Gkougkousis,V. V. Gligorov,C. Goebel,E. Golobardes,D. Golubkov,A. Golutvin,A. Gomes,S. Gomez Fernandez,F. Goncalves Abrantes,M. Goncerz,G. Gong,I. V. Gorelov,C. Gotti,J. P. Grabowski,T. Grammatico,L. A. Granado Cardoso,E. Grauges,E. Graverini,G. Graziani,A. T. Grecu,L. M. Greeven,N. A. Grieser,L. Grillo,S. Gromov,B. R. Gruberg Cazon,C. Gu,M. Guarise,M. Guittiere,P. A. Gunther,A. K. Guseinov,E. Gushchin,A. Guth,Y. Guz,T. Gys,T. Hadavizadeh, C. Hadjivasiliou,G. Haefeli, C. Haen,J. Haimberger,S. C. Haines,T. Halewood-Leagas,M. M. Halvorsen,P. M. Hamilton,J. Hammerich,Q. Han,X. Han,S. Hansmann-Menzemer,L. Hao,N. Harnew,T. Harrison,C. Hasse,M. Hatch,J. He,K. Heijhoff,F. H. Hemmer,C. Henderson,R. D. L. Henderson,A. M. Hennequin,K. Hennessy,L. Henry,J. Herd,J. Heuel,A. Hicheur,D. Hill,M. Hilton,S. E. Hollitt,J. Horswill,R. Hou,Y. Hou,J. Hu,W. Hu,X. Hu,W. Huang,X. Huang,W. Hulsbergen, R. J. Hunter,M. Hushchyn,D. Hutchcroft, P. Ibis,M. Idzik, D. Ilin,P. Ilten, A. Inglessi,A. Iniukhin, A. Ishteev,K. Ivshin,R. Jacobsson,H. Jage,S. J. Jaimes Elles,S. Jakobsen,E. Jans,B. K. Jashal, A. Jawahery,V. Jevtic,E. Jiang,X. Jiang,Y. Jiang,M. John,D. Johnson,C. R. Jones,T. P. Jones,S. J. Joshi,B. Jost,N. Jurik,I. Juszczak,S. Kandybei,Y. Kang,M. Karacson,D. Karpenkov,M. Karpov,J. W. Kautz, F. Keizer,D. M. Keller,M. Kenzie,T. Ketel,B. Khanji, A. Kharisova,S. Kholodenko,G. Khreich, T. Kirn,V. S. Kirsebom, O. Kitouni,S. Klaver,N. Kleijne,K. Klimaszewski,M. R. Kmiec,S. Koliiev,L. Kolk,A. Kondybayeva, A. Konoplyannikov,P. Kopciewicz, R. Kopecna,P. Koppenburg, M. Korolev, I. Kostiuk, O. Kot,S. Kotriakhova,A. Kozachuk,P. Kravchenko,L. Kravchuk,M. Kreps, S. Kretzschmar, P. Krokovny,W. Krupa,W. Krzemien,J. Kubat,S. Kubis,W. Kucewicz,M. Kucharczyk,V. Kudryavtsev,E. K. Kulikova,A. Kupsc,D. Lacarrere,G. Lafferty,A. Lai,A. Lampis,D. Lancierini,C. Landesa Gomez, J. J. Lane,R. Lane,C. Langenbruch,J. Langer,O. Lantwin,T. Latham, F. Lazzari, C. Lazzeroni,V. Obraztsov,T. Oeser,S. Okamura,R. Oldeman,F. Oliva,C. J. G. Onderwater,R. H. O'Neil,J. M. Otalora Goicochea,T. Ovsiannikova,P. Owen,A. Oyanguren,O. Ozcelik,K. O. Padeken,B. Pagare, P. R. Pais,T. Pajero, A. Palano, M. Palutan,G. Panshin,L. Paolucci,A. Papanestis,M. Pappagallo,L. L. Pappalardo,C. Pappenheimer, W. Parker,C. Parkes,B. Passalacqua,G. Passaleva,A. Pastore,M. Patel, C. Patrignani, C. J. Pawley,A. Pellegrino,M. Pepe Altarelli,L. E. Yeomans,V. Yeroshenko,H. Yeung,H. Yin,J. Yu,X. Yuan,E. Zaffaroni,M. Zavertyaev,M. Zdybal,M. Zeng,C. Zhang,D. Zhang, J. Zhang, L. Zhang,S. Zhang, Y. Zhang, Y. Zhao,A. Zharkova,A. Zhelezov, Y. Zheng,T. Zhou,X. Zhou,Y. Zhou,V. Zhovkovska,X. Zhu,X. Zhu,Z. Zhu, V. Zhukov,J. Zhuo,Q. Zou,S. Zucchelli,D. Zuliani, G. Zunica
PHYSICAL REVIEW LETTERS（2023）
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摘要
The production of prompt D0 mesons in proton-lead collisions in both the forward and backward rapidity regions at a center-of-mass energy per nucleon pair of ffiffiffiffiffiffiffi p = 8.16 TeV is measured by the sNN LHCb experiment. The nuclear modification factor of prompt D0 mesons is determined as a function of the transverse momentum pT, and the rapidity in the nucleon-nucleon center-of-mass frame y*. In the forward rapidity region, significantly suppressed production with respect to pp collisions is measured, which provides significant constraints on models of nuclear parton distributions and hadron production down to the very low Bjorken-x region of similar to 10-5. In the backward rapidity region, a suppression with a significance of 2.0-3.8 standard deviations compared to parton distribution functions in a nuclear environment expectations is found in the kinematic region of pT 6 GeV/c and -3.25 < y* < -2.5, corresponding to x similar to 0.01.
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