Measurement of prompt D+ and $$ {D}_s^{+} $$ production in pPb collisions at $$ \sqrt{s_{NN}} $$ = 5.02 TeV

Author:

,Aaij R.,Abdelmotteleb A. S. W.,Abellan Beteta C.,Abudinén F.,Ackernley T.,Adeva B.,Adinolfi M.,Adlarson P.,Afsharnia H.,Agapopoulou C.,Aidala C. A.,Ajaltouni Z.,Akar S.,Akiba K.,Albicocco P.,Albrecht J.,Alessio F.,Alexander M.,Alfonso Albero A.,Aliouche Z.,Alvarez Cartelle P.,Amalric R.,Amato S.,Amey J. L.,Amhis Y.,An L.,Anderlini L.,Andersson M.,Andreianov A.,Andreotti M.,Andreou D.,Ao D.,Archilli F.,Artamonov A.,Artuso M.,Aslanides E.,Atzeni M.,Audurier B.,Bachiller Perea I.,Bachmann S.,Bachmayer M.,Back J. J.,Bailly-reyre A.,Baladron Rodriguez P.,Balagura V.,Baldini W.,Baptista de Souza Leite J.,Barbetti M.,Barbosa I. R.,Barlow R. J.,Barsuk S.,Barter W.,Bartolini M.,Baryshnikov F.,Basels J. M.,Bassi G.,Batsukh B.,Battig A.,Bay A.,Beck A.,Becker M.,Bedeschi F.,Bediaga I. B.,Beiter A.,Belin S.,Bellee V.,Belous K.,Belov I.,Belyaev I.,Benane G.,Bencivenni G.,Ben-Haim E.,Berezhnoy A.,Bernet R.,Bernet Andres S.,Berninghoff D.,Bernstein H. C.,Bertella C.,Bertolin A.,Betancourt C.,Betti F.,Bezshyiko Ia.,Bhom J.,Bian L.,Bieker M. S.,Biesuz N. V.,Billoir P.,Biolchini A.,Birch M.,Bishop F. C. R.,Bitadze A.,Bizzeti A.,Blago M. P.,Blake T.,Blanc F.,Blank J. E.,Blusk S.,Bobulska D.,Bocharnikov V.,Boelhauve J. A.,Boente Garcia O.,Boettcher T.,Boldyrev A.,Bolognani C. S.,Bolzonella R.,Bondar N.,Borgato F.,Borghi S.,Borsato M.,Borsuk J. T.,Bouchiba S. A.,Bowcock T. J. V.,Boyer A.,Bozzi C.,Bradley M. J.,Braun S.,Brea Rodriguez A.,Breer N.,Brodzicka J.,Brossa Gonzalo A.,Brown J.,Brundu D.,Buonaura A.,Buonincontri L.,Burke A. T.,Burr C.,Bursche A.,Butkevich A.,Butter J. S.,Buytaert J.,Byczynski W.,Cadeddu S.,Cai H.,Calabrese R.,Calefice L.,Cali S.,Calvi M.,Calvo Gomez M.,Campana P.,Campora Perez D. H.,Campoverde Quezada A. F.,Capelli S.,Capriotti L.,Carbone A.,Cardinale R.,Cardini A.,Carniti P.,Carus L.,Casais Vidal A.,Caspary R.,Casse G.,Cattaneo M.,Cavallero G.,Cavallini V.,Celani S.,Cerasoli J.,Cervenkov D.,Chadwick A. J.,Chahrour I.,Chapman M. G.,Charles M.,Charpentier Ph.,Chavez Barajas C. A.,Chefdeville M.,Chen C.,Chen S.,Chernov A.,Chernyshenko S.,Chobanova V.,Cholak S.,Chrzaszcz M.,Chubykin A.,Chulikov V.,Ciambrone P.,Cicala M. F.,Cid Vidal X.,Ciezarek G.,Cifra P.,Clarke P. E. L.,Clemencic M.,Cliff H. V.,Closier J.,Cobbledick J. L.,Coco V.,Cogan J.,Cogneras E.,Cojocariu L.,Collins P.,Colombo T.,Comerma-Montells A.,Congedo L.,Contu A.,Cooke N.,Corredoira I.,Corti G.,Couturier B.,Craik D. C.,Cruz Torres M.,Currie R.,Da Silva C. L.,Dadabaev S.,Dai L.,Dai X.,Dall’Occo E.,Dalseno J.,D’Ambrosio C.,Daniel J.,Danilina A.,d’Argent P.,Davies J. E.,Davis A.,De Aguiar Francisco O.,de Boer J.,De Bruyn K.,De Capua S.,De Cian M.,De Freitas Carneiro Da Graca U.,De Lucia E.,De Miranda J. M.,De Paula L.,De Serio M.,De Simone D.,De Simone P.,De Vellis F.,de Vries J. A.,Dean C. T.,Debernardis F.,Decamp D.,Dedu V.,Del Buono L.,Delaney B.,Dembinski H.-P.,Denysenko V.,Deschamps O.,Dettori F.,Dey B.,Di Nezza P.,Diachkov I.,Didenko S.,Ding S.,Dobishuk V.,Dolmatov A.,Dong C.,Donohoe A. M.,Dordei F.,dos Reis A. C.,Douglas L.,Downes A. G.,Duda P.,Dudek M. W.,Dufour L.,Duk V.,Durante P.,Duras M. M.,Durham J. M.,Dutta D.,Dziurda A.,Dzyuba A.,Easo S.,Egede U.,Egorychev A.,Egorychev V.,Eirea Orro C.,Eisenhardt S.,Ejopu E.,Ek-In S.,Eklund L.,Elashri M.,Ellbracht J.,Ely S.,Ene A.,Epple E.,Escher S.,Eschle J.,Esen S.,Evans T.,Fabiano F.,Falcao L. N.,Fan Y.,Fang B.,Fantini L.,Faria M.,Farry S.,Fazzini D.,Felkowski L.,Feng M.,Feo M.,Fernandez Gomez M.,Fernez A. D.,Ferrari F.,Ferreira Lopes L.,Ferreira Rodrigues F.,Ferreres Sole S.,Ferrillo M.,Ferro-Luzzi M.,Filippov S.,Fini R. A.,Fiorini M.,Firlej M.,Fischer K. M.,Fitzgerald D. 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Abstract

Abstract The production of prompt D+ and $$ {D}_s^{+} $$ D s + mesons is studied in proton-lead collisions at a centre-of-mass energy of $$ \sqrt{s_{NN}} $$ s NN = 5.02 TeV. The data sample corresponding to an integrated luminosity of (1.58 ± 0.02)nb1 is collected by the LHCb experiment at the LHC. The differential production cross-sections are measured using D+ and $$ {D}_s^{+} $$ D s + candidates with transverse momentum in the range of 0 < pT< 14 GeV/c and rapidities in the ranges of 1.5 < y< 4.0 and –5.0 < y< –2.5 in the nucleon-nucleon centre-of-mass system. For both particles, the nuclear modification factor and the forward-backward production ratio are determined. These results are compared with theoretical models that include initial-state nuclear effects. In addition, measurements of the cross-section ratios between D+, $$ {D}_s^{+} $$ D s + and D0 mesons are presented, providing a baseline for studying the charm hadronization in lead-lead collisions at LHC energies.

Publisher

Springer Science and Business Media LLC

Subject

Nuclear and High Energy Physics

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