Differential cross sections are presented for the prompt and non-prompt production of the hidden-charm states X(3872) and psi(2S), in the decay mode J/psi pi (+) pi (-), measured using 11.4 fb(-1) of pp collisions at root s = 8 Tev by the ATLAS detector at the LHC. The ratio of cross-sections X(3872)/psi(2S) is also given, separately for prompt and non-prompt components, as well as the non-prompt fractions of X(3872) and psi(2S). Assuming independent single effective lifetimes for non-prompt X(3872) and psi(2S) production gives separating short- and long-lived contributions, assuming that the short-lived component is due to B (c) decays, gives R (B) = (3.57 +/- 0.33(stat) +/- 0.11(sys)) x 10(-2), with the fraction of non-prompt X(3872) produced via B (c) decays for p (T)(X(3872)) > 10 GeV being (25 +/- 13(stat) +/- 2(sys) +/- 5(spin))%. The distributions of the dipion invariant mass in the X(3872) and psi(2S) decays are also measured and compared to theoretical predictions.
Differential cross sections are presented for the prompt and non-prompt production of the hidden-charm states X(3872) and Ï(2S), in the decay mode J/ÏÏ+Ïâ, measured using 11.4 fbâ1of pp collisions at s=8 TeV by the ATLAS detector at the LHC. The ratio of cross-sections X(3872)/Ï(2S) is also given, separately for prompt and non-prompt components, as well as the non-prompt fractions of X(3872) and Ï(2S). Assuming independent single effective lifetimes for non-prompt X(3872) and Ï(2S) production gives RB=â¬(BâX(3872)+any)â¬(X(3872)âJ/ÏÏ+Ïâ)/â¬(BâÏ(2S)+any)â¬(Ï(2S)âJ/ÏÏ+Ïâ)=(3.95±0.32(stat)±0.08(sys))Ã10â2 separating short- and long-lived contributions, assuming that the short-lived component is due to Bcdecays, gives RB= (3.57 ± 0.33(stat) ± 0.11(sys)) à 10â2, with the fraction of non-prompt X(3872) produced via Bcdecays for pT(X(3872)) > 10 GeV being (25 ± 13(stat) ± 2(sys) ± 5(spin))%. The distributions of the dipion invariant mass in the X(3872) and Ï(2S) decays are also measured and compared to theoretical predictions.[Figure not available: see fulltext.]
Measurements of psi(2S) and X(3872) -> J/psi pi (+) pi (-) production in pp collisions at root s=8 Tev with the ATLAS detector
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Lohse T; Lohwasser K; Lokajicek M; Long BA; Long JD; Long RE; Longo L; Looper KA; Lopez JA; Mateos DL; Paredes BL; Paz IL; Solis AL; Lorenz J; Martinez NL; Losada M; Losel PJ; Lou X; Lounis A; Love J; Love PA; Lu H; Lu N; Lubatti HJ; Luci C; Lucotte A; Luedtke C; Luehring F; Lukas W; Luminari L; Lundberg O; Lund Jensen B; Luzi PM; Lynn D; Lysak R; Lytken E; Lyubushkin V; Ma H; Ma LL; Ma Y; Maccarrone G; Macchiolo A; Macdonald CM; Macek B; Miguens JM; Madaffari D; Madar R; Maddocks HJ; Mader WF; Madsen A; Maeda J; Maeland S; Maeno T; Maevskiy A; Magradze E; Mahlstedt J; Maiani C; Maidantchik C; Maier AA; Maier T; Maio A; Majewski S; Makida Y; Makovec N; Malaescu B; Malecki P; Maleev VP; Malek F; Mallik U; Malon D; Malone C; Malone C; Maltezos S; Malyukov S; Mamuzic J; Mancini G; Mandelli L; Mandic I; Maneira J; de Andrade LM; Ramos JM; Mann A; Manousos A; Mansoulie B; Mansour JD; Mantifel R; Mantoani M; Manzoni S; Mapelli L; Marceca G; March L; Marchiori G; Marcisovsky M; Marjanovic M; Marley DE; Marroquim F; Marsden SP; Marshall Z; Marti Garcia S; Martin B; Martin TA; Martin VJ; Latour BMD; Martinez M; Outschoorn VIM; Martin Haugh S; Martoiu VS; Martyniuk AC; Marx M; Marzin A; Masetti L; Mashimo T; Mashinistov R; Masik J; Maslennikov AL; Massa I; Massa L; Mastrandrea P; MASTROBERARDINO, Anna ;Masubuchi T; Mattig P; Mattmann J; Maurer J; Maxfield SJ; Maximov DA; Mazini R; Mazza SM; Mc Fadden NC; Mc Goldrick G; Mc Kee SP; McCarn A; McCarthy RL; McCarthy TG; McClymont LI; McDonald EF; Mcfayden JA; Mchedlidze G; McMahon SJ; McPherson RA; Medinnis M; Meehan S; Mehlhase S; Mehta A; Meier K; Meineck C; Meirose B; Melini D; Garcia BRM; Melo M; Meloni F; Mengarelli A; Menke S; Meoni E ;Mergelmeyer S; Mermod P; Merola L; Meroni C; Merritt FS; Messina A; Metcalfe J; Mete AS; Meyer C; Meyer C; Meyer JP; Meyer J; Theenhausen HMZ; Miano F; Middleton RP; Miglioranzi S; Mijovic L; Mikenberg G; Mikestikova M; Mikuz M; Milesi M; Milic A; Miller DW; Mills C; Milov A; Milstead DA; Minaenko AA; Minami Y; Minashvili IA; Mincer AI; Mindur B; Mineev M; Minegishi Y; Ming Y; Mir LM; Mistry KP; Mitani T; Mitrevski J; Mitsou VA; Miucci A; Miyagawa PS; Mjornmark JU; Mlynarikova M; Moa T; Mochizuki K; Mohapatra S; Molander S; Moles Valls R; Monden R; Mondragon MC; Monig K; Monk J; Monnier E; Montalbano A; Berlingen JM; Monticelli F; Monzani S; Moore RW; Morange N; Moreno D; Llacer MM; Morettini P; Morgenstern S; Mori D; Mori T; Morii M; Morinaga M; Morisbak V; Moritz S; Morley AK; Mornacchi G; Morris JD; Mortensen SS; Morvaj L; Mosidze M; Moss J; Motohashi K; Mount R; Mountricha E; Moyse EJW; Muanza S; Mudd RD; Mueller F; Mueller J; Mueller RSP; Mueller T; Muenstermann D; Mullen P; Mullier GA; Sanchez FJM; Quijada JAM; Murray WJ; Musheghyan H; Muskinja M; Myagkov AG; Myska M; Nachman BP; Nackenhorst O; Nagai K; Nagai R; Nagano K; Nagasaka Y; Nagata K; Nagel M; Nagy E; Nairz AM; Nakahama Y; Nakamura K; Nakamura T; Nakano I; Namasivayam H; Garcia RFN; Narayan R; Villar DIN; Naryshkin I; Naumann T; Navarro G; Nayyar R; Neal HA; Nechaeva PY; Neep TJ; Negri A; Negrini M; Nektarijevic S; Nellist C; Nelson A; Nemecek S; Nemethy P; Nepomuceno AA; Nessi M; Neubauer MS; Neumann M; Neves RM; Nevski P; Newman PR; Nguyen DH; Manh TN; Nickerson RB; Nicolaidou R; Nielsen J; Nikiforov A; Nikolaenko V; Nikolic Audit I; Nikolopoulos K; Nilsen JK; Nilsson P; Ninomiya Y; Nisati A; Nisius R; Nobe T; Nomachi M; Nomidis I; Nooney T; Norberg S; Nordberg M; Norjoharuddeen N; Novgorodova O; Nowak S; Nozaki M; Nozka L; Ntekas K; Nurse E; Nuti F; O'grady F; O'Neil DC; O'Rourke AA; O'Shea V; Oakham FG; Oberlack H; Obermann T; Ocariz J; Ochi A; Ochoa I; Ochoa Ricoux JP; Oda S; Odaka S; Ogren H; Oh A; Oh SH; Ohm CC; Ohman H; Oide H; Okawa H; Okumura Y; Okuyama T; Olariu A; Seabra LFO; Pino SAO; Damazio DO; Olszewski A; Olszowska J; Onofre A; Onogi K; Onyisi PUE; Oreglia MJ; Oren Y; Orestano D; Orlando N; Orr RS; Osculati B; Ospanov R; Garzon GOY; Otono H; Ouchrif M; Ould Saada F; Ouraou A; Oussoren KP; Ouyang Q; Owen M; Owen RE; Ozcan VE; Ozturk N; Pachal K; Pages AP; Rodriguez LP; Aranda CP; Pagacova M; Griso SP; Paganini M; Paige F; Pais P; Pajchel K; Palacino G; Palazzo S; Palestini S; Palka M; Pallin D; St Panagiotopoulou E; Pandini CE; Vazquez JGP; Pani P; Panitkin S; Pantea D; Paolozzi L; Papadopoulou TD; Papageorgiou K; Paramonov A; Hernandez DP; Parker AJ; Parker MA; Parker KA; Parodi F; Parsons JA; Parzefall U; Pascuzzi VR; Pasqualucci E; Passaggio S; Pastore F; Pasztor G; Pataraia S; Pater JR; Pauly T; Pearce J; Pearson B; Pedersen LE; Pedersen M; Lopez SP; Pedro R; Peleganchuk SV; Penc O; Peng C; Peng H; Penwell J; Peralva BS; Perego MM; Perepelitsa DV; Codina EP; Perini L; Pernegger H; Perrella S; Peschke R; Peshekhonov VD; Peters K; Peters RFY; Petersen BA; Petersen TC; Petit E; Petridis A; Petridou C; Petroff P; Petrolo E; Petrov M; Petrucci F; Pettersson NE; Peyaud A; Pezoa R; Phillips PW; Piacquadio G; Pianori E; Picazio A; Piccaro E; Piccinini M; Pickering MA; Piegaia R; Pilcher JE; Pilkington AD; Pin AWJ; Pinamonti M; Pinfold JL; Pingel A; Pires S; Pirumov H; Pitt M; Plazak L; Pleier MA; Pleskot V; Plotnikova E; Plucinski P; Pluth D; Poettgen R; Poggioli L; Pohl D; Polesello G; Poley A; Policicchio A; Polifka R; Polini A; Pollard CS; Polychronakos V; Pommes K; Pontecorvo L; Pope BG; Popeneciu GA; Poppleton A; Pospisil S; Potamianos K; Potrap IN; Potter CJ; Potter CT; Poulard G; Poveda J; Pozdnyakov V; Astigarraga MEP; Pralavorio P; Pranko A; Prell S; Price D; Price LE; Primavera M; Prince S; Prokofiev K; Prokoshin F; Protopopescu S; Proudfoot J; Przybycien M; Puddu D; Purohit M; Puzo P; Qian J; Qin G; Qin Y; Quadt A; Quayle WB; Queitsch Maitland M; Quilty D; Raddum S; Radeka V; Radescu V; Radhakrishnan SK; Radloff P; Rados P; Ragusa F; Rahal G; Raine JA; Rajagopalan S; Rammensee M; Rangel Smith C; Ratti MG; Rauscher F; Rave S; Ravenscroft T; Ravinovich I; Raymond M; Read AL; Readioff NP; Reale M; Rebuzzi DM; Redelbach A; Redlinger G; Reece R; Reed RG; Reeves K; Rehnisch L; Reichert J; Reiss A; Rembser C; Ren H; Rescigno M; Resconi S; Rezanova OL; Reznicek P; Rezvani R; Richter R; Richter S; Richter Was E; Ricken O; Ridel M; Rieck P; Riegel CJ; Rieger J; Rifki O; Rijssenbeek M; Rimoldi A; Rimoldi M; Rinaldi L; Ristic B; Ritsch E; Riu I; Rizatdinova F; Rizvi E; Rizzi C; Robertson SH; Robichaud Veronneau A; Robinson D; Robinson JEM; Robson A; Roda C; Rodina Y; Perez AR; Rodriguez DR; Roe S; Rogan CS; Rohne O; Romaniouk A; Romano M; Saez SMR; Adam ER; Rompotis N;