Observation of a new baryon state in the Λ0bπ+π− mass spectrum; Journal of High Energy Physics; Vol. 2020, iss. 6

Observation of a new baryon state in the Λ0bπ+π− mass spectrum; Journal of High Energy Physics; Vol. 2020, iss. 6

Bibliographic Details
Parent link:	Journal of High Energy Physics Vol. 2020, iss. 6.— 2020.— [136, 25 p.]
Corporate Authors:	Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов, Национальный исследовательский Томский политехнический университет Инженерная школа информационных технологий и робототехники Отделение автоматизации и робототехники (ОАР)
Other Authors:	Aaij R. Roel, Beteta C. A. Carlos Abellan, Ackernley T., Adeva B. Bernardo, Eydelman S. I. Semen Isaakovich, Kharisova A. E. Anastasiya Evgenjevna, Panshin G. L. Gennady Leonidovich
Summary:	Title screen A new baryon state is observed in the Λ0bπ+π− mass spectrum with high significance using a data sample of pp collisions, collected with the LHCb detector at centre-of-mass energies √s = 7, 8 and 13 TeV, corresponding to an integrated luminosity of 9 fb−1. The mass and natural width of the new state are measured to bem=6072.3±2.9±0.6±0.2 MeV,Γ=72±11±2 MeV,m=6072.3±2.9±0.6±0.2 MeV,Γ=72±11±2 MeV,where the first uncertainty is statistical and the second systematic. The third uncertainty for the mass is due to imprecise knowledge of the Λ0bΛb0 baryon mass. The new state is consistent with the first radial excitation of the Λ0bΛb0 baryon, the Λb(2S)0 resonance. Updated measurements of the masses and the upper limits on the natural widths of the previously observed Λb(5912)0 and Λb(5920)0 states are also reported.
Language:	English
Published:	2020
Subjects:	электронный ресурс труды учёных ТПУ B physics heavy quark production spectroscopy Hadron-Hadron scattering (experiments)
Online Access:	https://doi.org/10.1007/JHEP06(2020)136
Format:	Electronic Book Chapter
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664633

Similar Items

Search for the doubly heavy Ξ0bc baryon via decays to D0pK−; Journal of High Energy Physics; Vol. 2020, iss. 11
Published: (2020)

Observation of a Λb0 − Λ¯b0 production asymmetry in proton-proton collisions at √s = 7 and 8 TeV; Journal of High Energy Physics; Vol. 2021, iss. 10
Published: (2021)

Measurement of the Λ0b→ J/ψΛ angular distribution and the Λ0b polarisation in pp collisions; Journal of High Energy Physics; Vol. 2020, iss. 6
Published: (2020)

Near-threshold DD¯ spectroscopy and observation of a new charmonium state; Journal of High Energy Physics; Vol. 2019, iss. 7
Published: (2019)

Observation of the decay Λ0bΛb0 → χc1pπ−; Journal of High Energy Physics; Vol. 2021, iss. 5
Published: (2021)

Study of B0s→ J/ψπ+π−K+K− decays; Journal of High Energy Physics; Vol. 2021, iss. 2
Published: (2021)

Study of the ψ2(3823) and χc1(3872) states in B+ → (J/ψπ+π−)K+ decays; Journal of High Energy Physics; Vol. 2020, iss. 8
Published: (2020)

Study of the B0 → ρ(770)°K*(892)0 decay with an amplitude analysis of B0 → (π+π−)(K+π−) decays; Journal of High Energy Physics; Vol. 2019, iss. 5
Published: (2019)

Precision measurement of the B+c meson mass; Journal of High Energy Physics; Vol. 2020, iss. 7
Published: (2020)

Search for a heavy resonance decaying to a top quark and a W boson at √s = 13 TeV in the fully hadronic final state; Journal of High Energy Physics; Vol. 2021, iss. 12
Published: (2021)

Measurement of CP observables in B± → DK± and B± → Dπ± with D → K0SK±π∓KS0K±π∓ decays; Journal of High Energy Physics; Vol. 2020, iss. 6
Published: (2020)

Search for excited B+c states; Journal of High Energy Physics; Vol. 2018, iss. 1
Published: (2018)

Measurement of J/ψ production cross-sections in pp collisions at √s = 5 TeV; Journal of High Energy Physics; Vol. 2021, iss. 11
Published: (2021)

Search for the doubly charmed baryon Ξ+ccΞcc+ in the Ξ+cπ−π+Ξc+π−π+ final state; Journal of High Energy Physics; Vol. 2021, iss. 12
Published: (2021)

Observation of the Λ0b→χc1Λb0→χc1 (3872) pK− decay; Journal of High Energy Physics; Vol. 2019, iss. 9
Published: (2019)

Measurement of the CKM angle γ and Bs0-B¯s0 mixing frequency with Bs0→Ds∓h±π±π∓ decays; Journal of High Energy Physics; Vol. 2021, iss. 3
Published: (2021)

Amplitude analysis of B0s → K0SK±π∓ decays; Journal of High Energy Physics; Vol. 2019, iss. 6
Published: (2019)

Measurement of CP observables in B± → D(*)K± and B± → D(*)π± decays using two-body D final states; Journal of High Energy Physics; Vol. 2021, iss. 4
Published: (2021)

In-medium modification of dijets in PbPb collisions at √sNN = 5.02 TeV; Journal of High Energy Physics; Vol. 2021, iss. 5
Published: (2021)

Constraints on the CKM angle γ from B± → Dh± decays using D → h±h′∓π0 final states; Journal of High Energy Physics; Vol. 2022, iss. 7
Published: (2022)

Precision measurement of the Ξcc++ mass; Journal of High Energy Physics; Vol. 2020, iss. 2
Published: (2020)

Search for electroweak production of a vector-like T quark using fully hadronic final states; Journal of High Energy Physics; Vol. 2020, iss. 1
Published: (2020)

Amplitude analysis of the B0(s)→K∗0K¯∗0B(s)0→K∗0K¯∗0 decays and measurement of the branching fraction of the B0→K∗0K¯∗0B0→K∗0K¯∗0 decay; Journal of High Energy Physics; Vol. 2019, iss. 7
Published: (2019)

Observation of the Bs0 → D*±D∓ decay; Journal of High Energy Physics; Vol. 2021, iss. 3
Published: (2021)

Measurement of the CKM angle γ in B± → DK± and B± → Dπ± decays with D → KS0h+h−; Journal of High Energy Physics; Vol. 2021, iss. 2
Published: (2021)

Search for CP violation through an amplitude analysis of D0 → K+K−π+π− decays; Journal of High Energy Physics; Vol. 2019, iss. 2
Published: (2019)

Measurement of properties of B0s→ μ+μ− decays and search for B0→ μ+μ− with the CMS experiment; Journal of High Energy Physics; Vol. 2020, iss. 4
Published: (2020)

Measurement of the branching fractions of the decays D+ → K−K+K+, D+ → π−π+K+ and D+s → π−K+K+; Journal of High Energy Physics; Vol. 2019, iss. 3
Published: (2019)

Studies of B∗s2(5840)0Bs2∗(5840)0 and Bs1(5830)0Bs1(5830)0 mesons including the observation of the B∗s2(5840)0→B0K0SBs2∗(5840)0→B0KS0 decay in proton-proton collisions at s√=8TeV; The European Physical Journal C; Vol. 78, iss. 11
Published: (2018)

Observation of the semileptonic decay B+→pp¯¯¯μ+νμ; Journal of High Energy Physics; Vol. 2020, iss. 3
Published: (2020)

Measurement of the shape of the B0s→Ds∗−μ+νμ differential decay rate; Journal of High Energy Physics; Vol. 2020, iss. 12
Published: (2020)

Study of Drell-Yan dimuon production in proton-lead collisions at √sNN = 8.16 TeV; Journal of High Energy Physics; Vol. 2021, iss. 5
Published: (2021)

Test of lepton universality with Λ0b→pK−ℓ+ℓ−Λb0→pK−ℓ+ℓ− decays; Journal of High Energy Physics; Vol. 2020, iss. 5
Published: (2020)

Observation of CP violation in two-body B(s)0-meson decays to charged pions and kaons; Journal of High Energy Physics; Vol. 2021, iss. 3
Published: (2021)

Study of the B+→J/ψΛ¯pB+→J/ψΛ¯p decay in proton-proton collisions at √s = 8 TeV; Journal of High Energy Physics; Vol. 2019, iss. 12
Published: (2019)

Measurement of CP observables in the process B0 → DK*0 with two- and four-body D decays; Journal of High Energy Physics; Vol. 2019, iss. 8
Published: (2019)

Measurement of branching fraction ratios for B+ → D*+D−K+, B+ → D*−D+K+, and B0 → D*−D0K+ decays; Journal of High Energy Physics; Vol. 2020, iss. 12
Published: (2020)

Measurement of the CP asymmetry in B− → D− s D0 and B− → D−D0 decays; Journal of High Energy Physics; Vol. 2018, iss. 5
Published: (2018)

Search for vector-like T and B quark pairs in final states with leptons at s√=13s=13 TeV; Journal of High Energy Physics; Vol. 2018, iss. 8
Published: (2018)

Search for CP violation in D+(s)→h+π0 and D+(s)→h+η decays; Journal of High Energy Physics; Vol. 2021, iss. 6
Published: (2021)