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Searching for long-lived particles beyond the Standard Model at the Large Hadron Collider
Juliette Alimena, James Beacham, Martino Borsato +198
Particles beyond the Standard Model (SM) can generically have lifetimes that are long compared to SM particles at the weak scale. When produced at experiments such as the Large Had…
Data-Driven Precision Luminosity Measurements with Z Bosons at the LHC and HL-LHC
Jakob Salfeld-Nebgen, Daniel Marlow
A method to measure integrated luminosities at the LHC using Z bosons without theoretical cross section input is discussed. The main uncertainties and the prospects for precision l…
Dalitz analysis of B --> K pi psi' decays and the Z(4430)+
R. Mizuk
From a Dalitz plot analysis of B --> K pi psi' decays, we find a signal for Z(4430)+ --> pi+ psi' with a mass M= (4443(+15-12)(+19-13))MeV/c^2, width Gamma= (107(+86-43)(+74-56))Me…
Measurement of the Branching Ratio
The E949 Collaboration
Experiment E949 at Brookhaven National Laboratory studied the rare decay $K^+\toπ^+ν\barν1.77\times 10^{12}K^+$'s. The data were anal…
Study of tau- -> K_S pi- nu_tau decay at Belle
Belle Collaboration
We present a study of the decay tau- -> K_S pi- nu_tau using a 351 fb^-1 data sample collected with the Belle detector. The analysis is based on 53110 lepton-tagged signal events.…
Evidence for D0-anti-D0 Mixing
The BABAR Collaboration, B. Aubert
We present evidence for D0-anti-D0 mixing in D0 --> K+pi- decays from 384 fb^{-1} of e+e- colliding-beam data recorded near sqrt(s) 10.6 GeV with the BaBar detector at the PEP-II s…
Measurement of the branching fraction, polarization, and CP asymmetry for B0->rho+rho- decays, and determination of the CKM phase phi_2
A. Somov, A. J. Schwartz
We have measured the branching fraction B, longitudinal polarization fraction f_L, and CP asymmetry coefficients A and S for B0->rho+rho- decays with the Belle detector at the KEKB…
Evidence for Large Direct CP Violation in B+-=>rho(770)0K+- from Analysis of the Three-Body Charmless B+-=>K+-pi+-pi-+ Decay
A. Garmash
We report results on a Dalitz analysis of three-body charmless B+-=>K+-pi+-pi-+ decay including searches for direct CP violation. We report the first observation of the decay B+=>f…
Observation of b --> d gamma and Determination of |V_td/V_ts|
D. Mohapatra
We report the observation of the flavor-changing neutral current process b --> d gamma using a sample of 386*10^6 B meson pairs accumulated by the Belle detector at the KEKB e+ e-…
Charge Asymmetry of Same-Sign Dileptons in - Mixing
E. Nakano
We report a measurement of the charge asymmetry for same-sign dileptons in - mixing, . The data were collected with the Belle detector at KEKB. Using a…
Measurement of phi_3 with Dalitz Plot Analysis of B+- -> D K*+- Decay
K. Abe
We present a measurement of the unitarity triangle angle phi_3 using a Dalitz plot analysis of the three-body decay of the neutral D meson from the B+- -> D K*+- process. Using a 2…
Dalitz analysis of the three-body charmless decays B+=>K+Pi+Pi- and B+=>K+K+K-
A. Garmash
We report results on the Dalitz analysis of three-body charmless B+=>K+Pi+Pi- and B+=>K+K+K- decays based on a 140 fb data sample collected with the Belle detector. Measurem…
Study of the Suppressed Decays and
M. Saigo
We report a study of the suppressed decays and , where indicates that the pair originates from a neutral …
Evidence for Direct CP Violation in B0 -> K+- pi-+ Decays
Y. Chao
We report evidence for direct CP violation in the decay B0 -> K+-pi-+ with 253/fb of data collected with the Belle detector at the KEKB e+e- collider. Using 275 million B B_bar pai…
Time-Dependent CP Violation Effects in Partially Reconstructed Decays
T. Gershon
We report measurements of time-dependent decay rates for decays and extraction of CP violation parameters related to . We use a partial reconstruction…
Improved Measurements of Partial Rate Asymmetry in B -> h h Decays
Y. Chao, P. Chang
We report improved measurements of the partial rate asymmetry (Acp) in B -> h h decays with 140fb^-1 of data collected with the Belle detector at the KEKB e+e- collider. Here h sta…
Observation of the Decays B0->K+pi-pi0 and B0->rho-K+
P. Chang
We report the observation of B^0 decays to the K^+pi^-pi^0 final state using a data sample of 78 fb^-1 collected by the Belle detector at the KEKB e^+e^- collider. With no assumpti…
Evidence of B0 --> rho0 pi0
J. Dragic, T. Gershon
We present the first evidence of the decay B0 --> rho0 pi0, using 140fb^-1 of data collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric e+e- collid…
Observation of Large CP Violation and Evidence for Direct CP Violation in B0-->pi+pi- Decays
K. Abe
We report the first observation of CP-violating asymmetries in B0 --> pi+pi- decays based on a 140 fb-1 data sample collected at the Upsilon(4S) resonance with the Belle detector a…
Observation of a New Narrow Charmonium State in Exclusive B+-->K+ pi+pi- J/psi Decays
The Belle Collaboration, K. Abe
We report the first observation of a narrow charmmonium state produced in the exclusive decay process B+->K+ pi+pi- J/psi. This state, which decays into pi+pi-J/psi, has a mass of…
Apparatus for a Search for T-violating Muon Polarization in Stopped-Kaon Decays
E246 Collaboration, M. Abe
The detector built at KEK to search for T-violating transverse muon polarization in K+ --> pi0 mu+ nu (Kmu3) decay of stopped kaons is described. Sensitivity to the transverse pola…
Measurement of Branching Fractions and Charge Asymmetries for Two-Body B Meson Decays with Charmonium
Belle Collaboration
We report branching fractions and charge asymmetries for exclusive decays of charged and neutral B mesons to two-body final states containing a charmonium meson, J/psi or psi(2S).…
Measurement of the Electroweak Penguin Process B --> X(s) l+ l-
J. Kaneko, Belle Collaboration
We report the first measurement of the branching fraction for the inclusive decay B --> X(s) l+ l-, where l is either an electron or a muon and X(s) is a hadronic recoil system tha…
Improved Measurement of Mixing-induced CP Violation in the Neutral B Meson System
The Belle Collaboration, K. Abe
We present an improved measurement of the standard model CP violation parameter sin2phi_1 (also known as sin2beta) based on a sample of 85 times 10^6 B Bbar pairs collected at the…