Question

An increase in this quantity is caused by the rotation of a condensate lying along a flat direction in the Affleck–Dine mechanism. This quantity arises as a topological invariant in the Skyrme (“skurm”) model, in which it and a value denoted m categorize different soliton solutions. This quantity corresponds to the U(1)-sub-V (“U one sub V”) symmetry (10[1])of the Standard Model Lagrangian. This is the alphabetically former quantity that can be changed by sphalerons (10[1])in increments of (10[1])three. (10[1])Thermal (-5[1])nonequilibrium is necessary for this quantity to have a net positive value (10[1])by the last of the three (10[1])Sakharov conditions. Quarks have (10[1])a value of one-third (-5[2])for (10[1])this quantity. (-5[4])This quantity’s total (10[1]-5[1])departed (-5[1])from zero in a form of “asymmetry” (-5[2])that began soon after the big bang. (10[2]-5[2])For 10 points, what quantity counts the number of particles that are made up of odd numbers of quarks? (10[1])■END■ (10[8]0[2])

ANSWER: baryon number [accept baryon number asymmetry; accept baryons after “number” is read; prompt on baryon asymmetry until “number” is read and accept after it is read; prompt on B]
<Physics>
= Average correct buzz position

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Summary

2025 ACF Nationals04/19/2025Y2483%0%54%111.85

Buzzes

PlayerTeamOpponentBuzz PositionValue
Alex AkridgeIndianaWaterloo A5110
Adam FineChicago AUC Berkeley A6810
David BassJohns HopkinsChicago B7110
Andrew WangIllinois ANorth Carolina A7210
Shardul ParthasarathyIllinois BMaryland73-5
Amogh KulkarniGeorgia StateArizona State8510
Benjamin ChapmanToronto ANorthwestern9110
June YinWUSTL BWaterloo B9510
Jeremy CummingsWUSTL AColumbia A99-5
Vinu HariharUC Berkeley BPenn State99-5
Tim MorrisonStanfordRutgers10010
Richard NiuCornell AMIT102-5
Calvin BostlemanOhio StateVirginia102-5
Leo LawFloridaOttawa102-5
Alan XieYaleBritish Columbia102-5
Teigue KellyPenn StateUC Berkeley B10510
Athena ShaddenTexasMinnesota105-5
Shiva TegullaUCFNorth Carolina B106-5
William GrogerColumbia BMichigan113-5
Albert Yingzhi NyangLSENYU113-5
Rohan DalalGeorgia TechVirginia Tech12010
Kunaal ChandrashekarToronto BIowa State12010
James McCurleyHarvardToronto C120-5
Henry BonWinona StateCornell B120-5
Shardul RaoMinnesotaTexas13910
Geoffrey WuColumbia AWUSTL A14010
Jonathan HuangMITCornell A14010
Isaac MammelMarylandIllinois B14010
Yashwanth BajjiMichiganColumbia B14010
Ryan RosenbergNYULSE14010
Colin VeeversOttawaFlorida14010
Cade ReinbergerRITVanderbilt14010
Parth JagtapToronto CHarvard1400
Yared TadesseCornell BWinona State1400
Matthew WangBritish ColumbiaYale14010